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YrvL family regulatory protein
YrvL prevents expression and activity of the YrvI sigma factor. It may function as an anti-sigma factor [1,2] [1]. 18573182. A previously unidentified sigma factor and two accessory proteins regulate oxalate decarboxylase expression in Bacillus subtilis. MacLellan SR, Wecke T, Helmann JD;. Mol Microbiol. 2008;69:954-967. [2]. 19047353. The YvrI alternative sigma factor is essential for acid stress induction of oxalate decarboxylase in Bacillus subtilis. MacLellan SR, Helmann JD, Antelmann H;. J Bacteriol. 2009;191:931-939. (from Pfam)
regulatory YrvL family protein
regulatory YrvL family protein similar to Bacillus subtilis membrane-bound negative regulator YvrL that negatively regulates RNA polymerase sigma factor SigO-dependent transcription
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