Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
A [auth C]SCOP2B SuperfamilyTwo-barrel nucleic acid polymerases 8039611 3001330 SCOP2B (2022-06-29)
C [auth A]SCOP2B SuperfamilyRBP11-like subunits of RNA polymerase 8039604 3001655 SCOP2B (2022-06-29)
C [auth A]SCOP2B SuperfamilyInsert subdomain of RNA polymerase alpha subunit 8039607 3001500 SCOP2B (2022-06-29)
D [auth B]SCOP2B SuperfamilyInsert subdomain of RNA polymerase alpha subunit 8039607 3001500 SCOP2B (2022-06-29)
D [auth B]SCOP2B SuperfamilyRBP11-like subunits of RNA polymerase 8039604 3001655 SCOP2B (2022-06-29)
ESCOP2B SuperfamilyRPB6/omega subunit-like 8039612 3000189 SCOP2B (2022-06-29)
B [auth D]SCOP2B SuperfamilyTwo-barrel nucleic acid polymerases 8039613 3001330 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
A [auth C]RNA_pol_Rpb2_6_3rd_3e6asgC7 A: beta barrelsX: cradle loop barrelH: RIFT-relatedT: double psiF: RNA_pol_Rpb2_6_3rd_3ECOD (1.6)
A [auth C]RNA_pol_Rpb2_6_1st_1e6asgC5 A: a+b complex topologyX: alpha/beta-Hammerhead/Barrel-sandwich hybridH: alpha/beta-Hammerhead/Barrel-sandwich hybridT: Single hybrid motifF: RNA_pol_Rpb2_6_1st_1ECOD (1.6)
A [auth C]RNA_pol_Rpb2_6_2nde6asgC4 A: a+b complex topologyX: alpha/beta-Hammerhead/Barrel-sandwich hybridH: alpha/beta-Hammerhead/Barrel-sandwich hybridT: Single hybrid motifF: RNA_pol_Rpb2_6_2ndECOD (1.6)
A [auth C]RNA_pol_Rpb2_3e6asgC6 A: a+b complex topologyX: 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-polymeraseF: RNA_pol_Rpb2_3ECOD (1.6)
A [auth C]RNA_pol_Rpb2_1e6asgC8 A: a+b complex topologyX: 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-polymeraseF: RNA_pol_Rpb2_1ECOD (1.6)
A [auth C]RNA_pol_Rpb2_45e6asgC2 A: a+b complex topologyX: 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-polymeraseF: RNA_pol_Rpb2_45ECOD (1.6)
A [auth C]RNA_pol_Rpb2_7e6asgC1 A: a+b complex topologyX: 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-polymeraseF: RNA_pol_Rpb2_7ECOD (1.6)
C [auth A]RNA_pol_Le6asgA2 A: a+b two layersX: DCoH-likeH: RBP11-like subunits of RNA polymerase (From Topology)T: RBP11-like subunits of RNA polymeraseF: RNA_pol_LECOD (1.6)
C [auth A]RNA_pol_A_bace6asgA1 A: a+b complex topologyX: Ribosomal protein TL5/L25 C-terminal domain-likeH: Insert subdomain of RNA polymerase alpha subunit (From Topology)T: Insert subdomain of RNA polymerase alpha subunitF: RNA_pol_A_bacECOD (1.6)
D [auth B]RNA_pol_Le6asgB1 A: a+b two layersX: DCoH-likeH: RBP11-like subunits of RNA polymerase (From Topology)T: RBP11-like subunits of RNA polymeraseF: RNA_pol_LECOD (1.6)
D [auth B]RNA_pol_A_bace6asgB2 A: a+b complex topologyX: Ribosomal protein TL5/L25 C-terminal domain-likeH: Insert subdomain of RNA polymerase alpha subunit (From Topology)T: Insert subdomain of RNA polymerase alpha subunitF: RNA_pol_A_bacECOD (1.6)
ERNA_pol_Rpb6e6asgE1 A: alpha arraysX: RPB6/omega subunit-like (From Homology)H: RPB6/omega subunit-likeT: RNA polymerase omega subunitF: RNA_pol_Rpb6ECOD (1.6)
B [auth D]RNA_pol_Rpb1_2e6asgD9 A: beta barrelsX: cradle loop barrelH: RIFT-relatedT: double psiF: RNA_pol_Rpb1_2ECOD (1.6)
B [auth D]PRK00566_1ste6asgD4 A: alpha arraysX: inserted helical subdomain in bacterial RNA-polymerase beta-prime subunit (From Topology)H: inserted helical subdomain in bacterial RNA-polymerase beta-prime subunit (From Topology)T: inserted helical subdomain in bacterial RNA-polymerase beta-prime subunitF: PRK00566_1stECOD (1.6)
