Brucella melitensis cobaltochelatase consists of three subunits, CobN, CobS and CobT, while subunits CobS and CobT form a chaperone-like complex, characteristic for the AAA+ class of proteins 699853 Desulfovibrio vulgaris - 716791 Priestia megaterium - 748769 Priestia megaterium DSM 319 - 748769 Pseudomonas denitrificans (nom. rej.) - 15270, 653078 Salmonella enterica - 716791