4C2M

Structure of RNA polymerase I at 2.8 A resolution

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A [auth 1]	d4c2m1_	Small proteins	Rubredoxin-like	RNA polymerase subunits	RBP12 subunit of RNA polymerase II	RBP12 subunit of RNA polymerase II	(Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
P [auth L]	d4c2ml_	Small proteins	Rubredoxin-like	RNA polymerase subunits	RBP12 subunit of RNA polymerase II	RBP12 subunit of RNA polymerase II	(Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
J [auth F]	d4c2mf_	All alpha proteins	RPB6/omega subunit-like	RPB6/omega subunit-like	RPB6	RPB6	(Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
Y [auth U]	d4c2mu_	All alpha proteins	RPB6/omega subunit-like	RPB6/omega subunit-like	RPB6	RPB6	(Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
AA [auth W]	d4c2mw_	All beta proteins	OB-fold	Nucleic acid-binding proteins	RNA polymerase subunit RBP8	RNA polymerase subunit RBP8	(Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
L [auth H]	d4c2mh_	All beta proteins	OB-fold	Nucleic acid-binding proteins	RNA polymerase subunit RBP8	RNA polymerase subunit RBP8	(Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
BA [auth X]	d4c2mx1	Small proteins	Rubredoxin-like	Zinc beta-ribbon	Transcriptional factor domain	RNA polymerase I subunit A12.2	(Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
M [auth I]	d4c2mi1	Small proteins	Rubredoxin-like	Zinc beta-ribbon	Transcriptional factor domain	RNA polymerase I subunit A12.2	(Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
CA [auth Y]	d4c2my_	All alpha proteins	DNA/RNA-binding 3-helical bundle	RNA polymerase subunit RPB10	RNA polymerase subunit RPB10	RNA polymerase subunit RPB10	(Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
N [auth J]	d4c2mj_	All alpha proteins	DNA/RNA-binding 3-helical bundle	RNA polymerase subunit RPB10	RNA polymerase subunit RPB10	RNA polymerase subunit RPB10	(Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
DA [auth Z]	d4c2mz_	Alpha and beta proteins (a+b)	DCoH-like	RBP11-like subunits of RNA polymerase	automated matches	automated matches	(Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
O [auth K]	d4c2mk_	Alpha and beta proteins (a+b)	DCoH-like	RBP11-like subunits of RNA polymerase	automated matches	automated matches	(Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
B [auth 2]	d4c2m2_	All beta proteins	triple barrel	Rap30/74 interaction domain-like	RNA polymerase I A49/34.5, interaction domains	RNA polymerase I subunit A49, interaction domain	(Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
Q [auth M]	d4c2mm_	All beta proteins	triple barrel	Rap30/74 interaction domain-like	RNA polymerase I A49/34.5, interaction domains	RNA polymerase I subunit A49, interaction domain	(Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
C [auth 3]	d4c2m3_	All beta proteins	triple barrel	Rap30/74 interaction domain-like	RNA polymerase I A49/34.5, interaction domains	RNA polymerase I subunit A34.5, interaction domain	(Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
R [auth N]	d4c2mn_	All beta proteins	triple barrel	Rap30/74 interaction domain-like	RNA polymerase I A49/34.5, interaction domains	RNA polymerase I subunit A34.5, interaction domain	(Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
K [auth G]	d4c2mg1	Alpha and beta proteins (a+b)	Dodecin subunit-like	N-terminal, heterodimerisation domain of RBP7 (RpoE)	RNA polymerase I subunit A43, N-terminal domain	RNA polymerase I subunit A43, N-terminal domain	(Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
Z [auth V]	d4c2mv1	Alpha and beta proteins (a+b)	Dodecin subunit-like	N-terminal, heterodimerisation domain of RBP7 (RpoE)	RNA polymerase I subunit A43, N-terminal domain	RNA polymerase I subunit A43, N-terminal domain	(Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
E [auth A]	d4c2ma_	Multi-domain proteins (alpha and beta)	beta and beta-prime subunits of DNA dependent RNA-polymerase	beta and beta-prime subunits of DNA dependent RNA-polymerase	RNA-polymerase beta-prime	RNA polymerase I subunit A190	(Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
T [auth P]	d4c2mp_	Multi-domain proteins (alpha and beta)	beta and beta-prime subunits of DNA dependent RNA-polymerase	beta and beta-prime subunits of DNA dependent RNA-polymerase	RNA-polymerase beta-prime	RNA polymerase I subunit A190	(Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
F [auth B]	d4c2mb_	Multi-domain proteins (alpha and beta)	beta and beta-prime subunits of DNA dependent RNA-polymerase	beta and beta-prime subunits of DNA dependent RNA-polymerase	RNA-polymerase beta	RNA polymerase I subunit A135	(Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
U [auth Q]	d4c2mq_	Multi-domain proteins (alpha and beta)	beta and beta-prime subunits of DNA dependent RNA-polymerase	beta and beta-prime subunits of DNA dependent RNA-polymerase	RNA-polymerase beta	RNA polymerase I subunit A135	(Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
G [auth C]	d4c2mc1	Alpha and beta proteins (a+b)	DCoH-like	RBP11-like subunits of RNA polymerase	RNA polymerase alpha subunit dimerisation domain	RNA polymerases I and III subunit AC40	(Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
G [auth C]	d4c2mc2	Alpha and beta proteins (a+b)	Insert subdomain of RNA polymerase alpha subunit	Insert subdomain of RNA polymerase alpha subunit	Insert subdomain of RNA polymerase alpha subunit	RNA polymerases I and III subunit AC40	(Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
V [auth R]	d4c2mr1	Alpha and beta proteins (a+b)	DCoH-like	RBP11-like subunits of RNA polymerase	RNA polymerase alpha subunit dimerisation domain	RNA polymerases I and III subunit AC40	(Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
V [auth R]	d4c2mr2	Alpha and beta proteins (a+b)	Insert subdomain of RNA polymerase alpha subunit	Insert subdomain of RNA polymerase alpha subunit	Insert subdomain of RNA polymerase alpha subunit	RNA polymerases I and III subunit AC40	(Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
I [auth E]	d4c2me1	Alpha and beta proteins (a/b)	Restriction endonuclease-like	Eukaryotic RPB5 N-terminal domain	Eukaryotic RPB5 N-terminal domain	Eukaryotic RPB5 N-terminal domain	(Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
I [auth E]	d4c2me2	Alpha and beta proteins (a+b)	RPB5-like RNA polymerase subunit	RPB5-like RNA polymerase subunit	RPB5	Eukaryotic RPB5 C-terminal domain	(Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
X [auth T]	d4c2mt1	Alpha and beta proteins (a/b)	Restriction endonuclease-like	Eukaryotic RPB5 N-terminal domain	Eukaryotic RPB5 N-terminal domain	Eukaryotic RPB5 N-terminal domain	(Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
X [auth T]	d4c2mt2	Alpha and beta proteins (a+b)	RPB5-like RNA polymerase subunit	RPB5-like RNA polymerase subunit	RPB5	Eukaryotic RPB5 C-terminal domain	(Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth 1]	SCOP2B Superfamily	RNA polymerase subunits	8042695	3001823	SCOP2B (2022-06-29)
P [auth L]	SCOP2B Superfamily	RNA polymerase subunits	8042695	3001823	SCOP2B (2022-06-29)
J [auth F]	SCOP2B Superfamily	RPB6/omega subunit-like	8042688	3000189	SCOP2B (2022-06-29)
Y [auth U]	SCOP2B Superfamily	RPB6/omega subunit-like	8042688	3000189	SCOP2B (2022-06-29)
AA [auth W]	SCOP2B Superfamily	RBP8/CHS5 N-terminal domain-like	8093392	3002702	SCOP2B (2022-06-29)
AA [auth W]	SCOP2B Superfamily	RBP8/CHS5 N-terminal domain-like	8041967	3002702	SCOP2B (2022-06-29)
L [auth H]	SCOP2B Superfamily	RBP8/CHS5 N-terminal domain-like	8093392	3002702	SCOP2B (2022-06-29)
L [auth H]	SCOP2B Superfamily	RBP8/CHS5 N-terminal domain-like	8041967	3002702	SCOP2B (2022-06-29)
CA [auth Y]	SCOP2B Superfamily	RNA polymerase subunit RPB10	8042692	3001213	SCOP2B (2022-06-29)
N [auth J]	SCOP2B Superfamily	RNA polymerase subunit RPB10	8042692	3001213	SCOP2B (2022-06-29)
DA [auth Z]	SCOP2B Superfamily	RBP11-like subunits of RNA polymerase	8080736	3001655	SCOP2B (2022-06-29)
O [auth K]	SCOP2B Superfamily	RBP11-like subunits of RNA polymerase	8080736	3001655	SCOP2B (2022-06-29)
I [auth E]	SCOP2B Superfamily	Eukaryotic RPB5 N-terminal domain	8044454	3000444	SCOP2B (2022-06-29)
I [auth E]	SCOP2B Superfamily	RPB5-like RNA polymerase subunit	8035939	3001722	SCOP2B (2022-06-29)
X [auth T]	SCOP2B Superfamily	RPB5-like RNA polymerase subunit	8035939	3001722	SCOP2B (2022-06-29)
X [auth T]	SCOP2B Superfamily	Eukaryotic RPB5 N-terminal domain	8044454	3000444	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth 1]	DNA_RNApol_7kD	e4c2m11	A: few secondary structure elements	X: Rubredoxin-like	H: Rubredoxin-related	T: Rubredoxin-related	F: DNA_RNApol_7kD	ECOD (1.6)
P [auth L]	DNA_RNApol_7kD	e4c2mL1	A: few secondary structure elements	X: Rubredoxin-like	H: Rubredoxin-related	T: Rubredoxin-related	F: DNA_RNApol_7kD	ECOD (1.6)
J [auth F]	RNA_pol_Rpb6_1	e4c2mF1	A: alpha arrays	X: RPB6/omega subunit-like (From Homology)	H: RPB6/omega subunit-like	T: RPB6	F: RNA_pol_Rpb6_1	ECOD (1.6)
Y [auth U]	RNA_pol_Rpb6_1	e4c2mU1	A: alpha arrays	X: RPB6/omega subunit-like (From Homology)	H: RPB6/omega subunit-like	T: RPB6	F: RNA_pol_Rpb6_1	ECOD (1.6)
AA [auth W]	RNA_pol_Rpb8	e4c2mW1	A: beta barrels	X: OB-fold	H: Nucleic acid-binding proteins (From Topology)	T: Nucleic acid-binding proteins	F: RNA_pol_Rpb8	ECOD (1.6)
L [auth H]	RNA_pol_Rpb8	e4c2mH1	A: beta barrels	X: OB-fold	H: Nucleic acid-binding proteins (From Topology)	T: Nucleic acid-binding proteins	F: RNA_pol_Rpb8	ECOD (1.6)
BA [auth X]	RNA_POL_M_15KD	e4c2mX1	A: few secondary structure elements	X: Rubredoxin-like	H: Rubredoxin-related	T: Rubredoxin-related	F: RNA_POL_M_15KD	ECOD (1.6)
BA [auth X]	TFIIS_C	e4c2mX2	A: few secondary structure elements	X: Rubredoxin-like	H: Rubredoxin-related	T: Rubredoxin-related	F: TFIIS_C	ECOD (1.6)
M [auth I]	RNA_POL_M_15KD	e4c2mI1	A: few secondary structure elements	X: Rubredoxin-like	H: Rubredoxin-related	T: Rubredoxin-related	F: RNA_POL_M_15KD	ECOD (1.6)
