Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
NSCOP2B SuperfamilyT7 Gp2 RNA polymerase inhibitor 8101177 3002717 SCOP2B (2022-06-29)
MSCOP2 FamilyT7 Gp2 8046254 4004987 SCOP2 (2022-06-29)
MSCOP2 SuperfamilyT7 Gp2 RNA polymerase inhibitor 8101177 3002717 SCOP2 (2022-06-29)
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)
NHis_biosynthe4llgN1 A: alpha bundlesX: TIM beta/alpha-barrelH: TIM barrelsT: TIM barrelsF: His_biosynthECOD (develop294)
MHis_biosynthe4llgM1 A: alpha bundlesX: TIM beta/alpha-barrelH: TIM barrelsT: TIM barrelsF: His_biosynthECOD (develop294)
LCBSe4llgL1 A: alpha bundlesX: Thioredoxin-likeH: ClpP/crotonaseT: ClpP/crotonaseF: CBSECOD (develop294)
FCBSe4llgF1 A: alpha bundlesX: Thioredoxin-likeH: ClpP/crotonaseT: ClpP/crotonaseF: CBSECOD (develop294)
FSigma70_r2,Sigma70_nere4llgF3 A: alpha bundlesX: Lipocalins/StreptavidinH: SAM/DNA-glycosylaseT: SAM domain-likeF: Sigma70_r2,Sigma70_nerECOD (develop294)
KHis_biosynthe4llgK1 A: alpha bundlesX: TIM beta/alpha-barrelH: TIM barrelsT: TIM barrelsF: His_biosynthECOD (develop294)
EHis_biosynthe4llgE1 A: alpha bundlesX: TIM beta/alpha-barrelH: TIM barrelsT: TIM barrelsF: His_biosynthECOD (develop294)
Je4llgJ2 A: alpha bundlesX: Rossmann-likeH: Glycosyl hydrolase domainT: Glycosyl hydrolase domainF:ECOD (develop294)
JPhosphonate-bde4llgJ1 A: alpha bundlesX: Rossmann-likeH: Glycosyl hydrolase domainT: Glycosyl hydrolase domainF: Phosphonate-bdECOD (develop294)
JPeptidase_S26e4llgJ9 A: alpha bundlesX: TIM beta/alpha-barrelH: TIM barrelsT: TIM barrelsF: Peptidase_S26ECOD (develop294)
De4llgD2 A: alpha bundlesX: Rossmann-likeH: Glycosyl hydrolase domainT: Glycosyl hydrolase domainF:ECOD (develop294)
DPhosphonate-bde4llgD1 A: alpha bundlesX: Rossmann-likeH: Glycosyl hydrolase domainT: Glycosyl hydrolase domainF: Phosphonate-bdECOD (develop294)
De4llgD9 A: alpha bundlesX: Periplasmic binding protein-like IIH: Rubredoxin-relatedT: Tetrapyrrole methylase C-terminal domainF:ECOD (develop294)
IHis_biosynthe4llgI8 A: alpha bundlesX: TIM beta/alpha-barrelH: TIM barrelsT: TIM barrelsF: His_biosynthECOD (develop294)
IChorismate_binde4llgI19 A: alpha bundlesX: Subtilisin-likeH: Subtilisin-likeT: Subtilisin-likeF: Chorismate_bindECOD (develop294)
IPectate_lyase_2e4llgI9 A: alpha bundlesX: Four-helical up-and-down bundleH: Thymidylate synthase/dCMP hydroxymethylaseT: Thymidylate synthase/dCMP hydroxymethylaseF: Pectate_lyase_2ECOD (develop294)
CHis_biosynthe4llgC8 A: alpha bundlesX: TIM beta/alpha-barrelH: TIM barrelsT: TIM barrelsF: His_biosynthECOD (develop294)
CChorismate_binde4llgC19 A: alpha bundlesX: Subtilisin-likeH: Subtilisin-likeT: Subtilisin-likeF: Chorismate_bindECOD (develop294)
CPectate_lyase_2e4llgC9 A: alpha bundlesX: Four-helical up-and-down bundleH: Thymidylate synthase/dCMP hydroxymethylaseT: Thymidylate synthase/dCMP hydroxymethylaseF: Pectate_lyase_2ECOD (develop294)
ACupin_7e4llgA3 A: alpha bundlesX: Subtilisin-likeH: Subtilisin-likeT: Subtilisin-likeF: Cupin_7ECOD (develop294)
HCupin_7e4llgH3 A: alpha bundlesX: Subtilisin-likeH: Subtilisin-likeT: Subtilisin-likeF: Cupin_7ECOD (develop294)
GCupin_7e4llgG3 A: alpha bundlesX: Subtilisin-likeH: Subtilisin-likeT: Subtilisin-likeF: Cupin_7ECOD (develop294)
