1S76

T7 RNA polymerase alpha beta methylene ATP elongation complex

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)
D	d1s76d_	Multi-domain proteins (alpha and beta)	DNA/RNA polymerases	DNA/RNA polymerases	T7 RNA polymerase	T7 RNA polymerase	(Escherichia phage T7 ) [TaxId: 10760 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
D	SCOP2B Superfamily	Nucleotide cyclase/DNA polymerase palm domain-like	8037503	3001272	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)
D	RPOL_N_1	e1s76D4	A: alpha arrays	X: HTH	H: HTH	T: HTH in T7 RNA polymerase	F: RPOL_N_1	ECOD (1.6)
D	RNA_pol_2nd	e1s76D5	A: alpha arrays	X: helical bundle in Bacillus stearothermophilus-like DNA polymerase I (From Topology)	H: helical bundle in Bacillus stearothermophilus-like DNA polymerase I (From Topology)	T: helical bundle in Bacillus stearothermophilus-like DNA polymerase I	F: RNA_pol_2nd	ECOD (1.6)
D	RNA_pol_1st	e1s76D1	A: alpha arrays	X: inserted helical bundle subdomain in T7 RNA polymerase (From Topology)	H: inserted helical bundle subdomain in T7 RNA polymerase (From Topology)	T: inserted helical bundle subdomain in T7 RNA polymerase	F: RNA_pol_1st	ECOD (1.6)
D	KOG1038,RPOL_N	e1s76D6	A: alpha bundles	X: fingers domain in bacteriophage RB69-like DNA polymerase I (From Topology)	H: fingers domain in bacteriophage RB69-like DNA polymerase I (From Topology)	T: fingers domain in bacteriophage RB69-like DNA polymerase I	F: KOG1038,RPOL_N	ECOD (1.6)
D	RNA_pol_3rd	e1s76D3	A: a+b two layers	X: Alpha-beta plaits	H: Adenylyl and guanylyl cyclase catalytic domain-like	T: Adenylyl and guanylyl cyclase catalytic domain-like	F: RNA_pol_3rd	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D	1.10.1320.10	Mainly Alpha	Orthogonal Bundle	T7 RNA polymerase	domain 1	CATH (4.3.0)
D	1.10.287.260	Mainly Alpha	Orthogonal Bundle	Helix Hairpins		CATH (4.3.0)
D	3.30.70.370	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)
D	1.10.287.280	Mainly Alpha	Orthogonal Bundle	Helix Hairpins		CATH (4.3.0)
D	1.10.150.20	Mainly Alpha	Orthogonal Bundle	DNA polymerase	domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
D	PF14700	DNA-directed RNA polymerase N-terminal (RPOL_N)	DNA-directed RNA polymerase N-terminal	This is the N-terminal domain of DNA-directed RNA polymerase. This domain has a role in interaction with regions of upstream promoter DNA and the nascent RNA chain, leading to the processivity of the enzyme [1]. In order to make mRNA transcripts the ...	This is the N-terminal domain of DNA-directed RNA polymerase. This domain has a role in interaction with regions of upstream promoter DNA and the nascent RNA chain, leading to the processivity of the enzyme [1]. In order to make mRNA transcripts the RNA polymerase undergoes a transition from the initiation phase (which only makes short fragments of RNA) to an elongation phase. This domain undergoes a structural change in the transition from initiation to elongation phase. The structural change results in abolition of the promoter binding site, creation of a channel accommodating the heteroduplex in the active site and formation of an exit tunnel which the RNA transcript passes through after peeling off the heteroduplex [2].	Domain
D	PF00940	DNA-dependent RNA polymerase (RNA_pol)	DNA-dependent RNA polymerase	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth T]	DNA (5'-D(PGPCPCPGPTPGPCPGPCPAPTPTPCPGPCPCPGPTPGPTP*T)-3')	-	-	-
B [auth N]	DNA (5'-D(PTPTPTPAPCPGPTPTPGPCPGPCPAPCPGPGP*C)-3')	-	-	-
C [auth R]	RNA (5'-R(PAPCPAPCPGPGPCPGP*A)-3')	-	-	-
D	DNA-directed RNA polymerase	DNA binding binding nucleic acid binding	viral gene expression DNA-templated viral transcription viral process viral transcription	transferase complex, transferring phosphorus-containing groups protein-containing complex catalytic complex RNA polymerase complex DNA-directed RNA polymerase complex transferase complex intracellular protein-containing complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
D	IPR029262	DNA-directed RNA polymerase, N-terminal	Domain
D	IPR002092	DNA-directed RNA polymerase, phage-type	Family
D	IPR043502	DNA/RNA polymerase superfamily	Homologous Superfamily
D	IPR024075	DNA-directed RNA polymerase, helix hairpin domain superfamily	Homologous Superfamily
D	IPR046950	DNA-directed RNA polymerase, C-terminal domain, phage-type	Domain
D	IPR037159	DNA-directed RNA polymerase, N-terminal domain superfamily	Homologous Superfamily

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.