M [auth I]	TFIIS_C	e4c2mI2	A: few secondary structure elements	X: Rubredoxin-like	H: Rubredoxin-related	T: Rubredoxin-related	F: TFIIS_C	ECOD (1.6)
CA [auth Y]	RNA_pol_N	e4c2mY1	A: alpha arrays	X: HTH	H: RPB10 (From Topology)	T: RPB10	F: RNA_pol_N	ECOD (1.6)
N [auth J]	RNA_pol_N	e4c2mJ1	A: alpha arrays	X: HTH	H: RPB10 (From Topology)	T: RPB10	F: RNA_pol_N	ECOD (1.6)
DA [auth Z]	RNA_pol_L_2	e4c2mZ1	A: a+b two layers	X: DCoH-like	H: RBP11-like subunits of RNA polymerase (From Topology)	T: RBP11-like subunits of RNA polymerase	F: RNA_pol_L_2	ECOD (1.6)
O [auth K]	RNA_pol_L_2	e4c2mK1	A: a+b two layers	X: DCoH-like	H: RBP11-like subunits of RNA polymerase (From Topology)	T: RBP11-like subunits of RNA polymerase	F: RNA_pol_L_2	ECOD (1.6)
B [auth 2]	RNA_pol_I_A49_1st	e4c2m21	A: beta complex topology	X: triple barrel (From Homology)	H: triple barrel	T: RNA polymerase I subunits A49/A34.5 dimerization domains	F: RNA_pol_I_A49_1st	ECOD (1.6)
Q [auth M]	RNA_pol_I_A49_1st	e4c2mM1	A: beta complex topology	X: triple barrel (From Homology)	H: triple barrel	T: RNA polymerase I subunits A49/A34.5 dimerization domains	F: RNA_pol_I_A49_1st	ECOD (1.6)
C [auth 3]	RNA_pol_I_A49_1st	e4c2m31	A: beta complex topology	X: triple barrel (From Homology)	H: triple barrel	T: RNA polymerase I subunits A49/A34.5 dimerization domains	F: RNA_pol_I_A49_1st	ECOD (1.6)
R [auth N]	RNA_polI_A34	e4c2mN1	A: beta complex topology	X: triple barrel (From Homology)	H: triple barrel	T: RNA polymerase I subunits A49/A34.5 dimerization domains	F: RNA_polI_A34	ECOD (1.6)
K [auth G]	KOG4134	e4c2mG2	A: beta barrels	X: OB-fold	H: Nucleic acid-binding proteins (From Topology)	T: Nucleic acid-binding proteins	F: KOG4134	ECOD (1.6)
K [auth G]	SHS2_Rpb7-N	e4c2mG3	A: a+b two layers	X: Dodecin subunit-like	H: Flavin-binding protein dodecin-like (From Topology)	T: Flavin-binding protein dodecin-like	F: SHS2_Rpb7-N	ECOD (1.6)
Z [auth V]	KOG4134	e4c2mV2	A: beta barrels	X: OB-fold	H: Nucleic acid-binding proteins (From Topology)	T: Nucleic acid-binding proteins	F: KOG4134	ECOD (1.6)
Z [auth V]	SHS2_Rpb7-N	e4c2mV1	A: a+b two layers	X: Dodecin subunit-like	H: Flavin-binding protein dodecin-like (From Topology)	T: Flavin-binding protein dodecin-like	F: SHS2_Rpb7-N	ECOD (1.6)
E [auth A]	RNA_pol_Rpb1_2	e4c2mA2	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: double psi	F: RNA_pol_Rpb1_2	ECOD (1.6)
E [auth A]	RNA_pol_Rpb1_2_1	e4c2mA3	A: a+b two layers	X: MoeA-I/Ornithine decarboxylase-C/Reverse ferredoxin-like domain in RNA-polymerase (From Topology)	H: MoeA-I/Ornithine decarboxylase-C/Reverse ferredoxin-like domain in RNA-polymerase (From Topology)	T: MoeA-I/Ornithine decarboxylase-C/Reverse ferredoxin-like domain in RNA-polymerase	F: RNA_pol_Rpb1_2_1	ECOD (1.6)
E [auth A]	KOG0262_2nd	e4c2mA9	A: a+b two layers	X: permuted ferredoxin-like domain in yeast RNA-polymerase beta-prime subunit (From Topology)	H: permuted ferredoxin-like domain in yeast RNA-polymerase beta-prime subunit (From Topology)	T: permuted ferredoxin-like domain in yeast RNA-polymerase beta-prime subunit	F: KOG0262_2nd	ECOD (1.6)
E [auth A]	KOG0262_3rd	e4c2mA8	A: a+b two layers	X: ferredoxin-like domain in yeast RNA-polymerase beta-prime subunit (From Topology)	H: ferredoxin-like domain in yeast RNA-polymerase beta-prime subunit (From Topology)	T: ferredoxin-like domain in yeast RNA-polymerase beta-prime subunit	F: KOG0262_3rd	ECOD (1.6)
E [auth A]	RNA_pol_Rpb1_1	e4c2mA1	A: a+b complex topology	X: N-terminal domain in RNA-polymerase beta-prime subunit (From Topology)	H: N-terminal domain in RNA-polymerase beta-prime subunit (From Topology)	T: N-terminal domain in RNA-polymerase beta-prime subunit	F: RNA_pol_Rpb1_1	ECOD (1.6)
E [auth A]	RNA_pol_Rpb1_5_3rd	e4c2mA7	A: a+b complex topology	X: central helical domain in RNA-polymerase beta-prime subunit (From Topology)	H: central helical domain in RNA-polymerase beta-prime subunit (From Topology)	T: central helical domain in RNA-polymerase beta-prime subunit	F: RNA_pol_Rpb1_5_3rd	ECOD (1.6)
E [auth A]	KOG0262_1st	e4c2mA6	A: a+b complex topology	X: helical domain in yeast RNA-polymerases	H: third helical domain in yeast RNA-polymerase I RPA190 subunit (From Topology)	T: third helical domain in yeast RNA-polymerase I RPA190 subunit	F: KOG0262_1st	ECOD (1.6)
E [auth A]	RNA_pol_Rpb1_4	e4c2mA5	A: a+b complex topology	X: second helical domain in RNA-polymerase beta-prime subunit (From Topology)	H: second helical domain in RNA-polymerase beta-prime subunit (From Topology)	T: second helical domain in RNA-polymerase beta-prime subunit	F: RNA_pol_Rpb1_4	ECOD (1.6)
E [auth A]	RNA_pol_Rpb1_3	e4c2mA4	A: a+b complex topology	X: first helical domain in RNA-polymerase beta-prime subunit (From Topology)	H: first helical domain in RNA-polymerase beta-prime subunit (From Topology)	T: first helical domain in RNA-polymerase beta-prime subunit	F: RNA_pol_Rpb1_3	ECOD (1.6)
T [auth P]	RNA_pol_Rpb1_2	e4c2mP23	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: double psi	F: RNA_pol_Rpb1_2	ECOD (1.6)
T [auth P]	RNA_pol_Rpb1_2_1	e4c2mP24	A: a+b two layers	X: MoeA-I/Ornithine decarboxylase-C/Reverse ferredoxin-like domain in RNA-polymerase (From Topology)	H: MoeA-I/Ornithine decarboxylase-C/Reverse ferredoxin-like domain in RNA-polymerase (From Topology)	T: MoeA-I/Ornithine decarboxylase-C/Reverse ferredoxin-like domain in RNA-polymerase	F: RNA_pol_Rpb1_2_1	ECOD (1.6)
T [auth P]	KOG0262_2nd	e4c2mP8	A: a+b two layers	X: permuted ferredoxin-like domain in yeast RNA-polymerase beta-prime subunit (From Topology)	H: permuted ferredoxin-like domain in yeast RNA-polymerase beta-prime subunit (From Topology)	T: permuted ferredoxin-like domain in yeast RNA-polymerase beta-prime subunit	F: KOG0262_2nd	ECOD (1.6)
T [auth P]	RNAP_I_Rpa1_C	e4c2mP9	A: a+b two layers	X: ferredoxin-like domain in yeast RNA-polymerase beta-prime subunit (From Topology)	H: ferredoxin-like domain in yeast RNA-polymerase beta-prime subunit (From Topology)	T: ferredoxin-like domain in yeast RNA-polymerase beta-prime subunit	F: RNAP_I_Rpa1_C	ECOD (1.6)
T [auth P]	RNA_pol_Rpb1_1	e4c2mP19	A: a+b complex topology	X: N-terminal domain in RNA-polymerase beta-prime subunit (From Topology)	H: N-terminal domain in RNA-polymerase beta-prime subunit (From Topology)	T: N-terminal domain in RNA-polymerase beta-prime subunit	F: RNA_pol_Rpb1_1	ECOD (1.6)
T [auth P]	RNA_pol_Rpb1_5_3rd	e4c2mP3	A: a+b complex topology	X: central helical domain in RNA-polymerase beta-prime subunit (From Topology)	H: central helical domain in RNA-polymerase beta-prime subunit (From Topology)	T: central helical domain in RNA-polymerase beta-prime subunit	F: RNA_pol_Rpb1_5_3rd	ECOD (1.6)
T [auth P]	KOG0262_1st	e4c2mP26	A: a+b complex topology	X: helical domain in yeast RNA-polymerases	H: third helical domain in yeast RNA-polymerase I RPA190 subunit (From Topology)	T: third helical domain in yeast RNA-polymerase I RPA190 subunit	F: KOG0262_1st	ECOD (1.6)
T [auth P]	RNA_pol_Rpb1_4	e4c2mP20	A: a+b complex topology	X: second helical domain in RNA-polymerase beta-prime subunit (From Topology)	H: second helical domain in RNA-polymerase beta-prime subunit (From Topology)	T: second helical domain in RNA-polymerase beta-prime subunit	F: RNA_pol_Rpb1_4	ECOD (1.6)
T [auth P]	RNA_pol_Rpb1_3	e4c2mP22	A: a+b complex topology	X: first helical domain in RNA-polymerase beta-prime subunit (From Topology)	H: first helical domain in RNA-polymerase beta-prime subunit (From Topology)	T: first helical domain in RNA-polymerase beta-prime subunit	F: RNA_pol_Rpb1_3	ECOD (1.6)
F [auth B]	RNA_pol_Rpb2_6_3rd_2	e4c2mB5	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: double psi	F: RNA_pol_Rpb2_6_3rd_2	ECOD (1.6)
F [auth B]	RNA_pol_Rpb2_6_2nd_1	e4c2mB6	A: a+b complex topology	X: alpha/beta-Hammerhead/Barrel-sandwich hybrid	H: alpha/beta-Hammerhead/Barrel-sandwich hybrid	T: Single hybrid motif	F: RNA_pol_Rpb2_6_2nd_1	ECOD (1.6)
F [auth B]	RNA_pol_Rpb2_3	e4c2mB1	A: a+b complex topology	X: N-terminal domain in beta subunit of DNA dependent RNA-polymerase (From Topology)	H: N-terminal domain in beta subunit of DNA dependent RNA-polymerase (From Topology)	T: N-terminal domain in beta subunit of DNA dependent RNA-polymerase	F: RNA_pol_Rpb2_3	ECOD (1.6)
F [auth B]	RNA_pol_Rpb2_1	e4c2mB2	A: a+b complex topology	X: insertion domain in beta subunit of DNA dependent RNA-polymerase (From Topology)	H: insertion domain in beta subunit of DNA dependent RNA-polymerase (From Topology)	T: insertion domain in beta subunit of DNA dependent RNA-polymerase	F: RNA_pol_Rpb2_1	ECOD (1.6)
F [auth B]	RNA_pol_Rpb2_45_1	e4c2mB4	A: a+b complex topology	X: barrel domain in beta subunit of DNA dependent RNA-polymerase (From Topology)	H: barrel domain in beta subunit of DNA dependent RNA-polymerase (From Topology)	T: barrel domain in beta subunit of DNA dependent RNA-polymerase	F: RNA_pol_Rpb2_45_1	ECOD (1.6)
F [auth B]	RNA_pol_Rpb2_7	e4c2mB7	A: a+b complex topology	X: C-terminal domain in beta subunit of DNA dependent RNA-polymerase (From Topology)	H: C-terminal domain in beta subunit of DNA dependent RNA-polymerase (From Topology)	T: C-terminal domain in beta subunit of DNA dependent RNA-polymerase	F: RNA_pol_Rpb2_7	ECOD (1.6)
F [auth B]	RNA_pol_Rpa2_4	e4c2mB3	A: a+b complex topology	X: inserted a+b domain in yeast RNA polymerase beta subunit (From Topology)	H: inserted a+b domain in yeast RNA polymerase beta subunit (From Topology)	T: inserted a+b domain in yeast RNA polymerase beta subunit	F: RNA_pol_Rpa2_4	ECOD (1.6)
U [auth Q]	RNA_pol_Rpb2_6_3rd_2	e4c2mQ4	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: double psi	F: RNA_pol_Rpb2_6_3rd_2	ECOD (1.6)
U [auth Q]	RNA_pol_Rpb2_6_2nd_1	e4c2mQ6	A: a+b complex topology	X: alpha/beta-Hammerhead/Barrel-sandwich hybrid	H: alpha/beta-Hammerhead/Barrel-sandwich hybrid	T: Single hybrid motif	F: RNA_pol_Rpb2_6_2nd_1	ECOD (1.6)
U [auth Q]	RNA_pol_Rpb2_3	e4c2mQ3	A: a+b complex topology	X: N-terminal domain in beta subunit of DNA dependent RNA-polymerase (From Topology)	H: N-terminal domain in beta subunit of DNA dependent RNA-polymerase (From Topology)	T: N-terminal domain in beta subunit of DNA dependent RNA-polymerase	F: RNA_pol_Rpb2_3	ECOD (1.6)