BCupin_7e4llgB3 A: alpha bundlesX: Subtilisin-likeH: Subtilisin-likeT: Subtilisin-likeF: Cupin_7ECOD (develop294)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
N3.10.20.510 Alpha Beta Roll Ubiquitin-like (UB roll) RNA polymerase inhibitorCATH (4.3.0)
M3.10.20.510 Alpha Beta Roll Ubiquitin-like (UB roll) RNA polymerase inhibitorCATH (4.3.0)
L1.10.601.10 Mainly Alpha Orthogonal Bundle RNA Polymerase Primary Sigma Factor RNA Polymerase Primary Sigma FactorCATH (4.3.0)
L1.10.10.10 Mainly Alpha Orthogonal Bundle Arc Repressor Mutant, subunit A Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domainCATH (4.3.0)
F1.10.601.10 Mainly Alpha Orthogonal Bundle RNA Polymerase Primary Sigma Factor RNA Polymerase Primary Sigma FactorCATH (4.3.0)
F1.10.10.10 Mainly Alpha Orthogonal Bundle Arc Repressor Mutant, subunit A Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domainCATH (4.3.0)
K3.90.940.10 Alpha Beta Alpha-Beta Complex Eukaryotic RPB6 RNA polymerase subunit RNA polymerase subunit, RPB6/omegaCATH (4.3.0)
E3.90.940.10 Alpha Beta Alpha-Beta Complex Eukaryotic RPB6 RNA polymerase subunit RNA polymerase subunit, RPB6/omegaCATH (4.3.0)
I2.40.270.10 Mainly Beta Beta Barrel Dna-directed Rna Polymerase Ii 140kd Polypeptide Chain: BCATH (4.3.0)
I2.30.150.10 Mainly Beta Roll Rna Polymerase Beta Subunit Chain: C, domain 4CATH (4.3.0)
I2.40.50.100 Mainly Beta Beta Barrel OB fold (Dihydrolipoamide Acetyltransferase, E2P) RNA polymerase II/Efflux pump adaptor protein, barrel-sandwich hybrid domainCATH (4.3.0)
I2.40.50.150 Mainly Beta Beta Barrel OB fold (Dihydrolipoamide Acetyltransferase, E2P) RNA polymerase II, Rpb2 subunit, wall domainCATH (4.3.0)
I6.10.140.1670 Special Helix non-globular Helix Hairpins CATH (4.3.0)
C3.90.1110.10 Alpha Beta Alpha-Beta Complex Dna-directed Rna Polymerase Ii 140kd Polypeptide Chain: BCATH (4.3.0)
C2.30.150.10 Mainly Beta Roll Rna Polymerase Beta Subunit Chain: C, domain 4CATH (4.3.0)
C2.40.270.10 Mainly Beta Beta Barrel Dna-directed Rna Polymerase Ii 140kd Polypeptide Chain: BCATH (4.3.0)
C2.40.50.100 Mainly Beta Beta Barrel OB fold (Dihydrolipoamide Acetyltransferase, E2P) RNA polymerase II/Efflux pump adaptor protein, barrel-sandwich hybrid domainCATH (4.3.0)
C2.40.50.150 Mainly Beta Beta Barrel OB fold (Dihydrolipoamide Acetyltransferase, E2P) RNA polymerase II, Rpb2 subunit, wall domainCATH (4.3.0)
C6.10.140.1670 Special Helix non-globular Helix Hairpins CATH (4.3.0)
A3.30.1360.10 Alpha Beta 2-Layer Sandwich Gyrase A domain 2CATH (4.3.0)
A2.170.120.12 Mainly Beta Beta Complex RNA Polymerase Alpha Subunit Chain A, domain 2CATH (4.3.0)
H3.30.1360.10 Alpha Beta 2-Layer Sandwich Gyrase A domain 2CATH (4.3.0)
H2.170.120.12 Mainly Beta Beta Complex RNA Polymerase Alpha Subunit Chain A, domain 2CATH (4.3.0)
G3.30.1360.10 Alpha Beta 2-Layer Sandwich Gyrase A domain 2CATH (4.3.0)
G2.170.120.12 Mainly Beta Beta Complex RNA Polymerase Alpha Subunit Chain A, domain 2CATH (4.3.0)
B3.30.1360.10 Alpha Beta 2-Layer Sandwich Gyrase A domain 2CATH (4.3.0)
B2.170.120.12 Mainly Beta Beta Complex RNA Polymerase Alpha Subunit Chain A, domain 2CATH (4.3.0)

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
M, N
Bacterial RNA polymerase inhibitor- -
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---