英语语法分析

DNA methyltransferase inhibitors can inhibit tumor growth significantly, and have good therapeutic effect.

研究表明DNA甲基转移酶抑制剂可以显著抑制肿瘤生长，有很好的治疗效果。

Mutations in the DNA methyltransferase gene DNMT3A cause an overgrowth syndrome with intellectual disability.

【译】在DNA甲基转移酶基因DNMT3A突变引起的过度生长综合征与智力残疾。

Objective To investigate thiopurine methyltransferase(TPMT) activity distribution in Chinese Han and Yao population.

目的研究巯基嘌呤甲基转移酶（TPMT）活性在中国汉族和瑶族人群中的分布。