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

甲基丙二酸血症是由于甲基丙二酰酶A变位酶酶苷缺陷所致的一种遗传性代谢疾病。

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

变位酶的酶，催化底物分子内基团(主要为甲基)的变位反应。