B [auth D]PRK00566_2nde6asgD2 A: a+b two layersX: 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-polymeraseF: PRK00566_2ndECOD (1.6)
B [auth D]Biotin_lipoyl_2_like_1e6asgD8 A: a+b complex topologyX: alpha/beta-Hammerhead/Barrel-sandwich hybridH: alpha/beta-Hammerhead/Barrel-sandwich hybridT: Single hybrid motifF: Biotin_lipoyl_2_like_1ECOD (1.6)
B [auth D]RnfC_N_like_1e6asgD1 A: a+b complex topologyX: alpha/beta-Hammerhead/Barrel-sandwich hybridH: alpha/beta-Hammerhead/Barrel-sandwich hybridT: Single hybrid motifF: RnfC_N_like_1ECOD (1.6)
B [auth D]RNA_pol_Rpb1_5_2nde6asgD3 A: a+b complex topologyX: alpha/beta-Hammerhead/Barrel-sandwich hybridH: alpha/beta-Hammerhead/Barrel-sandwich hybridT: Single hybrid motifF: RNA_pol_Rpb1_5_2ndECOD (1.6)
B [auth D]RNA_pol_Rpb1_1e6asgD5 A: a+b complex topologyX: 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 subunitF: RNA_pol_Rpb1_1ECOD (1.6)
B [auth D]RNA_pol_Rpb1_5_3rde6asgD10 A: a+b complex topologyX: 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 subunitF: RNA_pol_Rpb1_5_3rdECOD (1.6)
B [auth D]RNA_pol_Rpb1_4e6asgD7 A: a+b complex topologyX: 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 subunitF: RNA_pol_Rpb1_4ECOD (1.6)
B [auth D]RNA_pol_Rpb1_3e6asgD6 A: a+b complex topologyX: 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 subunitF: RNA_pol_Rpb1_3ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A [auth C]PF04561RNA polymerase Rpb2, domain 2 (RNA_pol_Rpb2_2)RNA polymerase Rpb2, domain 2RNA 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 ...Domain
A [auth C]PF10385RNA polymerase beta subunit external 1 domain (RNA_pol_Rpb2_45)RNA polymerase beta subunit external 1 domainRNA 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 ...Domain
A [auth C]PF04560RNA polymerase Rpb2, domain 7 (RNA_pol_Rpb2_7)RNA polymerase Rpb2, domain 7RNA 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 ...Domain
A [auth C]PF04565RNA polymerase Rpb2, domain 3 (RNA_pol_Rpb2_3)RNA polymerase Rpb2, domain 3RNA 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 ...Domain
A [auth C]PF04563RNA polymerase beta subunit (RNA_pol_Rpb2_1)RNA polymerase beta subunit- Family
A [auth C]PF00562RNA polymerase Rpb2, domain 6 (RNA_pol_Rpb2_6)RNA polymerase Rpb2, domain 6RNA 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 ...Domain
C [auth A],
D [auth B]
PF01193RNA polymerase Rpb3/Rpb11 dimerisation domain (RNA_pol_L)RNA polymerase Rpb3/Rpb11 dimerisation domainThe 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 ...Domain
C [auth A],
D [auth B]
PF01000RNA polymerase Rpb3/RpoA insert domain (RNA_pol_A_bac)RNA polymerase Rpb3/RpoA insert domainMembers of this family include: alpha subunit from eubacteria alpha subunits from chloroplasts Rpb3 subunits from eukaryotes RpoD subunits from archaeal Domain
PF01192RNA polymerase Rpb6 (RNA_pol_Rpb6)RNA polymerase Rpb6- Family
B [auth D]PF00623RNA polymerase Rpb1, domain 2 (RNA_pol_Rpb1_2)RNA polymerase Rpb1, domain 2RNA 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 ...Domain
B [auth D]PF05000RNA polymerase Rpb1, domain 4 (RNA_pol_Rpb1_4)RNA polymerase Rpb1, domain 4RNA 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 ...Domain
