Sequence Cluster id id2 desc organism isHeteromeric 1 Cluster1 BRENDA::A4YIE3 methylmalonyl-CoA mutase (subunit 1/2) (EC 5.4.99.2) Metallosphaera sedula heteromer 2 Cluster1 BRENDA::O58013 methylmalonyl-CoA mutase (subunit 1/2) (EC 5.4.99.2) Pyrococcus horikoshii heteromer