4JKR | pdb_00004jkr

Crystal Structure of E. coli RNA Polymerase in complex with ppGpp


Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
LSCOP2B SuperfamilySigma2 domain of RNA polymerase sigma factors 8038503 3001393 SCOP2B (2022-06-29)
FSCOP2B SuperfamilySigma2 domain of RNA polymerase sigma factors 8038503 3001393 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
LFRB_dome4jkrL1 A: alpha bundlesX: Ribonuclease H-likeH: Ribonuclease H-likeT: Ribonuclease H-likeF: FRB_domECOD (develop294)
FMR_MLE_Ne4jkrF1 A: alpha bundlesX: Thioredoxin-likeH: ClpP/crotonaseT: ClpP/crotonaseF: MR_MLE_NECOD (develop294)
KHSP70e4jkrK1 A: alpha bundlesX: all-alpha NTP pyrophosphatasesH: all-alpha NTP pyrophosphatasesT: MazG-relatedF: HSP70ECOD (develop294)
EPyr_redox_2e4jkrE1 A: alpha bundlesX: SSHS domainH: Class II aaRS and biotin synthetasesT: Ribosome modulation factorF: Pyr_redox_2ECOD (develop294)
Je4jkrJ2 A: alpha bundlesX: Rossmann-likeH: Glycosyl hydrolase domainT: Glycosyl hydrolase domainF:ECOD (develop294)
JViral_coate4jkrJ9 A: alpha bundlesX: TIM beta/alpha-barrelH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: Viral_coatECOD (develop294)
DGlutaredoxine4jkrD1 A: alpha bundlesX: CCHHC domainH: CCHHC domainT: CCHHC domainF: GlutaredoxinECOD (develop294)
De4jkrD2 A: alpha bundlesX: Rossmann-likeH: Glycosyl hydrolase domainT: Glycosyl hydrolase domainF:ECOD (develop294)
ICholine_kinase, EcKLe4jkrI4 A: alpha bundlesX: PBZ domainH: PBZ domainT: PBZ domainF: Choline_kinase, EcKLECOD (develop294)
Ie4jkrI10 A: alpha bundlesX: DEATH domainH: Ten stranded beta/alpha barrelT: Ten stranded beta/alpha barrelF:ECOD (develop294)
IPectate_lyase_2e4jkrI8 A: alpha bundlesX: Four-helical up-and-down bundleH: Thymidylate synthase/dCMP hydroxymethylaseT: Thymidylate synthase/dCMP hydroxymethylaseF: Pectate_lyase_2ECOD (develop294)
CMR_MLE_Ne4jkrC2 A: alpha bundlesX: Thioredoxin-likeH: ClpP/crotonaseT: ClpP/crotonaseF: MR_MLE_NECOD (develop294)
CPectate_lyase_2e4jkrC11 A: alpha bundlesX: Four-helical up-and-down bundleH: Thymidylate synthase/dCMP hydroxymethylaseT: Thymidylate synthase/dCMP hydroxymethylaseF: Pectate_lyase_2ECOD (develop294)
HCupin_7e4jkrH3 A: alpha bundlesX: Subtilisin-likeH: Subtilisin-likeT: Subtilisin-likeF: Cupin_7ECOD (develop294)
GCupin_7e4jkrG3 A: alpha bundlesX: Subtilisin-likeH: Subtilisin-likeT: Subtilisin-likeF: Cupin_7ECOD (develop294)
BCupin_7e4jkrB3 A: alpha bundlesX: Subtilisin-likeH: Subtilisin-likeT: Subtilisin-likeF: Cupin_7ECOD (develop294)
ACupin_7e4jkrA3 A: alpha bundlesX: Subtilisin-likeH: Subtilisin-likeT: Subtilisin-likeF: Cupin_7ECOD (develop294)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
F, L
PF04539Sigma-70 region 3 (Sigma70_r3)Sigma-70 region 3- Family
F, L
PF00140Sigma-70 factor, region 1.2 (Sigma70_r1_2)Sigma-70 factor, region 1.2- Family
F, L
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
F, L
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
F, L
PF04546Sigma-70, non-essential region (Sigma70_ner)Sigma-70, non-essential regionThe domain is found in the primary vegetative sigma factor. The function of this domain is unclear and can be removed without loss of function. Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
F, L
RNA polymerase sigma factor RpoD
E, K
DNA-directed RNA polymerase subunit omega---
D, J
DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA'---
C, I
DNA-directed RNA polymerase subunit beta
A, B, G, H
DNA-directed RNA polymerase subunit alpha---

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
F, L
IPR007627RNA polymerase sigma-70 region 2Domain
F, L
IPR000943RNA polymerase sigma-70Domain
F, L
IPR013325RNA polymerase sigma factor, region 2Homologous Superfamily
F, L
IPR009042RNA polymerase sigma-70 region 1.2Domain
F, L
IPR007630RNA polymerase sigma-70 region 4Domain
F, L
IPR014284RNA polymerase sigma-70-like domainDomain
F, L
IPR007624RNA polymerase sigma-70 region 3Domain
F, L
IPR028630RNA polymerase sigma factor RpoDFamily
F, L
IPR050239Sigma-70 factor family, RNA polymerase initiation factorsFamily
F, L
IPR007127RNA polymerase sigma factor 70, region 1.1Domain
F, L
IPR013324RNA polymerase sigma factor, region 3/4-likeHomologous Superfamily
F, L
IPR036388Winged helix-like DNA-binding domain superfamilyHomologous Superfamily
F, L
IPR012760RNA polymerase sigma factor RpoD, C-terminalDomain
F, L
IPR007631RNA polymerase sigma factor 70, non-essential domainDomain
F, L
IPR042189Sigma-70 factor, region 1.1 superfamilyHomologous Superfamily
C, I
IPR007642RNA polymerase Rpb2, domain 2Domain
C, I
IPR015712DNA-directed RNA polymerase, subunit 2Family
C, I
IPR037033DNA-directed RNA polymerase, subunit 2, hybrid-binding domain superfamilyHomologous Superfamily
C, I
IPR042107DNA-directed RNA polymerase, beta subunit, external 1 domain superfamilyHomologous Superfamily
C, I
IPR037034RNA polymerase Rpb2, domain 2 superfamilyHomologous Superfamily
C, I
IPR007120DNA-directed RNA polymerase, subunit 2, hybrid-binding domainDomain
C, I
IPR007121RNA polymerase, beta subunit, conserved siteConserved Site
C, I
IPR007645RNA polymerase Rpb2, domain 3Domain
C, I
IPR014724RNA polymerase Rpb2, OB-foldHomologous Superfamily
C, I
IPR019462DNA-directed RNA polymerase, beta subunit, external 1 domainDomain
C, I
IPR010243DNA-directed RNA polymerase beta subunit, bacterial-typeFamily
C, I
IPR007644RNA polymerase, beta subunit, protrusionDomain
C, I
IPR007641RNA polymerase Rpb2, domain 7Domain