B [auth D]PF04983RNA polymerase Rpb1, domain 3 (RNA_pol_Rpb1_3)RNA polymerase Rpb1, domain 3RNA 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 ...Domain
B [auth D]PF04998RNA polymerase Rpb1, domain 5 (RNA_pol_Rpb1_5)RNA polymerase Rpb1, domain 5RNA 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 ...Domain
B [auth D]PF04997RNA polymerase Rpb1, domain 1 (RNA_pol_Rpb1_1)RNA polymerase Rpb1, domain 1RNA 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 ...Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A [auth C]DNA-directed RNA polymerase subunit beta -
C [auth A],
D [auth B]
DNA-directed RNA polymerase subunit alpha -
DNA-directed RNA polymerase subunit omega -
B [auth D]DNA-directed RNA polymerase subunit beta' -

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
A [auth C]IPR007642RNA polymerase Rpb2, domain 2Domain
A [auth C]IPR015712DNA-directed RNA polymerase, subunit 2Family
A [auth C]IPR037033DNA-directed RNA polymerase, subunit 2, hybrid-binding domain superfamilyHomologous Superfamily
A [auth C]IPR042107DNA-directed RNA polymerase, beta subunit, external 1 domain superfamilyHomologous Superfamily
A [auth C]IPR037034RNA polymerase Rpb2, domain 2 superfamilyHomologous Superfamily
A [auth C]IPR007120DNA-directed RNA polymerase, subunit 2, hybrid-binding domainDomain
A [auth C]IPR007121RNA polymerase, beta subunit, conserved siteConserved Site
A [auth C]IPR007645RNA polymerase Rpb2, domain 3Domain
A [auth C]IPR014724RNA polymerase Rpb2, OB-foldHomologous Superfamily
A [auth C]IPR019462DNA-directed RNA polymerase, beta subunit, external 1 domainDomain
A [auth C]IPR010243DNA-directed RNA polymerase beta subunit, bacterial-typeFamily
A [auth C]IPR007644RNA polymerase, beta subunit, protrusionDomain
A [auth C]IPR007641RNA polymerase Rpb2, domain 7Domain
C [auth A],
D [auth B]
IPR011773DNA-directed RNA polymerase, alpha subunitFamily
C [auth A],
D [auth B]
IPR011262DNA-directed RNA polymerase, insert domainDomain
C [auth A],
D [auth B]
IPR011260RNA polymerase, alpha subunit, C-terminalDomain
C [auth A],
D [auth B]
IPR011263DNA-directed RNA polymerase, RpoA/D/Rpb3-typeDomain
C [auth A],
D [auth B]
IPR036643DNA-directed RNA polymerase, insert domain superfamilyHomologous Superfamily
C [auth A],
D [auth B]
IPR036603RNA polymerase, RBP11-like subunitHomologous Superfamily
IPR036161RPB6/omega subunit-like superfamilyHomologous Superfamily
IPR003716DNA-directed RNA polymerase, omega subunitFamily
IPR006110RNA polymerase, subunit omega/Rpo6/RPB6Family
B [auth D]IPR007066RNA polymerase Rpb1, domain 3Domain
B [auth D]IPR007081RNA polymerase Rpb1, domain 5Domain
B [auth D]IPR045867DNA-directed RNA polymerase, subunit beta-primeFamily
B [auth D]IPR012754DNA-directed RNA polymerase, subunit beta-prime, bacterial typeFamily
B [auth D]IPR048566DNA-directed RNA polymerase subunit beta', hybrid domainDomain
B [auth D]IPR042102RNA polymerase Rpb1, domain 3 superfamilyHomologous Superfamily
B [auth D]IPR007083RNA polymerase Rpb1, domain 4Domain
B [auth D]IPR000722RNA polymerase, alpha subunitDomain
B [auth D]IPR044893RNA polymerase Rpb1, clamp domain superfamilyHomologous Superfamily
B [auth D]IPR038120RNA polymerase Rpb1, funnel domain superfamilyHomologous Superfamily
B [auth D]IPR006592RNA polymerase, N-terminalDomain
B [auth D]IPR007080RNA polymerase Rpb1, domain 1Domain