7AP9

Atomic structure of the poxvirus initially transcribing complex in conformation 3

External Resource: Annotation

Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	RNA_pol_Rpb2_6_3rd_2	e7ap9B2	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: double psi	F: RNA_pol_Rpb2_6_3rd_2	ECOD (1.6)
B	RNA_pol_Rpb2_6_2nd_1	e7ap9B6	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)
B	RNA_pol_Rpb2_3	e7ap9B1	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)
B	F_UNCLASSIFIED	e7ap9B5	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: F_UNCLASSIFIED	ECOD (1.6)
B	RNA_pol_Rpb2_45_1	e7ap9B4	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)
B	RNA_pol_Rpb2_7	e7ap9B3	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)
B	F_UNCLASSIFIED	e7ap9B7	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: F_UNCLASSIFIED	ECOD (1.6)
H [auth J]	F_UNCLASSIFIED	e7ap9J1	A: alpha arrays	X: HTH	H: RPB10 (From Topology)	T: RPB10	F: F_UNCLASSIFIED	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	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
A	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
A	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
A	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
A	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
B	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
B	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
B	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
B	PF04567	RNA polymerase Rpb2, domain 5 (RNA_pol_Rpb2_5)	RNA polymerase Rpb2, 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). Domain 5, is also known as the external 2 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). Domain 5, is also known as the external 2 domain [1].	Domain
B	PF12415	Poxvirus DNA dependent RNA polymerase (rpo132)	Poxvirus DNA dependent RNA polymerase	-	Family
C	PF03396	Poxvirus DNA-directed RNA polymerase, 35 kD subunit (Pox_RNA_pol_35)	Poxvirus DNA-directed RNA polymerase, 35 kD subunit	-	Family
D [auth E]	PF05273	Poxvirus RNA polymerase 22 kDa subunit (Pox_RNA_Pol_22)	Poxvirus RNA polymerase 22 kDa subunit	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	DNA-directed RNA polymerase 147 kDa polypeptide	DNA binding binding nucleic acid binding	-	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
B	DNA-directed RNA polymerase	DNA binding binding nucleic acid binding ribonucleoside binding nucleoside binding heterocyclic compound binding carbohydrate derivative binding small molecule binding cation binding ion binding metal ion binding	-	virion component 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
C	DNA-directed RNA polymerase 35 kDa subunit	DNA binding binding nucleic acid binding	viral gene expression viral process viral transcription	virion component 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
D [auth E]	DNA-directed RNA polymerase subunit	DNA binding binding nucleic acid binding	viral gene expression viral process viral transcription	virion component 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
E [auth F]	DNA-directed RNA polymerase 19 kDa subunit	DNA binding binding nucleic acid binding	-	virion component 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
F [auth G]	DNA-directed RNA polymerase 18 kDa subunit	DNA binding binding nucleic acid binding	viral gene expression viral process viral transcription	virion component 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
G [auth I]	Protein H4	transcription regulator activity DNA-binding transcription factor activity	RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression DNA-templated transcription termination macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process biosynthetic process metabolic process cellular process RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression DNA-templated transcription termination macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process biosynthetic process metabolic process cellular process macromolecule metabolic process	virion component
H [auth J]	DNA-directed RNA polymerase 7 kDa subunit	DNA binding binding nucleic acid binding	-	virion component 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
I [auth P]	RNA (5'-R(PAPUPAPAP*A)-3')	-	-	-
J [auth S]	DNA-directed RNA polymerase 30 kDa polypeptide	DNA binding binding nucleic acid binding cation binding transition metal ion binding zinc ion binding ion binding metal ion binding small molecule binding	-	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
K [auth T]	Synthetic promoter DNA oligomer, template strand	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR007066	RNA polymerase Rpb1, domain 3	Domain
A	IPR007081	RNA polymerase Rpb1, domain 5	Domain
A	IPR045867	DNA-directed RNA polymerase, subunit beta-prime	Family
A	IPR007083	RNA polymerase Rpb1, domain 4	Domain
A	IPR000722	RNA polymerase, alpha subunit	Domain
A	IPR044893	RNA polymerase Rpb1, clamp domain superfamily	Homologous Superfamily
A	IPR038120	RNA polymerase Rpb1, funnel domain superfamily	Homologous Superfamily
A	IPR006592	RNA polymerase, N-terminal	Domain
A	IPR007080	RNA polymerase Rpb1, domain 1	Domain
B	IPR015712	DNA-directed RNA polymerase, subunit 2	Family
B	IPR037033	DNA-directed RNA polymerase, subunit 2, hybrid-binding domain superfamily	Homologous Superfamily
B	IPR007120	DNA-directed RNA polymerase, subunit 2, hybrid-binding domain	Domain
B	IPR007121	RNA polymerase, beta subunit, conserved site	Conserved Site
B	IPR007645	RNA polymerase Rpb2, domain 3	Domain
B	IPR024390	RNA polymerase, 132kDa subunit, poxvirus-type	Family
B	IPR007647	RNA polymerase Rpb2, domain 5	Domain
B	IPR014724	RNA polymerase Rpb2, OB-fold	Homologous Superfamily
B	IPR007641	RNA polymerase Rpb2, domain 7	Domain
C	IPR005059	DNA-directed RNA polymerase, 35kDa subunit, poxviral	Family
D [auth E]	IPR007937	RNA polymerase, 22kDa subunit, poxviral	Family
E [auth F]	IPR007984	DNA-directed RNA polymerase, 19kDa subunit, poxviral	Family
E [auth F]	IPR036161	RPB6/omega subunit-like superfamily	Homologous Superfamily
F [auth G]	IPR004973	DNA-directed RNA polymerase, 18kDa subunit, poxviral	Family
G [auth I]	IPR004974	RNA polymerase-associated transcription specificity factor Rap94	Family
H [auth J]	IPR008448	DNA-directed RNA polymerase, 7kDa polypeptide, chordopoxviral	Family
J [auth S]	IPR001222	Zinc finger, TFIIS-type	Domain
J [auth S]	IPR009162	RNA polymerase, 30kDa subunit, chordopox-type	Family
J [auth S]	IPR024394	RNA polymerase, 30kDa subunit, chordopox-type, N-terminal	Domain

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.

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7AP9

Atomic structure of the poxvirus initially transcribing complex in conformation 3

External Resource: Annotation

Domain Annotation: ECOD Classification ECOD Database Homepage

Protein Family Annotation Pfam Database Homepage

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

InterPro: Protein Family Classification InterPro Database Homepage