Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
BSCOP2B SuperfamilyAnti-sigma factor FlgM 8040794 3001384 SCOP2B (2022-06-29)
ASCOP2B SuperfamilySigma factor domain-like 8040789 3000953 SCOP2B (2022-06-29)
ASCOP2B SuperfamilySigma2 domain of RNA polymerase sigma factors 8040791 3001393 SCOP2B (2022-06-29)
ASCOP2B SuperfamilySigma factor domain-like 8040792 3000953 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
BFlgMe1sc5B1 A: extended segmentsX: Anti-sigma factor FlgM (From Topology)H: Anti-sigma factor FlgM (From Topology)T: Anti-sigma factor FlgMF: FlgMECOD (1.6)
ASigma70_r3e1sc5A1 A: alpha arraysX: HTHH: HTHT: tri-helicalF: Sigma70_r3ECOD (1.6)
ASigma70_r4_2e1sc5A2 A: alpha arraysX: HTHH: HTHT: tri-helicalF: Sigma70_r4_2ECOD (1.6)
ASigma70_r2_2e1sc5A3 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_r2_2ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
B6.10.140.150 Special Helix non-globular Helix Hairpins CATH (4.3.0)
B6.10.140.30 Special Helix non-globular Helix Hairpins Anti-sigma-28 factor FlgMCATH (4.3.0)
A1.10.1740.10 Mainly Alpha Orthogonal Bundle Rna Polymerase Sigma Factor Chain: ACATH (4.3.0)
A1.20.140.160 Mainly Alpha Up-down Bundle Butyryl-CoA Dehydrogenase, subunit A domain 3CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF04316Anti-sigma-28 factor, FlgM (FlgM)Anti-sigma-28 factor, FlgM- Family
PF04539Sigma-70 region 3 (Sigma70_r3)Sigma-70 region 3- 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
anti-sigma factor FlgM -
RNA polymerase sigma factor FliA