7X74 | pdb_00007x74

Cryo-EM structure of Streptomyces coelicolor transcription initial complex with two Zur dimers.

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
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)
J [auth N]	7tm_1	e7x74N1	A: a/b three-layered sandwiches	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: 7tm_1	ECOD (v294.1)
I [auth M]	7tm_1	e7x74M1	A: a/b three-layered sandwiches	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: 7tm_1	ECOD (v294.1)
H	7tm_1	e7x74H1	A: a/b three-layered sandwiches	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: 7tm_1	ECOD (v294.1)
G	7tm_1	e7x74G1	A: a/b three-layered sandwiches	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: 7tm_1	ECOD (v294.1)
F	7tm_1	e7x74F1	A: a/b three-layered sandwiches	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: 7tm_1	ECOD (v294.1)
E	7tm_1	e7x74E1	A: a/b three-layered sandwiches	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: 7tm_1	ECOD (v294.1)
C	7tm_1	e7x74C1	A: a/b three-layered sandwiches	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: 7tm_1	ECOD (v294.1)
B	7tm_1	e7x74B1	A: a/b three-layered sandwiches	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: 7tm_1	ECOD (v294.1)
A	7tm_1	e7x74A1	A: a/b three-layered sandwiches	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: 7tm_1	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D	1.10.274.100	Mainly Alpha	Orthogonal Bundle	Enzyme I	Chain A, domain 2	CATH (utative)
D	1.10.132.30	Mainly Alpha	Orthogonal Bundle	Topoisomerase I	Chain A, domain 4	CATH (utative)
C	3.90.1110.10	Alpha Beta	Alpha-Beta Complex	Dna-directed Rna Polymerase Ii 140kd Polypeptide	Chain: B	CATH (utative)
C	2.40.50.150	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)	RNA polymerase II, Rpb2 subunit, wall domain	CATH (utative)
B	2.170.120.12	Mainly Beta	Beta Complex	RNA Polymerase Alpha Subunit	Chain A, domain 2	CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
G, H, I [auth M], J [auth N]	PF01475	Ferric uptake regulator family (FUR)	Ferric uptake regulator family	-	Family
F	PF04539	Sigma-70 region 3 (Sigma70_r3)	Sigma-70 region 3	-	Family
F	PF00140	Sigma-70 factor, region 1.2 (Sigma70_r1_2)	Sigma-70 factor, region 1.2	-	Family
F	PF04542	Sigma-70 region 2 (Sigma70_r2)	Sigma-70 region 2	Region 2 of sigma-70 is the most conserved region of the entire protein. All members of this class of sigma-factor contain region 2. The high conservation is due to region 2 containing both the -10 promoter recognition helix and the primary core RNA ...	Region 2 of sigma-70 is the most conserved region of the entire protein. All members of this class of sigma-factor contain region 2. The high conservation is due to region 2 containing both the -10 promoter recognition helix and the primary core RNA polymerase binding determinant. The core binding helix, interacts with the clamp domain of the largest polymerase subunit, beta prime [1,2]. The aromatic residues of the recognition helix, found at the C-terminus of this domain are though to mediate strand separation, thereby allowing transcription initiation [1,2].	Domain
F	PF04545	Sigma-70, region 4 (Sigma70_r4)	Sigma-70, region 4	Region 4 of sigma-70 like sigma-factors are involved in binding to the -35 promoter element via a helix-turn-helix motif [1]. Due to the way Pfam works, the threshold has been set artificially high to prevent overlaps with other helix-turn-helix fami ...	Region 4 of sigma-70 like sigma-factors are involved in binding to the -35 promoter element via a helix-turn-helix motif [1]. Due to the way Pfam works, the threshold has been set artificially high to prevent overlaps with other helix-turn-helix families. Therefore there are many false negatives.	Domain
E	PF01192	RNA polymerase Rpb6 (RNA_pol_Rpb6)	RNA polymerase Rpb6	-	Family
D	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
D	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
D	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
D	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
C	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
C	PF10385	RNA polymerase beta subunit external 1 domain (RNA_pol_Rpb2_45)	RNA polymerase beta subunit external 1 domain	RNA polymerases catalyse the DNA-dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared with three in eukaryotes (not including mitochondrial or chloroplast polymerases). This domain in prokaryotes spans the gap between ...	RNA polymerases catalyse the DNA-dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared with three in eukaryotes (not including mitochondrial or chloroplast polymerases). This domain in prokaryotes spans the gap between domains 4 and 5 of the yeast protein. It is also known as the external 1 region of the polymerase and is bound in association with the external 2 region [1].	Domain
C	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
C	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
C	PF04563	RNA polymerase beta subunit (RNA_pol_Rpb2_1)	RNA polymerase beta subunit	-	Family
C	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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
M [auth Q]	RNA	-	-	-
L [auth P]	DNA (84-MER)	-	-	-
K [auth O]	DNA (84-MER)	-	-	-
