Enzyme co-factors Apoenzyme cofactor holoenzyme TABLE 8.2 Enzyme cofactors Cofactor Enzyme Coenzyme Thiamine pyrophosphate Pyruvate dehydrogenase Flavin adenine nucleotide Monoamine oxidase Nicotinamide adenine dinucleotide Lactate dehydrogenase Pyridoxal phosphate Glycogen phosphorylase Coenzyme A(CoA) Acetyl CoA carboxylase Biotin Pyruvate carboxylase 5'-Deoxyadenosyl cobalamin Methylmalonyl mutase Tetrahydrofolate Thymidylate synthase Metal Zn2+ Carbonic anhydrase Zn2+ Carboxypeptidase Mg2+ EcoRV Mg2+ Hexokinase Ni2+ Urease o Nitrate reductase Glutathione peroxidase Mn2+ Superoxide dismutase K+ Propionyl CoA carboxylase Enzyme co-factors Apoenzyme + cofactor = holoenzyme