6TYG

Crystal structure of MTB sigma L transcription initiation complex with 9 nt long RNA primer


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
A [auth F]Sigma70_r4_2e6tygF1 A: alpha arraysX: HTHH: HTHT: tri-helicalF: Sigma70_r4_2ECOD (1.6)
A [auth F]Sigma70_r2e6tygF2 A: alpha complex topologyX: Sigma2 domain-likeH: Sigma2 domain of RNA polymerase sigma factors (From Topology)T: Sigma2 domain of RNA polymerase sigma factorsF: Sigma70_r2ECOD (1.6)
F [auth B]RNA_pol_Le6tygB2 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)
F [auth B]RNA_pol_A_bace6tygB1 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)
E [auth A]RNA_pol_Le6tygA2 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)
E [auth A]RNA_pol_A_bace6tygA1 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)
G [auth C]RNA_pol_Rpb2_6_3rd_1e6tygC2 A: beta barrelsX: cradle loop barrelH: RIFT-relatedT: double psiF: RNA_pol_Rpb2_6_3rd_1ECOD (1.6)
G [auth C]RNA_pol_Rpb2_6_2nde6tygC1 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)
G [auth C]RNA_pol_Rpb2_6_1ste6tygC3 A: a+b complex topologyX: alpha/beta-Hammerhead/Barrel-sandwich hybridH: alpha/beta-Hammerhead/Barrel-sandwich hybridT: Single hybrid motifF: RNA_pol_Rpb2_6_1stECOD (1.6)
G [auth C]RNA_pol_Rpb2_3e6tygC4 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)
G [auth C]RNA_pol_Rpb2_1e6tygC5 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)
G [auth C]RNA_pol_Rpb2_45e6tygC6 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)
G [auth C]RNA_pol_Rpb2_7e6tygC7 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)
I [auth E]RNA_pol_Rpb6e6tygE1 A: alpha arraysX: RPB6/omega subunit-like (From Homology)H: RPB6/omega subunit-likeT: RNA polymerase omega subunitF: RNA_pol_Rpb6ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A [auth F]PF04542Sigma-70 region 2 (Sigma70_r2)Sigma-70 region 2Region 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 ...Domain
A [auth F]PF04545Sigma-70, region 4 (Sigma70_r4)Sigma-70, region 4Region 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 ...Domain
E [auth A],
F [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
E [auth A],
F [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
G [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
G [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
G [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
G [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
G [auth C]PF04563RNA polymerase beta subunit (RNA_pol_Rpb2_1)RNA polymerase beta subunit- Family
G [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
H [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
H [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
H [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
H [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
I [auth E]PF01192RNA polymerase Rpb6 (RNA_pol_Rpb6)RNA polymerase Rpb6- Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A [auth F]RNA polymerase sigma factor -
B [auth G]DNA (5'-D(*GP*CP*AP*TP*CP*CP*GP*TP*GP*AP*AP*TP*CP*GP*AP*GP*GP*GP*TP*G)-3')---
C [auth H]DNA (5'-D(P*GP*TP*GP*TP*CP*AP*GP*TP*AP*GP*CP*TP*GP*TP*CP*AP*CP*GP*GP*AP*TP*GP*C)-3')---
D [auth I]RNA (5'-R(P*CP*AP*CP*CP*CP*UP*CP*GP*A)-3')---
E [auth A],
F [auth B]
DNA-directed RNA polymerase subunit alpha -
G [auth C]DNA-directed RNA polymerase subunit beta
H [auth D]DNA-directed RNA polymerase subunit beta' -
I [auth E]DNA-directed RNA polymerase subunit omega -

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
A [auth F]IPR014284RNA polymerase sigma-70-like domainDomain
A [auth F]IPR007627RNA polymerase sigma-70 region 2Domain
A [auth F]IPR039425RNA polymerase sigma-70-likeFamily
A [auth F]IPR013325RNA polymerase sigma factor, region 2Homologous Superfamily
A [auth F]IPR013324RNA polymerase sigma factor, region 3/4-likeHomologous Superfamily
A [auth F]IPR036388Winged helix-like DNA-binding domain superfamilyHomologous Superfamily
A [auth F]IPR000838RNA polymerase sigma factor 70, ECF, conserved siteConserved Site
A [auth F]IPR007630RNA polymerase sigma-70 region 4Domain
E [auth A],
F [auth B]
IPR011773DNA-directed RNA polymerase, alpha subunitFamily
E [auth A],
F [auth B]
IPR011262DNA-directed RNA polymerase, insert domainDomain
E [auth A],
F [auth B]
IPR011260RNA polymerase, alpha subunit, C-terminalDomain
E [auth A],
F [auth B]
IPR011263DNA-directed RNA polymerase, RpoA/D/Rpb3-typeDomain
E [auth A],
F [auth B]
IPR036643DNA-directed RNA polymerase, insert domain superfamilyHomologous Superfamily
E [auth A],
F [auth B]
IPR036603RNA polymerase, RBP11-like subunitHomologous Superfamily
G [auth C]IPR007120DNA-directed RNA polymerase, subunit 2, hybrid-binding domainDomain
G [auth C]IPR007121RNA polymerase, beta subunit, conserved siteConserved Site
G [auth C]IPR014724RNA polymerase Rpb2, OB-foldHomologous Superfamily
G [auth C]IPR007642RNA polymerase Rpb2, domain 2Domain
G [auth C]IPR015712DNA-directed RNA polymerase, subunit 2Family
G [auth C]IPR037033DNA-directed RNA polymerase, subunit 2, hybrid-binding domain superfamilyHomologous Superfamily
G [auth C]IPR042107DNA-directed RNA polymerase, beta subunit, external 1 domain superfamilyHomologous Superfamily
G [auth C]IPR037034RNA polymerase Rpb2, domain 2 superfamilyHomologous Superfamily
G [auth C]IPR007645RNA polymerase Rpb2, domain 3Domain
G [auth C]IPR019462DNA-directed RNA polymerase, beta subunit, external 1 domainDomain
G [auth C]IPR010243DNA-directed RNA polymerase beta subunit, bacterial-typeFamily
G [auth C]IPR007644RNA polymerase, beta subunit, protrusionDomain
G [auth C]IPR007641RNA polymerase Rpb2, domain 7Domain
H [auth D]IPR007066RNA polymerase Rpb1, domain 3Domain
H [auth D]IPR007081RNA polymerase Rpb1, domain 5Domain
H [auth D]IPR045867DNA-directed RNA polymerase, subunit beta-primeFamily
H [auth D]IPR012754DNA-directed RNA polymerase, subunit beta-prime, bacterial typeFamily
H [auth D]IPR042102RNA polymerase Rpb1, domain 3 superfamilyHomologous Superfamily
H [auth D]IPR007083RNA polymerase Rpb1, domain 4Domain
H [auth D]IPR000722RNA polymerase, alpha subunitDomain
H [auth D]IPR044893RNA polymerase Rpb1, clamp domain superfamilyHomologous Superfamily
H [auth D]IPR038120RNA polymerase Rpb1, funnel domain superfamilyHomologous Superfamily
H [auth D]IPR006592RNA polymerase, N-terminalDomain
H [auth D]IPR007080RNA polymerase Rpb1, domain 1Domain
I [auth E]IPR006110RNA polymerase, subunit omega/Rpo6/RPB6Family
I [auth E]IPR036161RPB6/omega subunit-like superfamilyHomologous Superfamily
I [auth E]IPR003716DNA-directed RNA polymerase, omega subunitFamily