Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, C, E
PF03872Anti sigma-E protein RseA, N-terminal domain (RseA_N)Anti sigma-E protein RseA, N-terminal domainSigma-E is important for the induction of proteins involved in heat shock response. RseA binds sigma-E via its N-terminal domain, sequestering sigma-E and preventing transcription from heat-shock promoters [1]. The C-terminal domain is located in t ...Sigma-E is important for the induction of proteins involved in heat shock response. RseA binds sigma-E via its N-terminal domain, sequestering sigma-E and preventing transcription from heat-shock promoters [1]. The C-terminal domain is located in the periplasm, and may interact with other protein that signal periplasmic stress.
Domain
B, D, F
PF08281Sigma-70, region 4 (Sigma70_r4_2)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].Domain
B, D, 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 ...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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, C, E
Anti sigma-E RseA, N-terminal domain protein
B, D, F
RNA polymerase sigma factor