ID 4.99.1.11 DE sirohydrochlorin nickelchelatase. CA 2 H(+) + Ni-sirohydrochlorin = Ni(2+) + sirohydrochlorin. CC -!- The enzyme, studied from the methanogenic archaeon Methanosarcina CC acetivorans, participates in the biosynthesis of the nickel- CC containing tetrapyrrole cofactor coenzyme F430, which is required by CC EC 2.8.4.1. CC -!- It catalyzes the insertion of the nickel ion into sirohydrochlorin. DR A6UWT5, CFBA_META3 ; Q8TJZ5, CFBA_METAC ; P61816, CFBA_METBF ; DR Q12X56, CFBA_METBU ; Q58380, CFBA_METJA ; Q8TY77, CFBA_METKA ; DR Q8PZH6, CFBA_METMA ; P61819, CFBA_METMP ; O27448, CFBA_METTH ; //