U [auth Q]	RNA_pol_Rpb2_1	e4c2mQ7	A: a+b complex topology	X: insertion domain in beta subunit of DNA dependent RNA-polymerase (From Topology)	H: insertion domain in beta subunit of DNA dependent RNA-polymerase (From Topology)	T: insertion domain in beta subunit of DNA dependent RNA-polymerase	F: RNA_pol_Rpb2_1	ECOD (1.6)
U [auth Q]	RNA_pol_Rpb2_45_1	e4c2mQ5	A: a+b complex topology	X: barrel domain in beta subunit of DNA dependent RNA-polymerase (From Topology)	H: barrel domain in beta subunit of DNA dependent RNA-polymerase (From Topology)	T: barrel domain in beta subunit of DNA dependent RNA-polymerase	F: RNA_pol_Rpb2_45_1	ECOD (1.6)
U [auth Q]	RNA_pol_Rpb2_7	e4c2mQ2	A: a+b complex topology	X: C-terminal domain in beta subunit of DNA dependent RNA-polymerase (From Topology)	H: C-terminal domain in beta subunit of DNA dependent RNA-polymerase (From Topology)	T: C-terminal domain in beta subunit of DNA dependent RNA-polymerase	F: RNA_pol_Rpb2_7	ECOD (1.6)
U [auth Q]	RNA_pol_Rpa2_4	e4c2mQ1	A: a+b complex topology	X: inserted a+b domain in yeast RNA polymerase beta subunit (From Topology)	H: inserted a+b domain in yeast RNA polymerase beta subunit (From Topology)	T: inserted a+b domain in yeast RNA polymerase beta subunit	F: RNA_pol_Rpa2_4	ECOD (1.6)
G [auth C]	RNA_pol_L	e4c2mC1	A: a+b two layers	X: DCoH-like	H: RBP11-like subunits of RNA polymerase (From Topology)	T: RBP11-like subunits of RNA polymerase	F: RNA_pol_L	ECOD (1.6)
G [auth C]	RNA_pol_A_bac_1	e4c2mC2	A: a+b complex topology	X: Ribosomal protein TL5/L25 C-terminal domain-like	H: Insert subdomain of RNA polymerase alpha subunit (From Topology)	T: Insert subdomain of RNA polymerase alpha subunit	F: RNA_pol_A_bac_1	ECOD (1.6)
V [auth R]	RNA_pol_L	e4c2mR1	A: a+b two layers	X: DCoH-like	H: RBP11-like subunits of RNA polymerase (From Topology)	T: RBP11-like subunits of RNA polymerase	F: RNA_pol_L	ECOD (1.6)
V [auth R]	RNA_pol_A_bac_1	e4c2mR2	A: a+b complex topology	X: Ribosomal protein TL5/L25 C-terminal domain-like	H: Insert subdomain of RNA polymerase alpha subunit (From Topology)	T: Insert subdomain of RNA polymerase alpha subunit	F: RNA_pol_A_bac_1	ECOD (1.6)
H [auth D]	RNA_polI_A14	e4c2mD1	A: alpha arrays	X: HhH/H2TH	H: SAM/DNA-glycosylase	T: SAM domain-like	F: RNA_polI_A14	ECOD (1.6)
W [auth S]	RNA_polI_A14	e4c2mS1	A: alpha arrays	X: HhH/H2TH	H: SAM/DNA-glycosylase	T: SAM domain-like	F: RNA_polI_A14	ECOD (1.6)
I [auth E]	RNA_pol_Rpb5_C	e4c2mE1	A: a+b two layers	X: RPB5-like RNA polymerase subunit (From Topology)	H: RPB5-like RNA polymerase subunit (From Topology)	T: RPB5-like RNA polymerase subunit	F: RNA_pol_Rpb5_C	ECOD (1.6)
I [auth E]	RNA_pol_Rpb5_N	e4c2mE2	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Eukaryotic RPB5 N-terminal domain (From Topology)	T: Eukaryotic RPB5 N-terminal domain	F: RNA_pol_Rpb5_N	ECOD (1.6)
X [auth T]	RNA_pol_Rpb5_C	e4c2mT1	A: a+b two layers	X: RPB5-like RNA polymerase subunit (From Topology)	H: RPB5-like RNA polymerase subunit (From Topology)	T: RPB5-like RNA polymerase subunit	F: RNA_pol_Rpb5_C	ECOD (1.6)
X [auth T]	RNA_pol_Rpb5_N	e4c2mT2	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Eukaryotic RPB5 N-terminal domain (From Topology)	T: Eukaryotic RPB5 N-terminal domain	F: RNA_pol_Rpb5_N	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A [auth 1]	2.20.28.30	Mainly Beta	Single Sheet	Rubrerythrin, domain 2	RNA polymerase ii, chain L	CATH (4.3.0)
P [auth L]	2.20.28.30	Mainly Beta	Single Sheet	Rubrerythrin, domain 2	RNA polymerase ii, chain L	CATH (4.3.0)
J [auth F]	3.90.940.10	Alpha Beta	Alpha-Beta Complex	Eukaryotic RPB6 RNA polymerase subunit	RNA polymerase subunit, RPB6/omega	CATH (4.3.0)
Y [auth U]	3.90.940.10	Alpha Beta	Alpha-Beta Complex	Eukaryotic RPB6 RNA polymerase subunit	RNA polymerase subunit, RPB6/omega	CATH (4.3.0)
AA [auth W]	2.40.50.140	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)	Nucleic acid-binding proteins	CATH (4.3.0)
L [auth H]	2.40.50.140	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)	Nucleic acid-binding proteins	CATH (4.3.0)
CA [auth Y]	1.10.10.60	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Homeodomain-like	CATH (4.3.0)
N [auth J]	1.10.10.60	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Homeodomain-like	CATH (4.3.0)
DA [auth Z]	3.30.1360.10	Alpha Beta	2-Layer Sandwich	Gyrase A	domain 2	CATH (4.3.0)
O [auth K]	3.30.1360.10	Alpha Beta	2-Layer Sandwich	Gyrase A	domain 2	CATH (4.3.0)
K [auth G]	2.40.50.140	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)	Nucleic acid-binding proteins	CATH (4.3.0)
S [auth O]	6.10.140.1770	Special	Helix non-globular	Helix Hairpins		CATH (4.3.0)
Z [auth V]	2.40.50.140	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)	Nucleic acid-binding proteins	CATH (4.3.0)
D [auth 4]	6.10.140.1770	Special	Helix non-globular	Helix Hairpins		CATH (4.3.0)
E [auth A]	2.40.40.20	Mainly Beta	Beta Barrel	Barwin-like endoglucanases		CATH (4.3.0)
E [auth A]	3.30.1490.180	Alpha Beta	2-Layer Sandwich	Dna Ligase	domain 1	CATH (4.3.0)
E [auth A]	1.10.274.100	Mainly Alpha	Orthogonal Bundle	Enzyme I	Chain A, domain 2	CATH (4.3.0)
E [auth A]	1.10.132.30	Mainly Alpha	Orthogonal Bundle	Topoisomerase I	Chain A, domain 4	CATH (4.3.0)
E [auth A]	1.10.357.120	Mainly Alpha	Orthogonal Bundle	Tetracycline Repressor	domain 2	CATH (4.3.0)
E [auth A]	3.30.70.2850	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)
T [auth P]	2.40.40.20	Mainly Beta	Beta Barrel	Barwin-like endoglucanases		CATH (4.3.0)
T [auth P]	3.30.1490.180	Alpha Beta	2-Layer Sandwich	Dna Ligase	domain 1	CATH (4.3.0)
T [auth P]	1.10.274.100	Mainly Alpha	Orthogonal Bundle	Enzyme I	Chain A, domain 2	CATH (4.3.0)
T [auth P]	1.10.132.30	Mainly Alpha	Orthogonal Bundle	Topoisomerase I	Chain A, domain 4	CATH (4.3.0)
T [auth P]	1.10.357.120	Mainly Alpha	Orthogonal Bundle	Tetracycline Repressor	domain 2	CATH (4.3.0)
T [auth P]	3.30.70.2850	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)
F [auth B]	3.90.1110.10	Alpha Beta	Alpha-Beta Complex	Dna-directed Rna Polymerase Ii 140kd Polypeptide	Chain: B	CATH (4.3.0)
F [auth B]	3.90.1070.20	Alpha Beta	Alpha-Beta Complex	Hypothetical Protein Ta0175	Chain: A, domain 2	CATH (4.3.0)
F [auth B]	2.40.270.10	Mainly Beta	Beta Barrel	Dna-directed Rna Polymerase Ii 140kd Polypeptide	Chain: B	CATH (4.3.0)
F [auth B]	2.40.50.150	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)	RNA polymerase II, Rpb2 subunit, wall domain	CATH (4.3.0)
F [auth B]	3.90.1800.10	Alpha Beta	Alpha-Beta Complex	DCoH-like	RNA polymerase alpha subunit dimerisation domain	CATH (4.3.0)
U [auth Q]	3.90.1110.10	Alpha Beta	Alpha-Beta Complex	Dna-directed Rna Polymerase Ii 140kd Polypeptide	Chain: B	CATH (4.3.0)
U [auth Q]	3.90.1070.20	Alpha Beta	Alpha-Beta Complex	Hypothetical Protein Ta0175	Chain: A, domain 2	CATH (4.3.0)
U [auth Q]	2.40.270.10	Mainly Beta	Beta Barrel	Dna-directed Rna Polymerase Ii 140kd Polypeptide	Chain: B	CATH (4.3.0)
U [auth Q]	2.40.50.150	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)	RNA polymerase II, Rpb2 subunit, wall domain	CATH (4.3.0)
U [auth Q]	3.90.1800.10	Alpha Beta	Alpha-Beta Complex	DCoH-like	RNA polymerase alpha subunit dimerisation domain	CATH (4.3.0)
G [auth C]	3.30.1360.10	Alpha Beta	2-Layer Sandwich	Gyrase A	domain 2	CATH (4.3.0)
G [auth C]	2.170.120.12	Mainly Beta	Beta Complex	RNA Polymerase Alpha Subunit	Chain A, domain 2	CATH (4.3.0)
V [auth R]	3.30.1360.10	Alpha Beta	2-Layer Sandwich	Gyrase A	domain 2	CATH (4.3.0)
V [auth R]	2.170.120.12	Mainly Beta	Beta Complex	RNA Polymerase Alpha Subunit	Chain A, domain 2	CATH (4.3.0)
H [auth D]	6.10.250.3390	Special	Helix non-globular	Single alpha-helices involved in coiled-coils or other helix-helix interfaces		CATH (4.3.0)
W [auth S]	6.10.250.3390	Special	Helix non-globular	Single alpha-helices involved in coiled-coils or other helix-helix interfaces		CATH (4.3.0)
I [auth E]	3.40.1340.10	Alpha Beta	3-Layer(aba) Sandwich	Dna-directed Rna Polymerases I, Ii, And Iii 27 Kd Polypeptide	Chain: A	CATH (4.3.0)
I [auth E]	3.90.940.20	Alpha Beta	Alpha-Beta Complex	Eukaryotic RPB6 RNA polymerase subunit	RPB5-like RNA polymerase subunit	CATH (4.3.0)
X [auth T]	3.40.1340.10	Alpha Beta	3-Layer(aba) Sandwich	Dna-directed Rna Polymerases I, Ii, And Iii 27 Kd Polypeptide	Chain: A	CATH (4.3.0)
X [auth T]	3.90.940.20	Alpha Beta	Alpha-Beta Complex	Eukaryotic RPB6 RNA polymerase subunit	RPB5-like RNA polymerase subunit	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth 1], P [auth L]	PF03604	DNA directed RNA polymerase, 7 kDa subunit (Zn_ribbon_RPAB4)	DNA directed RNA polymerase, 7 kDa subunit		Domain
J [auth F], Y [auth U]	PF01192	RNA polymerase Rpb6 (RNA_pol_Rpb6)	RNA polymerase Rpb6	-	Family
AA [auth W], L [auth H]	PF03870	RNA polymerase Rpb8 (RNA_pol_Rpb8)	RNA polymerase Rpb8	-	Family
BA [auth X], M [auth I]	PF02150	RNA polymerases M/15 Kd subunit (Zn_ribbon_RPB9)	RNA polymerases M/15 Kd subunit		Domain
BA [auth X], M [auth I]	PF01096	Transcription factor S-II (TFIIS) (Zn_ribbon_TFIIS)	Transcription factor S-II (TFIIS)		Domain
CA [auth Y], N [auth J]	PF01194	RNA polymerases N / 8 kDa subunit (RNA_pol_N)	RNA polymerases N / 8 kDa subunit		Domain
DA [auth Z], O [auth K]	PF13656	RNA polymerase Rpb3/Rpb11 dimerisation domain (RNA_pol_L_2)	RNA polymerase Rpb3/Rpb11 dimerisation domain	The two eukaryotic subunits Rpb3 and Rpb11 dimerise to from a platform onto which the other subunits of the RNA polymerase assemble (D/L in archaea). The prokaryotic equivalent of the Rpb3/Rpb11 platform is the alpha-alpha dimer. The dimerisation do ...	The two eukaryotic subunits Rpb3 and Rpb11 dimerise to from a platform onto which the other subunits of the RNA polymerase assemble (D/L in archaea). The prokaryotic equivalent of the Rpb3/Rpb11 platform is the alpha-alpha dimer. The dimerisation domain of the alpha subunit/Rpb3 is interrupted by an insert domain (Pfam:PF01000). Some of the alpha subunits also contain iron-sulphur binding domains (Pfam:PF00037). Rpb11 is found as a continuous domain. Members of this family include: alpha subunit from eubacteria, alpha subunits from chloroplasts, Rpb3 subunits from eukaryotes, Rpb11 subunits from eukaryotes, RpoD subunits from archaeal spp, and RpoL subunits from archaeal spp. Many of the members of this family carry only the N-terminal region of Rpb11.	Domain
