Isocitrate lyase catalyses the reversible lysis of a C-C bond of isocitrate to form glycoxylate and succinate. The enzyme directs acetyl-CoA away from beta-oxidation of fatty acids into the glyoxylate shunt pathway, giving a net carbon gain. It plays a key role in the persistence of Mycobacterium tuberculosis within humans.
Defined by 7 residues: ASP:A-154 [auth A-153]HIS:A-181 [auth A-180]CYS:A-192 [auth A-191]HIS:A-194 [auth A-193]ARG:A-229 [auth A-228]SER:A-316 [auth A-315]SER:A-318 [auth A-317]