产品内容
本酶催化的反应为3 S-Adenosyl-L-Methionine + Glycine = 3 S-Adenosyl-L-Homocysteine + Betaine (Overall Reaction);;(1a) S-Adenosyl-L-Methionine + Glycine = S-Adenosyl-L-Homocysteine + Sarcosine;;(1b) S-Adenosyl-L-Methionine + Sarcosine = S-Adenosyl-L-Homocysteine + N,N-Dimethylglycine;;(1c) S-Adenosyl-L-Methionine + N,N-Dimethylglycine = S-Adenosyl-L-Homocysteine + Betaine，系统名称为S-Adenosyl-L-Methionine:glycine(or Sarcosine Or N,N-Dimethylglycine) N-Methyltransferase [Sarcosine(or N,N-Dimethylglycine Or Betaine)-Forming]，与 EC 2.1.1.156（甘氨酸/肌氨酸 N-甲基转移酶）、EC 2.1.1.157（肌氨酸/二甲基甘氨酸 N-甲基转移酶）和 EC 2.1.1.161（二甲基甘氨酸 N-甲基转移酶）不同，来自嗜盐产甲烷古菌 Methanohalophilus portucalensis 的该酶可将甘氨酸及其所有中间体甲基化，生成相容溶质甜菜碱 [1]。
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