B [auth 2], Q [auth M]	PF06870	A49-like RNA polymerase I associated factor (RNA_pol_I_A49)	A49-like RNA polymerase I associated factor	-	Family
D [auth 4], K [auth G], S [auth O], Z [auth V]	PF17875	RPA43 OB domain in RNA Pol I (RPA43_OB)	RPA43 OB domain in RNA Pol I	This is OB domain found in RPA43 proteins (DNA-directed RNA polymerase I subunit RPA43, also known as A43) in yeast. Functional analysis of RNA polymerase I show that, subunits A14 and A43 form the heterodimer A14/43, which is distantly related to Rp ...	This is OB domain found in RPA43 proteins (DNA-directed RNA polymerase I subunit RPA43, also known as A43) in yeast. Functional analysis of RNA polymerase I show that, subunits A14 and A43 form the heterodimer A14/43, which is distantly related to Rpb4/7 in Pol II and C17/25 in Pol III [1]. Crystal structure analysis show that A43-A14 heterodimer forms the stalk that provides a platform for initiation factors and interacts with newly synthesized RNA [3].	Domain
D [auth 4], K [auth G], S [auth O], Z [auth V]	PF03876	SHS2 domain found in N terminus of Rpb7p/Rpc25p/MJ0397 (SHS2_Rpb7-N)	SHS2 domain found in N terminus of Rpb7p/Rpc25p/MJ0397	Rpb7 bind to Rpb4 to form a heterodimer. This complex is thought to interact with the nascent RNA strand during RNA polymerase II elongation[1]. This family includes the homologs from RNA polymerase I and III. In RNA polymerase I, Rpa43 is at leas ...	Rpb7 bind to Rpb4 to form a heterodimer. This complex is thought to interact with the nascent RNA strand during RNA polymerase II elongation[1]. This family includes the homologs from RNA polymerase I and III. In RNA polymerase I, Rpa43 is at least one of the subunits contacted by the transcription factor TIF-IA [2]. The N terminus of Rpb7p/Rpc25p/MJ0397 has a SHS2 domain that is involved in protein-protein interaction [3].	Domain
E [auth A], T [auth P]	PF00623	RNA polymerase Rpb1, domain 2 (RNA_pol_Rpb1_2)	RNA polymerase Rpb1, domain 2	RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). This domain, domain 2, contains the active site ...	RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). This domain, domain 2, contains the active site. The invariant motif -NADFDGD- binds the active site magnesium ion [1,2].	Domain
E [auth A], T [auth P]	PF05000	RNA polymerase Rpb1, domain 4 (RNA_pol_Rpb1_4)	RNA polymerase Rpb1, domain 4	RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). This domain, domain 4, represents the funnel do ...	RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). This domain, domain 4, represents the funnel domain. The funnel contain the binding site for some elongation factors [1,2].	Domain
E [auth A], T [auth P]	PF04983	RNA polymerase Rpb1, domain 3 (RNA_pol_Rpb1_3)	RNA polymerase Rpb1, domain 3	RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). This domain, domain 3, represents the pore doma ...	RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). This domain, domain 3, represents the pore domain. The 3' end of RNA is positioned close to this domain. The pore delimited by this domain is thought to act as a channel through which nucleotides enter the active site and/or where the 3' end of the RNA may be extruded during back-tracking [1,2].	Domain
E [auth A], T [auth P]	PF04998	RNA polymerase Rpb1, domain 5 (RNA_pol_Rpb1_5)	RNA polymerase Rpb1, domain 5	RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). This domain, domain 5, represents the discontin ...	RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). This domain, domain 5, represents the discontinuous cleft domain that is required to from the central cleft or channel where the DNA is bound [1,2].	Domain
E [auth A], T [auth P]	PF04997	RNA polymerase Rpb1, domain 1 (RNA_pol_Rpb1_1)	RNA polymerase Rpb1, domain 1	RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). This domain, domain 1, represents the clamp dom ...	RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). This domain, domain 1, represents the clamp domain, which a mobile domain involved in positioning the DNA, maintenance of the transcription bubble and positioning of the nascent RNA strand [1,2].	Domain
F [auth B], U [auth Q]	PF04561	RNA polymerase Rpb2, domain 2 (RNA_pol_Rpb2_2)	RNA polymerase Rpb2, domain 2	RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). Rpb2 is the second largest subunit of the RNA po ...	RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). Rpb2 is the second largest subunit of the RNA polymerase. This domain forms one of the two distinctive lobes of the Rpb2 structure. This domain is also known as the lobe domain [1]. DNA has been demonstrated to bind to the concave surface of the lobe domain, and plays a role in maintaining the transcription bubble [1]. Many of the bacterial members contain large insertions within this domain, as region known as dispensable region 1 (DRI).	Domain
F [auth B], U [auth Q]	PF06883	RNA polymerase I, Rpa2 specific domain (RNA_pol_Rpa2_4)	RNA polymerase I, Rpa2 specific domain	This domain is found between domain 3 (Pfam:PF04565) and domain 5 (Pfam:PF04565), but shows no homology to domain 4 of Rpb2. The external domains in multisubunit RNA polymerase (those most distant from the active site) are known to demonstrate mor ...	This domain is found between domain 3 (Pfam:PF04565) and domain 5 (Pfam:PF04565), but shows no homology to domain 4 of Rpb2. The external domains in multisubunit RNA polymerase (those most distant from the active site) are known to demonstrate more sequence variability [1].	Domain
F [auth B], U [auth Q]	PF04560	RNA polymerase Rpb2, domain 7 (RNA_pol_Rpb2_7)	RNA polymerase Rpb2, domain 7	RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). Rpb2 is the second largest subunit of the RNA p ...	RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). Rpb2 is the second largest subunit of the RNA polymerase. This domain comprised of the structural domains anchor and clamp [1]. The clamp region (C-terminal) contains a zinc-binding motif [1]. The clamp region is named due to its interaction with the clamp domain found in Rpb1. The domain also contains a region termed "switch 4". The switches within the polymerase are thought to signal different stages of transcription [1].	Domain
F [auth B], U [auth Q]	PF04565	RNA polymerase Rpb2, domain 3 (RNA_pol_Rpb2_3)	RNA polymerase Rpb2, domain 3	RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). Domain 3, s also known as the fork domain and is ...	RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). Domain 3, s also known as the fork domain and is proximal to catalytic site [1].	Domain
F [auth B], U [auth Q]	PF04563	RNA polymerase beta subunit (RNA_pol_Rpb2_1)	RNA polymerase beta subunit	-	Family
F [auth B], U [auth Q]	PF00562	RNA polymerase Rpb2, domain 6 (RNA_pol_Rpb2_6)	RNA polymerase Rpb2, domain 6	RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). This domain represents the hybrid binding domain ...	RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). This domain represents the hybrid binding domain and the wall domain [1]. The hybrid binding domain binds the nascent RNA strand / template DNA strand in the Pol II transcription elongation complex. This domain contains the important structural motifs, switch 3 and the flap loop and binds an active site metal ion[1]. This domain is also involved in binding to Rpb1 and Rpb3 [1]. Many of the bacterial members contain large insertions within this domain, as region known as dispensable region 2 (DRII).	Domain
G [auth C], V [auth R]	PF01193	RNA polymerase Rpb3/Rpb11 dimerisation domain (RNA_pol_L)	RNA polymerase Rpb3/Rpb11 dimerisation domain	The two eukaryotic subunits Rpb3 and Rpb11 dimerise to from a platform onto which the other subunits of the RNA polymerase assemble (D/L in archaea). The prokaryotic equivalent of the Rpb3/Rpb11 platform is the alpha-alpha dimer. The dimerisation do ...	The two eukaryotic subunits Rpb3 and Rpb11 dimerise to from a platform onto which the other subunits of the RNA polymerase assemble (D/L in archaea). The prokaryotic equivalent of the Rpb3/Rpb11 platform is the alpha-alpha dimer. The dimerisation domain of the alpha subunit/Rpb3 is interrupted by an insert domain (Pfam:PF01000). Some of the alpha subunits also contain iron-sulphur binding domains (Pfam:PF00037). Rpb11 is found as a continuous domain. Members of this family include: alpha subunit from eubacteria, alpha subunits from chloroplasts, Rpb3 subunits from eukaryotes, Rpb11 subunits from eukaryotes, RpoD subunits from archaeal spp, and RpoL subunits from archaeal spp.	Domain
G [auth C], V [auth R]	PF01000	RNA polymerase Rpb3/RpoA insert domain (RNA_pol_A_bac)	RNA polymerase Rpb3/RpoA insert domain	Members of this family include: alpha subunit from eubacteria alpha subunits from chloroplasts Rpb3 subunits from eukaryotes RpoD subunits from archaeal	Domain
H [auth D], W [auth S]	PF08203	Yeast RNA polymerase I subunit RPA14 (RNA_polI_A14)	Yeast RNA polymerase I subunit RPA14	-	Family
I [auth E], X [auth T]	PF01191	RNA polymerase Rpb5, C-terminal domain (RNA_pol_Rpb5_C)	RNA polymerase Rpb5, C-terminal domain	The assembly domain of Rpb5 [1]. The archaeal equivalent to this domain is subunit H. Subunit H lacks the N-terminal domain.	Domain