G, H, I [auth M], J [auth N]	Putative metal uptake regulation protein	DNA binding sequence-specific DNA binding sequence-specific double-stranded DNA binding transcription cis-regulatory region binding binding double-stranded DNA binding nucleic acid binding transcription regulatory region nucleic acid binding transcription regulator activity DNA-binding transcription factor activity cation binding transition metal ion binding zinc ion binding ion binding DNA binding sequence-specific DNA binding sequence-specific double-stranded DNA binding transcription cis-regulatory region binding binding double-stranded DNA binding nucleic acid binding transcription regulatory region nucleic acid binding transcription regulator activity DNA-binding transcription factor activity cation binding transition metal ion binding zinc ion binding ion binding metal ion binding small molecule binding DNA-binding transcription repressor activity	regulation of cellular process negative regulation of biological process RNA metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process regulation of RNA metabolic process 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 regulation of cellular process negative regulation of biological process RNA metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process regulation of RNA metabolic process 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 negative regulation of DNA-templated transcription regulation of biological process negative regulation of metabolic process biological regulation primary metabolic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of gene expression biosynthetic process negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process metabolic process cellular process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription regulation of metabolic process negative regulation of RNA metabolic process regulation of secondary metabolite biosynthetic process secondary metabolic process regulation of secondary metabolic process secondary metabolite biosynthetic process	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol protein-containing complex protein-DNA complex
F	RNA polymerase principal sigma factor HrdB	DNA binding sequence-specific DNA binding sequence-specific double-stranded DNA binding transcription cis-regulatory region binding binding double-stranded DNA binding nucleic acid binding transcription regulatory region nucleic acid binding DNA-directed RNA polymerase activity 5'-3' RNA polymerase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid RNA polymerase activity transferase activity DNA binding sequence-specific DNA binding sequence-specific double-stranded DNA binding transcription cis-regulatory region binding binding double-stranded DNA binding nucleic acid binding transcription regulatory region nucleic acid binding DNA-directed RNA polymerase activity 5'-3' RNA polymerase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid RNA polymerase activity transferase activity nucleotidyltransferase activity catalytic activity transferase activity, transferring phosphorus-containing groups transcription regulator activity DNA-binding transcription factor activity sigma factor activity basal transcription machinery binding protein binding bacterial-type RNA polymerase holo enzyme binding	regulation of cellular process RNA metabolic process regulation of primary metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process DNA-templated transcription regulation of RNA metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of biosynthetic process regulation of biological process biological regulation primary metabolic process regulation of cellular process RNA metabolic process regulation of primary metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process DNA-templated transcription regulation of RNA metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of biosynthetic process regulation of biological process biological regulation primary metabolic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of gene expression biosynthetic process cellular process metabolic process regulation of macromolecule biosynthetic process regulation of DNA-templated transcription macromolecule metabolic process regulation of metabolic process DNA-templated transcription initiation	protein-containing complex sigma factor antagonist complex transcription regulator complex cellular anatomical structure intracellular anatomical structure cytoplasm
E	DNA-directed RNA polymerase subunit omega	DNA binding binding nucleic acid binding RNA polymerase binding protein binding bacterial-type RNA polymerase core enzyme binding RNA polymerase core enzyme binding enzyme binding DNA-directed RNA polymerase activity 5'-3' RNA polymerase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid RNA polymerase activity transferase activity DNA binding binding nucleic acid binding RNA polymerase binding protein binding bacterial-type RNA polymerase core enzyme binding RNA polymerase core enzyme binding enzyme binding DNA-directed RNA polymerase activity 5'-3' RNA polymerase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid RNA polymerase activity transferase activity nucleotidyltransferase activity catalytic activity transferase activity, transferring phosphorus-containing groups	RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process DNA-templated transcription initiation 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 macromolecule biosynthetic process DNA-templated transcription initiation 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	protein-containing complex intracellular anatomical structure catalytic complex transferase complex transferase complex, transferring phosphorus-containing groups cellular anatomical structure cytosolic DNA-directed RNA polymerase complex RNA polymerase complex DNA-directed RNA polymerase complex cytoplasm cytosol intracellular protein-containing complex
