Solution structure of the complex formed by the region 2 of E. coli sigmaE and its cognate -10 promoter element non template strand TGTCAAA.


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
ARep-A_Ne2mapA1 A: alpha arraysX: DEATH domainH: 6-phosphogluconate dehydrogenase C-terminal domain-likeT: 6-phosphogluconate dehydrogenase C-terminal domain-likeF: Rep-A_NECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A1.10.1740.10 Mainly Alpha Orthogonal Bundle Rna Polymerase Sigma Factor Chain: ACATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
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
DNA---
RNA polymerase sigma factor