Protein
RNA polymerase sigma factor SigA1
Organism
Synechococcus elongatus (strain PCC 7942)
Function
Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. This sigma factor is the primary sigma factor during exponential growth.
Similarity
Belongs to the sigma-70 factor family. RpoD/SigA subfamily.
Sequence
MTQLISIDKEQEEAGMTQATELLDPALKPAETKAKRSSRKKATTAVVEPATTIAPTADVDAIDDEDSVGEDEDAAAKAKAKVRKTYTEDSIRLYLQEIGRIRLLRADEEIELARQIADLLALERIRDELLEQLDRLPSDAEWAAAVDSPLDEFRRRLFRGRRAKDKMVQSNLRLVVSIAKKYMNRGLSFQDLIQEGSLGLIRAAEKFDHEKGYKFSTYATWWIRQAITRAIADQSRTIRLPVHLYETISRIKKTTKLLSQEMGRKPTEEEIATRMEMTIEKLRFIAKSAQLPISLETPIGKEEDSRLGDFIEADGETPEDEVAKNLLREDLEGVLSTLSPRERDVLRLRYGLDDGRMKTLEEIGQLFNVTRERIRQIEAKALRKLRHPNRNSILKEYIR