D	DNA-directed RNA polymerase subunit beta'	cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding DNA binding nucleic acid binding DNA-directed RNA polymerase activity 5'-3' RNA polymerase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid RNA polymerase activity transferase activity cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding DNA binding nucleic acid binding DNA-directed RNA polymerase activity 5'-3' RNA polymerase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid RNA polymerase activity transferase activity nucleotidyltransferase activity catalytic activity transferase activity, transferring phosphorus-containing groups transition metal ion binding zinc ion binding	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 metabolic process cellular process macromolecule metabolic process	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 subunit beta	DNA binding binding nucleic acid binding DNA-directed RNA polymerase activity 5'-3' RNA polymerase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid RNA polymerase activity transferase activity nucleotidyltransferase activity catalytic activity transferase activity, transferring phosphorus-containing groups ribonucleoside binding nucleoside binding DNA binding binding nucleic acid binding DNA-directed RNA polymerase activity 5'-3' RNA polymerase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid RNA polymerase activity transferase activity nucleotidyltransferase activity catalytic activity transferase activity, transferring phosphorus-containing groups ribonucleoside binding nucleoside binding heterocyclic compound binding carbohydrate derivative binding small molecule binding	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 metabolic process cellular process macromolecule metabolic process	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
A, B	DNA-directed RNA polymerase subunit alpha	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
G, H, I [auth M], J [auth N]	IPR043135	Ferric-uptake regulator, C-terminal domain	Homologous Superfamily
G, H, I [auth M], J [auth N]	IPR036388	Winged helix-like DNA-binding domain superfamily	Homologous Superfamily
G, H, I [auth M], J [auth N]	IPR036390	Winged helix DNA-binding domain superfamily	Homologous Superfamily
G, H, I [auth M], J [auth N]	IPR002481	Ferric-uptake regulator	Family
F	IPR007627	RNA polymerase sigma-70 region 2	Domain
F	IPR000943	RNA polymerase sigma-70	Domain
F	IPR013325	RNA polymerase sigma factor, region 2	Homologous Superfamily
F	IPR013324	RNA polymerase sigma factor, region 3/4-like	Homologous Superfamily
F	IPR036388	Winged helix-like DNA-binding domain superfamily	Homologous Superfamily
F	IPR012760	RNA polymerase sigma factor RpoD, C-terminal	Domain
F	IPR009042	RNA polymerase sigma-70 region 1.2	Domain
F	IPR007630	RNA polymerase sigma-70 region 4	Domain
F	IPR014284	RNA polymerase sigma-70-like domain	Domain
F	IPR007624	RNA polymerase sigma-70 region 3	Domain
F	IPR028630	RNA polymerase sigma factor RpoD	Family
F	IPR050239	Sigma-70 factor family, RNA polymerase initiation factors	Family
E	IPR036161	RPB6/omega subunit-like superfamily	Homologous Superfamily
E	IPR003716	DNA-directed RNA polymerase, omega subunit	Family
E	IPR006110	RNA polymerase, subunit omega/Rpo6/RPB6	Family
D	IPR007066	RNA polymerase Rpb1, domain 3	Domain
D	IPR007081	RNA polymerase Rpb1, domain 5	Domain
D	IPR045867	DNA-directed RNA polymerase, subunit beta-prime	Family
D	IPR012754	DNA-directed RNA polymerase, subunit beta-prime, bacterial type	Family
D	IPR042102	RNA polymerase Rpb1, domain 3 superfamily	Homologous Superfamily
D	IPR007083	RNA polymerase Rpb1, domain 4	Domain
D	IPR000722	RNA polymerase, alpha subunit	Domain
D	IPR044893	RNA polymerase Rpb1, clamp domain superfamily	Homologous Superfamily
D	IPR038120	RNA polymerase Rpb1, funnel domain superfamily	Homologous Superfamily
D	IPR006592	RNA polymerase, N-terminal	Domain
D	IPR007080	RNA polymerase Rpb1, domain 1	Domain
C	IPR007642	RNA polymerase Rpb2, domain 2	Domain
C	IPR015712	DNA-directed RNA polymerase, subunit 2	Family
C	IPR037033	DNA-directed RNA polymerase, subunit 2, hybrid-binding domain superfamily	Homologous Superfamily
C	IPR042107	DNA-directed RNA polymerase, beta subunit, external 1 domain superfamily	Homologous Superfamily
C	IPR037034	RNA polymerase Rpb2, domain 2 superfamily	Homologous Superfamily
C	IPR007120	DNA-directed RNA polymerase, subunit 2, hybrid-binding domain	Domain
C	IPR007121	RNA polymerase, beta subunit, conserved site	Conserved Site
C	IPR007645	RNA polymerase Rpb2, domain 3	Domain
C	IPR014724	RNA polymerase Rpb2, OB-fold	Homologous Superfamily
C	IPR019462	DNA-directed RNA polymerase, beta subunit, external 1 domain	Domain
C	IPR010243	DNA-directed RNA polymerase beta subunit, bacterial-type	Family
C	IPR007644	RNA polymerase, beta subunit, protrusion	Domain
C	IPR007641	RNA polymerase Rpb2, domain 7	Domain