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serine-protein kinase RsbW This model describes the anti-sigma B factor also known as serine-protein kinase RsbW. Sigma B controls the general stress regulon in B subtilis and is activated by cell stresses such as stationary phase and heat shock. RsbW binds to sigma B and prevents formation of the transcription complex at the promoter. RsbV (anti-anti-sigma factor) binds to RsbW to inhibit association with sigma B, however RsbW can phosphorylate RsbV, causing disassociation of the RsbV/RsbW complex. Low ATP level or environmental stress causes the dephosphorylation of RsbV. |
Jiyao W et al.(2023). "The conserved domain database in 2023.",