9W3G | pdb_00009w3g

Cryo-EM structure of E. coli RNA polymerase in complex with VP1


Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF04539Sigma-70 region 3 (Sigma70_r3)Sigma-70 region 3- Family
PF00140Sigma-70 factor, region 1.2 (Sigma70_r1_2)Sigma-70 factor, region 1.2- Family
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 ...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
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 ...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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
Phage protein---
RNA polymerase sigma factor RpoD
DNA-directed RNA polymerase subunit omega
DNA-directed RNA polymerase subunit beta'
DNA-directed RNA polymerase subunit beta
A, B
DNA-directed RNA polymerase subunit alpha

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
IPR007627RNA polymerase sigma-70 region 2Domain
IPR000943RNA polymerase sigma-70Domain
IPR013325RNA polymerase sigma factor, region 2Homologous Superfamily
IPR009042RNA polymerase sigma-70 region 1.2Domain
IPR007630RNA polymerase sigma-70 region 4Domain
IPR014284RNA polymerase sigma-70-like domainDomain
IPR007624RNA polymerase sigma-70 region 3Domain
IPR028630RNA polymerase sigma factor RpoDFamily
IPR050239Sigma-70 factor family, RNA polymerase initiation factorsFamily
IPR007127RNA polymerase sigma factor 70, region 1.1Domain
IPR013324RNA polymerase sigma factor, region 3/4-likeHomologous Superfamily
IPR036388Winged helix-like DNA-binding domain superfamilyHomologous Superfamily
IPR012760RNA polymerase sigma factor RpoD, C-terminalDomain
IPR007631RNA polymerase sigma factor 70, non-essential domainDomain
IPR042189Sigma-70 factor, region 1.1 superfamilyHomologous Superfamily
IPR036161RPB6/omega subunit-like superfamilyHomologous Superfamily
IPR003716DNA-directed RNA polymerase, omega subunitFamily
IPR006110RNA polymerase, subunit omega/Rpo6/RPB6Family
IPR007066RNA polymerase Rpb1, domain 3Domain
IPR007081RNA polymerase Rpb1, domain 5Domain
IPR045867DNA-directed RNA polymerase, subunit beta-primeFamily
IPR012754DNA-directed RNA polymerase, subunit beta-prime, bacterial typeFamily
IPR042102RNA polymerase Rpb1, domain 3 superfamilyHomologous Superfamily
IPR007083RNA polymerase Rpb1, domain 4Domain
IPR000722RNA polymerase, alpha subunitDomain
IPR044893RNA polymerase Rpb1, clamp domain superfamilyHomologous Superfamily
IPR038120RNA polymerase Rpb1, funnel domain superfamilyHomologous Superfamily
IPR006592RNA polymerase, N-terminalDomain
IPR007080RNA polymerase Rpb1, domain 1Domain
IPR007642RNA polymerase Rpb2, domain 2Domain
IPR015712DNA-directed RNA polymerase, subunit 2Family
IPR037033DNA-directed RNA polymerase, subunit 2, hybrid-binding domain superfamilyHomologous Superfamily
IPR042107DNA-directed RNA polymerase, beta subunit, external 1 domain superfamilyHomologous Superfamily
IPR037034RNA polymerase Rpb2, domain 2 superfamilyHomologous Superfamily
IPR007120DNA-directed RNA polymerase, subunit 2, hybrid-binding domainDomain
IPR007121RNA polymerase, beta subunit, conserved siteConserved Site
IPR007645RNA polymerase Rpb2, domain 3Domain
IPR014724RNA polymerase Rpb2, OB-foldHomologous Superfamily
IPR019462DNA-directed RNA polymerase, beta subunit, external 1 domainDomain
IPR010243DNA-directed RNA polymerase beta subunit, bacterial-typeFamily
IPR007644RNA polymerase, beta subunit, protrusionDomain
IPR007641RNA polymerase Rpb2, domain 7Domain
A, B
IPR011773DNA-directed RNA polymerase, alpha subunitFamily
A, B
IPR011262DNA-directed RNA polymerase, insert domainDomain
A, B
IPR011260RNA polymerase, alpha subunit, C-terminalDomain
A, B
IPR011263DNA-directed RNA polymerase, RpoA/D/Rpb3-typeDomain
A, B
IPR036643DNA-directed RNA polymerase, insert domain superfamilyHomologous Superfamily
A, B
IPR036603RNA polymerase, RBP11-like subunitHomologous Superfamily