Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. Extracytoplasmic function (ECF) sigma factors are held in an inactive form by an anti-sigma factor (RsaM, AC L7N5D7) until released by regulated intramembrane proteolysis (Probable). This sigma factor is required for the synthesis of surface or secreted molecules.

Belongs to the sigma-70 factor family. ECF subfamily.

196 amino acids

MPPPIGYCPAVGFGGRHERSDAELLAAHVAGDRYAFDQLFRRHHRQLHRLARLTSRTSEDADDALQDAMLSAHRGAGSFRYDAAVSSWLHRIVVNACLDRLRRAKAHPTAPLEDVYPVADRTAQVETAIAVQRALMRLPVEQRAAVVAVDMQGYSIADTARMLGVAEGTVKSRCARARARLARLLGYLNTGVNIRR

21.6 kDa

(Note: Representative image - actual molecular weight may vary depending on tag type and expression method)

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