Assertion: vitamin b12 | /r/HasProperty | cofactor
Facets:
value: for only two enzymes
type: OTHER
value: in mammals
type: OTHER
Source sentences:
text: In mammals, cobalamin is a cofactor for only two enzymes, methionine synthase and L-methylmalonyl-coenzyme
text: Cobalamin in mammals is a cofactor for only two enzymes, namely: L-methylmalonyl-CoA mutase and methionine synthase.