Macromolecule Annotations for the Entities in PDB 1OR7

Domain Annotation: SCOP Classification SCOP Database (version: 1.75) Homepage

Protein Family Annotation Pfam Database Homepage

Chains Pfam Accession Pfam Identifier Pfam Description Type Source
C PF03872 RseA_N Anti sigma-E protein RseA, N-terminal domain Domain 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. PFAM PF03872
A PF04542 Sigma70_r2 Sigma-70 region 2 Domain 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]. PFAM PF04542
A PF08281 Sigma70_r4_2 Sigma-70, region 4 Domain Region 4 of sigma-70 like sigma-factors are involved in binding to the -35 promoter element via a helix-turn-helix motif [1]. PFAM PF08281

Protein Modification Annotation

Type PDB Residue Nr. Description