Chaperone-protease systems in regulation and protein quality control in Bacillus subtilis

The Gram-positive model organism Bacillus subtilis is extremely well adapted to changing environmental conditions. The chaperone-protease ClpCP and other AAA+ proteases constitute an important component of the B. subtilis protein quality control system that is essential for survival during stress. In this review, we discuss recent discoveries concerning the molecular mechanism, regulation and localization of proteases and chaperones in B. subtilis. (C) 2009 Elsevier Masson SAS. All rights reserved.