Description_x000D_ Application_x000D_ Coenzyme A functions as an acyl group carrier, acetyl-CoA. Methylmalonyl coenzyme A (MM-CoA) is a substrate used to study the specificity and kinetics of enzymes such as methylmalonyl Coenzyme A mutase (succinyl-Ca forming), methylmalonyl-CoA decarboxylase (EC 4.1.1.41), and methylmalonyl-CoA hydrolase (EC 3.1.2.17)._x000D_ Methylmalonyl coenzyme A (CoA) has been used in the preparation of the calibration curve in ultra-performance liquid chromatography-mass spectrometry (UPLC-MS/MS). It has also been used in the measurement of methylmalonyl-CoA mutase and methylmalonyl-CoA epimerase activity._x000D_ Packaging_x000D_ 1, 5 mg in glass bottle_x000D_ 25 mg in poly bottle_x000D_ Biochem/physiol Actions_x000D_ Methylmalonyl coenzyme A (CoA) is a catabolite of odd-chain fatty acids, cholesterol and few amino acids like valine, isoleucine, methionine, threonine. It is produced by the activity of the enzyme propionyl-CoA carboxylase(PCC). Methylmalonyl coenzyme A (CoA) is converted to succinyl-CoA by the methylmalonyl-CoA mutase (MCM) and vitamin B12 as the cofactor. Either a low MCM activity or an altered metabolism of vitamin B12 causes the inherited metabolic disease methylmalonic acidemia (MMA).