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NMR structure of region 2 of E. coli sigmaE
Annotation data related to this entry.
2MAO
  •   Protein Family Annotation: Pfam Classification   Hide
    Chain Pfam Accession Pfam Family Identifier Pfam Description Type Comment
    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]. Source: Pfam  
     
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Annotations in orange boxes have been gathered from external resources.