I [auth E], X [auth T]	PF03871	RNA polymerase Rpb5, N-terminal domain (RNA_pol_Rpb5_N)	RNA polymerase Rpb5, N-terminal domain	Rpb5 has a bipartite structure which includes a eukaryote-specific N-terminal domain and a C-terminal domain resembling the archaeal RNAP subunit H [1,2]. The N-terminal domain is involved in DNA binding and is part of the jaw module in the RNA p ...	Rpb5 has a bipartite structure which includes a eukaryote-specific N-terminal domain and a C-terminal domain resembling the archaeal RNAP subunit H [1,2]. The N-terminal domain is involved in DNA binding and is part of the jaw module in the RNA pol II structure [3]. This module is important for positioning the downstream DNA.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth 1], P [auth L]	DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 4	DNA binding binding nucleic acid binding cation binding transition metal ion binding zinc ion binding ion binding metal ion binding small molecule binding	cellular component biogenesis ribosome biogenesis ribonucleoprotein complex biogenesis cellular process cellular component organization or biogenesis RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription cellular component biogenesis ribosome biogenesis ribonucleoprotein complex biogenesis cellular process cellular component organization or biogenesis RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process transcription by RNA polymerase II biosynthetic process metabolic process macromolecule metabolic process tRNA metabolic process tRNA transcription tRNA transcription by RNA polymerase III transcription by RNA polymerase III nucleolar large rRNA transcription by RNA polymerase I transcription by RNA polymerase I rRNA transcription rRNA metabolic process DNA-templated transcription termination termination of RNA polymerase I transcription RNA-templated transcription termination of RNA polymerase III transcription DNA-templated transcription initiation transcription initiation at RNA polymerase II promoter transcription initiation at RNA polymerase III promoter transcription elongation by RNA polymerase II DNA-templated transcription elongation transcription elongation by RNA polymerase I transcription initiation at RNA polymerase I promoter	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membraneless organelle intracellular membrane-bounded organelle nucleolus intracellular organelle lumen intracellular organelle cellular anatomical structure organelle lumen organelle membraneless organelle nuclear lumen membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membraneless organelle intracellular membrane-bounded organelle nucleolus intracellular organelle lumen intracellular organelle cellular anatomical structure organelle lumen organelle membraneless organelle nuclear lumen protein-containing complex RNA polymerase I complex nuclear protein-containing complex transferase complex catalytic complex transferase complex, transferring phosphorus-containing groups nuclear DNA-directed RNA polymerase complex RNA polymerase complex DNA-directed RNA polymerase complex intracellular protein-containing complex RNA polymerase II, holoenzyme nucleoplasm RNA polymerase II, core complex RNA polymerase III complex cytoplasm peroxisome microbody
J [auth F], Y [auth U]	DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 2	DNA binding binding nucleic acid binding	cellular component biogenesis ribosome biogenesis ribonucleoprotein complex biogenesis cellular process cellular component organization or biogenesis RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription cellular component biogenesis ribosome biogenesis ribonucleoprotein complex biogenesis cellular process cellular component organization or biogenesis RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process transcription by RNA polymerase II biosynthetic process metabolic process macromolecule metabolic process tRNA metabolic process tRNA transcription tRNA transcription by RNA polymerase III transcription by RNA polymerase III nucleolar large rRNA transcription by RNA polymerase I transcription by RNA polymerase I rRNA transcription rRNA metabolic process DNA-templated transcription termination termination of RNA polymerase I transcription RNA-templated transcription termination of RNA polymerase III transcription DNA-templated transcription initiation transcription initiation at RNA polymerase II promoter transcription initiation at RNA polymerase III promoter transcription elongation by RNA polymerase II DNA-templated transcription elongation transcription elongation by RNA polymerase I transcription initiation at RNA polymerase I promoter	membrane-bounded organelle protein-containing complex intracellular anatomical structure RNA polymerase I complex nucleus membrane-enclosed lumen nuclear protein-containing complex transferase complex intracellular organelle lumen intracellular organelle cellular anatomical structure membraneless organelle catalytic complex intracellular membraneless organelle membrane-bounded organelle protein-containing complex intracellular anatomical structure RNA polymerase I complex nucleus membrane-enclosed lumen nuclear protein-containing complex transferase complex intracellular organelle lumen intracellular organelle cellular anatomical structure membraneless organelle catalytic complex intracellular membraneless organelle intracellular membrane-bounded organelle nucleolus transferase complex, transferring phosphorus-containing groups nuclear DNA-directed RNA polymerase complex organelle lumen organelle RNA polymerase complex DNA-directed RNA polymerase complex intracellular protein-containing complex nuclear lumen RNA polymerase II, holoenzyme nucleoplasm RNA polymerase II, core complex RNA polymerase III complex cytoplasm
AA [auth W], L [auth H]	DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 3	DNA binding binding nucleic acid binding	nucleolar large rRNA transcription by RNA polymerase I RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process biosynthetic process transcription by RNA polymerase I rRNA transcription nucleolar large rRNA transcription by RNA polymerase I RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process biosynthetic process transcription by RNA polymerase I rRNA transcription metabolic process cellular process macromolecule metabolic process rRNA metabolic process DNA-templated transcription termination termination of RNA polymerase I transcription RNA-templated transcription termination of RNA polymerase III transcription transcription by RNA polymerase III DNA-templated transcription initiation transcription by RNA polymerase II transcription initiation at RNA polymerase II promoter transcription initiation at RNA polymerase III promoter cellular component biogenesis ribosome biogenesis ribonucleoprotein complex biogenesis cellular component organization or biogenesis transcription elongation by RNA polymerase II DNA-templated transcription elongation transcription elongation by RNA polymerase I tRNA metabolic process tRNA transcription tRNA transcription by RNA polymerase III transcription initiation at RNA polymerase I promoter	membrane-bounded organelle protein-containing complex intracellular anatomical structure RNA polymerase I complex nucleus membrane-enclosed lumen nuclear protein-containing complex transferase complex intracellular organelle lumen intracellular organelle cellular anatomical structure membraneless organelle catalytic complex intracellular membraneless organelle membrane-bounded organelle protein-containing complex intracellular anatomical structure RNA polymerase I complex nucleus membrane-enclosed lumen nuclear protein-containing complex transferase complex intracellular organelle lumen intracellular organelle cellular anatomical structure membraneless organelle catalytic complex intracellular membraneless organelle intracellular membrane-bounded organelle nucleolus transferase complex, transferring phosphorus-containing groups nuclear DNA-directed RNA polymerase complex organelle lumen organelle RNA polymerase complex DNA-directed RNA polymerase complex intracellular protein-containing complex nuclear lumen RNA polymerase II, holoenzyme nucleoplasm RNA polymerase II, core complex RNA polymerase III complex
BA [auth X], M [auth I]	DNA-DIRECTED RNA POLYMERASE I SUBUNIT RPA12	binding nucleic acid binding transcription factor binding RNA polymerase II-specific DNA-binding transcription factor binding protein binding DNA-binding transcription factor binding cation binding transition metal ion binding zinc ion binding ion binding metal ion binding small molecule binding	nucleolar large rRNA transcription by RNA polymerase I RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process biosynthetic process transcription by RNA polymerase I rRNA transcription nucleolar large rRNA transcription by RNA polymerase I RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process biosynthetic process transcription by RNA polymerase I rRNA transcription metabolic process cellular process macromolecule metabolic process rRNA metabolic process DNA-templated transcription termination termination of RNA polymerase I transcription cellular component biogenesis ribosome biogenesis ribonucleoprotein complex biogenesis cellular component organization or biogenesis regulation of cellular process negative regulation of biological process regulation of primary metabolic process negative regulation of RNA biosynthetic process regulation of RNA metabolic process transcription by RNA polymerase II negative regulation of cellular process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process negative regulation of macromolecule metabolic process regulation of biosynthetic process regulation of transcription by RNA polymerase II negative regulation of DNA-templated transcription regulation of biological process negative regulation of transcription by RNA polymerase II negative regulation of metabolic process biological regulation regulation of macromolecule metabolic process regulation of gene expression negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process regulation of macromolecule biosynthetic process regulation of DNA-templated transcription regulation of metabolic process negative regulation of RNA metabolic process transcription elongation by RNA polymerase I DNA-templated transcription elongation DNA-templated transcription initiation transcription initiation at RNA polymerase I promoter	membrane-bounded organelle protein-containing complex intracellular anatomical structure RNA polymerase I complex nucleus membrane-enclosed lumen nuclear protein-containing complex transferase complex intracellular organelle lumen intracellular organelle cellular anatomical structure membraneless organelle catalytic complex intracellular membraneless organelle membrane-bounded organelle protein-containing complex intracellular anatomical structure RNA polymerase I complex nucleus membrane-enclosed lumen nuclear protein-containing complex transferase complex intracellular organelle lumen intracellular organelle cellular anatomical structure membraneless organelle catalytic complex intracellular membraneless organelle intracellular membrane-bounded organelle nucleolus transferase complex, transferring phosphorus-containing groups nuclear DNA-directed RNA polymerase complex organelle lumen organelle RNA polymerase complex DNA-directed RNA polymerase complex intracellular protein-containing complex nuclear lumen
