全部

1·Methionine synthase is a key enzyme in homocysteine metabolism. The defects of methionine synthase activity could result in hyperhomocysteinemia and methionine auxotrophy.

甲硫氨酸合酶是同型半胱氨酸代谢的关键酶，其活性缺失可能会导致同型半胱氨酸蓄积及甲硫氨酸缺陷。