Assertion: vitamin b12's form | /r/HasProperty | required as cofactor
Facets:
value: by an enzyme
type: OTHER
Source sentences:
text: The other form of vitamin B12, 5-deoxyadenosylcobalamin, is required as cofactor by an enzyme, which plays an important role in the production of energy from fats and proteins, and in the synthesis of haemoglobin, the oxygen carrying pigment in red blood cells (2).