CA [auth Y], N [auth J]	DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 5	DNA binding binding nucleic acid binding cation binding transition metal ion binding zinc ion binding ion binding metal ion binding small molecule binding	cellular component biogenesis ribosome biogenesis ribonucleoprotein complex biogenesis cellular process cellular component organization or biogenesis RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription cellular component biogenesis ribosome biogenesis ribonucleoprotein complex biogenesis cellular process cellular component organization or biogenesis RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process transcription by RNA polymerase II biosynthetic process metabolic process macromolecule metabolic process tRNA metabolic process tRNA transcription tRNA transcription by RNA polymerase III transcription by RNA polymerase III nucleolar large rRNA transcription by RNA polymerase I transcription by RNA polymerase I rRNA transcription rRNA metabolic process DNA-templated transcription termination termination of RNA polymerase I transcription RNA-templated transcription termination of RNA polymerase III transcription DNA-templated transcription initiation transcription initiation at RNA polymerase II promoter transcription initiation at RNA polymerase III promoter transcription elongation by RNA polymerase II DNA-templated transcription elongation transcription elongation by RNA polymerase I transcription initiation at RNA polymerase I promoter	membrane-bounded organelle protein-containing complex intracellular anatomical structure RNA polymerase I complex nucleus membrane-enclosed lumen nuclear protein-containing complex transferase complex intracellular organelle lumen intracellular organelle cellular anatomical structure membraneless organelle catalytic complex intracellular membraneless organelle membrane-bounded organelle protein-containing complex intracellular anatomical structure RNA polymerase I complex nucleus membrane-enclosed lumen nuclear protein-containing complex transferase complex intracellular organelle lumen intracellular organelle cellular anatomical structure membraneless organelle catalytic complex intracellular membraneless organelle intracellular membrane-bounded organelle nucleolus transferase complex, transferring phosphorus-containing groups nuclear DNA-directed RNA polymerase complex organelle lumen organelle RNA polymerase complex DNA-directed RNA polymerase complex intracellular protein-containing complex nuclear lumen RNA polymerase II, holoenzyme nucleoplasm RNA polymerase II, core complex RNA polymerase III complex
DA [auth Z], O [auth K]	DNA-DIRECTED RNA POLYMERASES I AND III SUBUNIT RPAC2	DNA binding binding nucleic acid binding protein binding protein dimerization activity	nucleolar large rRNA transcription by RNA polymerase I RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process biosynthetic process transcription by RNA polymerase I rRNA transcription nucleolar large rRNA transcription by RNA polymerase I RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process biosynthetic process transcription by RNA polymerase I rRNA transcription metabolic process cellular process macromolecule metabolic process rRNA metabolic process DNA-templated transcription termination termination of RNA polymerase I transcription termination of RNA polymerase III transcription transcription by RNA polymerase III DNA-templated transcription initiation transcription initiation at RNA polymerase III promoter cellular component biogenesis ribosome biogenesis ribonucleoprotein complex biogenesis cellular component organization or biogenesis transcription elongation by RNA polymerase I DNA-templated transcription elongation tRNA metabolic process tRNA transcription tRNA transcription by RNA polymerase III transcription initiation at RNA polymerase I promoter	membrane-bounded organelle protein-containing complex intracellular anatomical structure RNA polymerase I complex nucleus membrane-enclosed lumen nuclear protein-containing complex transferase complex intracellular organelle lumen intracellular organelle cellular anatomical structure membraneless organelle catalytic complex intracellular membraneless organelle membrane-bounded organelle protein-containing complex intracellular anatomical structure RNA polymerase I complex nucleus membrane-enclosed lumen nuclear protein-containing complex transferase complex intracellular organelle lumen intracellular organelle cellular anatomical structure membraneless organelle catalytic complex intracellular membraneless organelle intracellular membrane-bounded organelle nucleolus transferase complex, transferring phosphorus-containing groups nuclear DNA-directed RNA polymerase complex organelle lumen organelle RNA polymerase complex DNA-directed RNA polymerase complex intracellular protein-containing complex nuclear lumen RNA polymerase III complex nucleoplasm
B [auth 2], Q [auth M]	DNA-DIRECTED RNA POLYMERASE I SUBUNIT RPA49	DNA binding binding nucleic acid binding	nucleolar large rRNA transcription by RNA polymerase I RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process biosynthetic process transcription by RNA polymerase I rRNA transcription nucleolar large rRNA transcription by RNA polymerase I RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process biosynthetic process transcription by RNA polymerase I rRNA transcription metabolic process cellular process macromolecule metabolic process rRNA metabolic process DNA-templated transcription termination termination of RNA polymerase I transcription cellular component biogenesis ribosome biogenesis ribonucleoprotein complex biogenesis cellular component organization or biogenesis cellular component organization regulation of cellular component size biological regulation regulation of biological quality regulation of cell size regulation of anatomical structure size transcription preinitiation complex assembly RNA polymerase I preinitiation complex assembly protein-DNA complex organization transcription initiation at RNA polymerase I promoter cellular component assembly protein-containing complex assembly protein-containing complex organization protein-DNA complex assembly DNA-templated transcription initiation transcription elongation by RNA polymerase I DNA-templated transcription elongation	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membraneless organelle intracellular membrane-bounded organelle nucleolus intracellular organelle lumen intracellular organelle cellular anatomical structure organelle lumen organelle membraneless organelle nuclear lumen membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membraneless organelle intracellular membrane-bounded organelle nucleolus intracellular organelle lumen intracellular organelle cellular anatomical structure organelle lumen organelle membraneless organelle nuclear lumen protein-containing complex RNA polymerase I complex nuclear protein-containing complex transferase complex catalytic complex transferase complex, transferring phosphorus-containing groups nuclear DNA-directed RNA polymerase complex RNA polymerase complex DNA-directed RNA polymerase complex intracellular protein-containing complex
C [auth 3], R [auth N]	DNA-DIRECTED RNA POLYMERASE I SUBUNIT RPA34	-	nucleolar large rRNA transcription by RNA polymerase I RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process biosynthetic process transcription by RNA polymerase I rRNA transcription nucleolar large rRNA transcription by RNA polymerase I RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process biosynthetic process transcription by RNA polymerase I rRNA transcription metabolic process cellular process macromolecule metabolic process rRNA metabolic process DNA-templated transcription termination termination of RNA polymerase I transcription transcription elongation by RNA polymerase I DNA-templated transcription elongation cellular component biogenesis ribosome biogenesis ribonucleoprotein complex biogenesis cellular component organization or biogenesis DNA-templated transcription initiation transcription initiation at RNA polymerase I promoter	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membraneless organelle intracellular membrane-bounded organelle nucleolus intracellular organelle lumen intracellular organelle cellular anatomical structure organelle lumen organelle membraneless organelle nuclear lumen membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membraneless organelle intracellular membrane-bounded organelle nucleolus intracellular organelle lumen intracellular organelle cellular anatomical structure organelle lumen organelle membraneless organelle nuclear lumen protein-containing complex RNA polymerase I complex nuclear protein-containing complex transferase complex catalytic complex transferase complex, transferring phosphorus-containing groups nuclear DNA-directed RNA polymerase complex RNA polymerase complex DNA-directed RNA polymerase complex intracellular protein-containing complex
