Regulated intramembrane proteolysis (RIP) occurs when an extracytoplasmic signal (possibly oxidative stress) triggers a concerted proteolytic cascade to transmit information and elicit cellular responses. The membrane-spanning regulatory substrate protein (includes anti-sigma factors RskA, RslA, RsmA, and PbpB in M.tuberculosis) is first cut extracytoplasmically (site-1 protease, S1P), then within the membrane itself (site-2 protease, S2P, this entry), while cytoplasmic proteases finish degrading the regulatory protein, liberating the effector protein (ECF sigma factors SigK, SigL and SigM) (By similarity).

Belongs to the peptidase M50B family.

404 amino acids

MMFVTGIVLFALAILISVALHECGHMWVARRTGMKVRRYFVGFGPTLWSTRRGETEYGVKAVPLGGFCDIAGMTPVEELDPDERDRAMYKQATWKRVAVLFAGPGMNLAICLVLIYAIALVWGLPNLHPPTRAVIGETGCVAQEVSQGKLEQCTGPGPAALAGIRSGDVVVKVGDTPVSSFDEMAAAVRKSHGSVPIVVERDGTAIVTYVDIESTQRWIPNGQGGELQPATVGAIGVGAARVGPVRYGVFSAMPATFAVTGDLTVEVGKALAALPTKVGALVRAIGGGQRDPQTPISVVGASIIGGDTVDHGLWVAFWFFLAQLNLILAAINLLPLLPFDGGHIAVAVFERIRNMVRSARGKVAAAPVNYLKLLPATYVVLVLVVGYMLLTVTADLVNPIRLFQ

42.8 kDa

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

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