YabG is a protease involved in the proteolysis and maturation of SpoIVA and YrbA proteins, conserved with the cortex and/or coat assembly by Bacillus subtilis.

1: The yabG gene of Bacillus subtilis encodes a sporulation specific protease which is involved in the processing of several spore coat proteins. Takamatsu H, Imamura A, Kodama T, Asai K, Ogasawara N, Watabe K; FEMS Microbiol Lett 2000;192:33-38. PMID:11040425