D [auth 4], K [auth G], S [auth O], Z [auth V]	DNA-DIRECTED RNA POLYMERASE I SUBUNIT RPA43	-	nucleolar large rRNA transcription by RNA polymerase I RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process biosynthetic process transcription by RNA polymerase I rRNA transcription nucleolar large rRNA transcription by RNA polymerase I RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process biosynthetic process transcription by RNA polymerase I rRNA transcription metabolic process cellular process macromolecule metabolic process rRNA metabolic process DNA-templated transcription termination termination of RNA polymerase I transcription cellular component biogenesis ribosome biogenesis ribonucleoprotein complex biogenesis cellular component organization or biogenesis transcription elongation by RNA polymerase I DNA-templated transcription elongation DNA-templated transcription initiation transcription initiation at RNA polymerase I promoter	membrane-bounded organelle protein-containing complex intracellular anatomical structure RNA polymerase I complex nucleus membrane-enclosed lumen nuclear protein-containing complex transferase complex intracellular organelle lumen intracellular organelle cellular anatomical structure membraneless organelle catalytic complex intracellular membraneless organelle membrane-bounded organelle protein-containing complex intracellular anatomical structure RNA polymerase I complex nucleus membrane-enclosed lumen nuclear protein-containing complex transferase complex intracellular organelle lumen intracellular organelle cellular anatomical structure membraneless organelle catalytic complex intracellular membraneless organelle intracellular membrane-bounded organelle nucleolus transferase complex, transferring phosphorus-containing groups nuclear DNA-directed RNA polymerase complex organelle lumen organelle RNA polymerase complex DNA-directed RNA polymerase complex intracellular protein-containing complex nuclear lumen
E [auth A], T [auth P]	DNA-DIRECTED RNA POLYMERASE I SUBUNIT RPA190	chromatin binding binding promoter-specific chromatin binding DNA binding nucleic acid binding cation binding ion binding metal ion binding small molecule binding	cellular component biogenesis ribosome biogenesis ribonucleoprotein complex biogenesis cellular process cellular component organization or biogenesis nucleolar large rRNA transcription by RNA polymerase I RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process cellular component biogenesis ribosome biogenesis ribonucleoprotein complex biogenesis cellular process cellular component organization or biogenesis nucleolar large rRNA transcription by RNA polymerase I RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process biosynthetic process transcription by RNA polymerase I rRNA transcription metabolic process macromolecule metabolic process rRNA metabolic process DNA-templated transcription termination termination of RNA polymerase I transcription transcription elongation by RNA polymerase I DNA-templated transcription elongation DNA-templated transcription initiation transcription initiation at RNA polymerase I promoter	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membraneless organelle intracellular membrane-bounded organelle nucleolus intracellular organelle lumen intracellular organelle cellular anatomical structure organelle lumen organelle membraneless organelle nuclear lumen membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membraneless organelle intracellular membrane-bounded organelle nucleolus intracellular organelle lumen intracellular organelle cellular anatomical structure organelle lumen organelle membraneless organelle nuclear lumen protein-containing complex RNA polymerase I complex nuclear protein-containing complex transferase complex catalytic complex transferase complex, transferring phosphorus-containing groups nuclear DNA-directed RNA polymerase complex RNA polymerase complex DNA-directed RNA polymerase complex intracellular protein-containing complex
F [auth B], U [auth Q]	DNA-DIRECTED RNA POLYMERASE I SUBUNIT RPA135	ribonucleoside binding binding nucleoside binding heterocyclic compound binding carbohydrate derivative binding small molecule binding DNA binding nucleic acid binding cation binding ion binding metal ion binding	cellular component biogenesis ribosome biogenesis ribonucleoprotein complex biogenesis cellular process cellular component organization or biogenesis nucleolar large rRNA transcription by RNA polymerase I RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process cellular component biogenesis ribosome biogenesis ribonucleoprotein complex biogenesis cellular process cellular component organization or biogenesis nucleolar large rRNA transcription by RNA polymerase I RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process biosynthetic process transcription by RNA polymerase I rRNA transcription metabolic process macromolecule metabolic process rRNA metabolic process DNA-templated transcription termination termination of RNA polymerase I transcription transcription elongation by RNA polymerase I DNA-templated transcription elongation DNA-templated transcription initiation transcription initiation at RNA polymerase I promoter	membrane-bounded organelle protein-containing complex intracellular anatomical structure RNA polymerase I complex nucleus membrane-enclosed lumen nuclear protein-containing complex transferase complex intracellular organelle lumen intracellular organelle cellular anatomical structure membraneless organelle catalytic complex intracellular membraneless organelle membrane-bounded organelle protein-containing complex intracellular anatomical structure RNA polymerase I complex nucleus membrane-enclosed lumen nuclear protein-containing complex transferase complex intracellular organelle lumen intracellular organelle cellular anatomical structure membraneless organelle catalytic complex intracellular membraneless organelle intracellular membrane-bounded organelle nucleolus transferase complex, transferring phosphorus-containing groups nuclear DNA-directed RNA polymerase complex organelle lumen organelle RNA polymerase complex DNA-directed RNA polymerase complex intracellular protein-containing complex nuclear lumen
G [auth C], V [auth R]	DNA-DIRECTED RNA POLYMERASES I AND III SUBUNIT RPAC1	DNA binding binding nucleic acid binding protein binding protein dimerization activity	cellular component biogenesis ribosome biogenesis ribonucleoprotein complex biogenesis cellular process cellular component organization or biogenesis RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process tRNA metabolic process cellular component biogenesis ribosome biogenesis ribonucleoprotein complex biogenesis cellular process cellular component organization or biogenesis RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process tRNA metabolic process DNA-templated transcription nucleic acid biosynthetic process biosynthetic process tRNA transcription tRNA transcription by RNA polymerase III metabolic process macromolecule metabolic process transcription by RNA polymerase III nucleolar large rRNA transcription by RNA polymerase I transcription by RNA polymerase I rRNA transcription rRNA metabolic process DNA-templated transcription termination termination of RNA polymerase I transcription termination of RNA polymerase III transcription DNA-templated transcription initiation transcription initiation at RNA polymerase III promoter transcription elongation by RNA polymerase I DNA-templated transcription elongation transcription initiation at RNA polymerase I promoter	membrane-bounded organelle protein-containing complex intracellular anatomical structure RNA polymerase I complex nucleus membrane-enclosed lumen nuclear protein-containing complex transferase complex intracellular organelle lumen intracellular organelle cellular anatomical structure membraneless organelle catalytic complex intracellular membraneless organelle membrane-bounded organelle protein-containing complex intracellular anatomical structure RNA polymerase I complex nucleus membrane-enclosed lumen nuclear protein-containing complex transferase complex intracellular organelle lumen intracellular organelle cellular anatomical structure membraneless organelle catalytic complex intracellular membraneless organelle intracellular membrane-bounded organelle nucleolus transferase complex, transferring phosphorus-containing groups nuclear DNA-directed RNA polymerase complex organelle lumen organelle RNA polymerase complex DNA-directed RNA polymerase complex intracellular protein-containing complex nuclear lumen RNA polymerase III complex nucleoplasm
H [auth D], W [auth S]	DNA-DIRECTED RNA POLYMERASE I SUBUNIT RPA14	-	nucleolar large rRNA transcription by RNA polymerase I RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process biosynthetic process transcription by RNA polymerase I rRNA transcription nucleolar large rRNA transcription by RNA polymerase I RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process biosynthetic process transcription by RNA polymerase I rRNA transcription metabolic process cellular process macromolecule metabolic process rRNA metabolic process DNA-templated transcription termination termination of RNA polymerase I transcription transcription elongation by RNA polymerase I DNA-templated transcription elongation cellular component biogenesis ribosome biogenesis ribonucleoprotein complex biogenesis cellular component organization or biogenesis DNA-templated transcription initiation transcription initiation at RNA polymerase I promoter cellular component organization regulation of cellular component size biological regulation regulation of biological quality regulation of cell size regulation of anatomical structure size	membrane-bounded organelle protein-containing complex intracellular anatomical structure RNA polymerase I complex nucleus membrane-enclosed lumen nuclear protein-containing complex transferase complex intracellular organelle lumen intracellular organelle cellular anatomical structure membraneless organelle catalytic complex intracellular membraneless organelle membrane-bounded organelle protein-containing complex intracellular anatomical structure RNA polymerase I complex nucleus membrane-enclosed lumen nuclear protein-containing complex transferase complex intracellular organelle lumen intracellular organelle cellular anatomical structure membraneless organelle catalytic complex intracellular membraneless organelle intracellular membrane-bounded organelle nucleolus transferase complex, transferring phosphorus-containing groups nuclear DNA-directed RNA polymerase complex organelle lumen organelle RNA polymerase complex DNA-directed RNA polymerase complex intracellular protein-containing complex nuclear lumen
