Methylmalonic acidemia is an inherited metabolic disorder,which is caused by deficiency of methylmalonyl-coenzyme A mutase or its cofactor adenosylcobalamin.

甲基丙酸血症是由于甲基丙酶A变位酶或其酶苷钴胺素缺陷所致遗传性代谢疾病。

Prosthetic enzyme of mutase, catalyze reactions of group, mainly methyl, metachoresis in the interior of substrate molecule.

变位酶酶，催化底物分子内基团(主要为甲基)变位反应。