I [auth E], X [auth T]	DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 1	DNA binding binding nucleic acid binding	cellular component biogenesis ribosome biogenesis ribonucleoprotein complex biogenesis cellular process cellular component organization or biogenesis RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription cellular component biogenesis ribosome biogenesis ribonucleoprotein complex biogenesis cellular process cellular component organization or biogenesis RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process transcription by RNA polymerase II biosynthetic process metabolic process macromolecule metabolic process tRNA metabolic process tRNA transcription tRNA transcription by RNA polymerase III transcription by RNA polymerase III nucleolar large rRNA transcription by RNA polymerase I transcription by RNA polymerase I rRNA transcription rRNA metabolic process DNA-templated transcription termination termination of RNA polymerase I transcription RNA-templated transcription termination of RNA polymerase III transcription DNA-templated transcription initiation transcription initiation at RNA polymerase II promoter transcription initiation at RNA polymerase III promoter transcription elongation by RNA polymerase II DNA-templated transcription elongation transcription elongation by RNA polymerase I transcription initiation at RNA polymerase I promoter	membrane-bounded organelle protein-containing complex intracellular anatomical structure RNA polymerase I complex nucleus membrane-enclosed lumen nuclear protein-containing complex transferase complex intracellular organelle lumen intracellular organelle cellular anatomical structure membraneless organelle catalytic complex intracellular membraneless organelle membrane-bounded organelle protein-containing complex intracellular anatomical structure RNA polymerase I complex nucleus membrane-enclosed lumen nuclear protein-containing complex transferase complex intracellular organelle lumen intracellular organelle cellular anatomical structure membraneless organelle catalytic complex intracellular membraneless organelle intracellular membrane-bounded organelle nucleolus transferase complex, transferring phosphorus-containing groups nuclear DNA-directed RNA polymerase complex organelle lumen organelle RNA polymerase complex DNA-directed RNA polymerase complex intracellular protein-containing complex nuclear lumen RNA polymerase II, holoenzyme nucleoplasm RNA polymerase II, core complex RNA polymerase III complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth 1], P [auth L]	IPR006591	RNA polymerase archaeal subunit P/eukaryotic subunit RPABC4	Family
A [auth 1], P [auth L]	IPR029040	RNA polymerase subunit RPABC4/transcription elongation factor Spt4	Homologous Superfamily
A [auth 1], P [auth L]	IPR039747	DNA-directed RNA polymerases I, II, and III subunit RPABC4	Family
J [auth F], Y [auth U]	IPR028363	DNA-directed RNA polymerase, subunit RPB6	Family
J [auth F], Y [auth U]	IPR006111	Archaeal Rpo6/eukaryotic RPB6 RNA polymerase subunit	Family
J [auth F], Y [auth U]	IPR020708	DNA-directed RNA polymerase, 14-18kDa subunit, conserved site	Conserved Site
J [auth F], Y [auth U]	IPR006110	RNA polymerase, subunit omega/Rpo6/RPB6	Family
J [auth F], Y [auth U]	IPR036161	RPB6/omega subunit-like superfamily	Homologous Superfamily
AA [auth W], L [auth H]	IPR005570	DNA-directed RNA polymerases I, II, and III subunit RPABC3	Family
AA [auth W], L [auth H]	IPR012340	Nucleic acid-binding, OB-fold	Homologous Superfamily
BA [auth X], M [auth I]	IPR001529	DNA-directed RNA polymerase II subunit RPB9-like, zinc ribbon	Domain
BA [auth X], M [auth I]	IPR034004	Pol I subunit A12, C-terminal zinc ribbon	Domain
BA [auth X], M [auth I]	IPR012164	DNA-directed RNA polymerase subunit/transcription factor S	Family
BA [auth X], M [auth I]	IPR001222	Zinc finger, TFIIS-type	Domain
BA [auth X], M [auth I]	IPR019761	DNA-directed RNA polymerase M, 15kDa subunit, conserved site	Conserved Site
CA [auth Y], N [auth J]	IPR020789	RNA polymerases, subunit N, zinc binding site	Binding Site
CA [auth Y], N [auth J]	IPR000268	DNA-directed RNA polymerase subunit RPABC5/Rpb10	Family
CA [auth Y], N [auth J]	IPR023580	RNA polymerase subunit RPB10	Homologous Superfamily
DA [auth Z], O [auth K]	IPR009025	DNA-directed RNA polymerase, RBP11-like dimerisation domain	Domain
DA [auth Z], O [auth K]	IPR022905	DNA-directed RNA polymerase subunit Rpo11-like	Family
DA [auth Z], O [auth K]	IPR033898	DNA-directed RNA polymerases I and III subunit AC19	Family
DA [auth Z], O [auth K]	IPR036603	RNA polymerase, RBP11-like subunit	Homologous Superfamily
DA [auth Z], O [auth K]	IPR008193	DNA-directed RNA polymerase Rpb11, 13-16kDa subunit, conserved site	Conserved Site
B [auth 2], Q [auth M]	IPR009668	RNA polymerase I associated factor, A49-like	Family
C [auth 3], R [auth N]	IPR053263	Eukaryotic RPA34 RNA polymerase subunit	Family
C [auth 3], R [auth N]	IPR013240	DNA-directed RNA polymerase I, subunit RPA34	Family
D [auth 4], K [auth G], S [auth O], Z [auth V]	IPR045113	RNA polymerase subunit Rpb7-like	Family
D [auth 4], K [auth G], S [auth O], Z [auth V]	IPR005576	RNA polymerase Rpb7-like , N-terminal	Domain
D [auth 4], K [auth G], S [auth O], Z [auth V]	IPR036898	RNA polymerase Rpb7-like, N-terminal domain superfamily	Homologous Superfamily
D [auth 4], K [auth G], S [auth O], Z [auth V]	IPR012340	Nucleic acid-binding, OB-fold	Homologous Superfamily
D [auth 4], K [auth G], S [auth O], Z [auth V]	IPR041178	RPA43, OB domain	Domain
D [auth 4], K [auth G], S [auth O], Z [auth V]	IPR041901	Rpa43, N-terminal ribonucleoprotein (RNP) domain	Domain
E [auth A], T [auth P]	IPR007081	RNA polymerase Rpb1, domain 5	Domain
E [auth A], T [auth P]	IPR045867	DNA-directed RNA polymerase, subunit beta-prime	Family
E [auth A], T [auth P]	IPR047107	DNA-directed RNA pol I, largest subunit, C-terminal domain	Domain
E [auth A], T [auth P]	IPR007083	RNA polymerase Rpb1, domain 4	Domain
E [auth A], T [auth P]	IPR044893	RNA polymerase Rpb1, clamp domain superfamily	Homologous Superfamily
E [auth A], T [auth P]	IPR006592	RNA polymerase, N-terminal	Domain
E [auth A], T [auth P]	IPR007066	RNA polymerase Rpb1, domain 3	Domain
E [auth A], T [auth P]	IPR042102	RNA polymerase Rpb1, domain 3 superfamily	Homologous Superfamily
E [auth A], T [auth P]	IPR000722	RNA polymerase, alpha subunit	Domain
E [auth A], T [auth P]	IPR038120	RNA polymerase Rpb1, funnel domain superfamily	Homologous Superfamily
E [auth A], T [auth P]	IPR015699	DNA-directed RNA pol I, largest subunit, N-terminal domain	Domain
E [auth A], T [auth P]	IPR007080	RNA polymerase Rpb1, domain 1	Domain
F [auth B], U [auth Q]	IPR009674	DNA-directed RNA polymerase I subunit RPA2, domain 4	Domain
F [auth B], U [auth Q]	IPR007120	DNA-directed RNA polymerase, subunit 2, hybrid-binding domain	Domain
F [auth B], U [auth Q]	IPR007121	RNA polymerase, beta subunit, conserved site	Conserved Site
F [auth B], U [auth Q]	IPR014724	RNA polymerase Rpb2, OB-fold	Homologous Superfamily
F [auth B], U [auth Q]	IPR007642	RNA polymerase Rpb2, domain 2	Domain
F [auth B], U [auth Q]	IPR015712	DNA-directed RNA polymerase, subunit 2	Family
F [auth B], U [auth Q]	IPR037033	DNA-directed RNA polymerase, subunit 2, hybrid-binding domain superfamily	Homologous Superfamily
F [auth B], U [auth Q]	IPR037034	RNA polymerase Rpb2, domain 2 superfamily	Homologous Superfamily
F [auth B], U [auth Q]	IPR007645	RNA polymerase Rpb2, domain 3	Domain
F [auth B], U [auth Q]	IPR007644	RNA polymerase, beta subunit, protrusion	Domain
F [auth B], U [auth Q]	IPR007641	RNA polymerase Rpb2, domain 7	Domain
G [auth C], V [auth R]	IPR011263	DNA-directed RNA polymerase, RpoA/D/Rpb3-type	Domain
G [auth C], V [auth R]	IPR022842	DNA-directed RNA polymerase subunit Rpo3/Rpb3/RPAC1	Family
G [auth C], V [auth R]	IPR033901	DNA-directed RNA polymerases I and III subunit AC40	Family
G [auth C], V [auth R]	IPR001514	DNA-directed RNA polymerase, 30-40kDa subunit, conserved site	Conserved Site
G [auth C], V [auth R]	IPR036603	RNA polymerase, RBP11-like subunit	Homologous Superfamily
G [auth C], V [auth R]	IPR011262	DNA-directed RNA polymerase, insert domain	Domain
G [auth C], V [auth R]	IPR050518	Archaeal Rpo3/Eukaryotic RPB3 RNA Polymerase Subunit	Family
G [auth C], V [auth R]	IPR036643	DNA-directed RNA polymerase, insert domain superfamily	Homologous Superfamily
H [auth D], W [auth S]	IPR013239	RNA polymerase I, subunit Rpa14, fungi	Family
I [auth E], X [auth T]	IPR036710	RNA polymerase Rpb5, N-terminal domain superfamily	Homologous Superfamily
I [auth E], X [auth T]	IPR014381	DNA-directed RNA polymerase subunit Rpo5/Rpb5	Family
I [auth E], X [auth T]	IPR035913	RPB5-like RNA polymerase subunit superfamily	Homologous Superfamily
I [auth E], X [auth T]	IPR000783	RNA polymerase, subunit H/Rpb5 C-terminal	Domain
I [auth E], X [auth T]	IPR020608	RNA polymerase, subunit H/Rpb5, conserved site	Conserved Site
I [auth E], X [auth T]	IPR005571	RNA polymerase, Rpb5, N-terminal	Domain