这些损害可能是由于活性氧，嵌入剂，辐射，脱嘌呤和脱氨作用引起的。
These damages may arise from reactive oxygen species, intercalating agents, radiation, depurination, and deamination.
目的：探讨亚叶酸钙(CF)联合5氟胞嘧啶(5FU)对转染胞嘧啶脱氨酶(CD)基因的直肠癌细胞的杀伤作用。
Objective to study antitumor effect of calcium folinate (CF) and 5 fluorocytosine (5 FU) on rectal carcinoma cells transfected with cytosine deaminase (CD) gene.
皮制革废水富含蛋白质，在好氧处理过程中，经过好氧微生物的脱氨基作用，蛋白质中的氨基酸被转化成游离氨。
Leather wastewater is rich in protein. In the aerobic treatment process, protein amino acids are converted to free ammonia by aerobic microbial deamination.
皮制革废水富含蛋白质，在好氧处理过程中，经过好氧微生物的脱氨基作用，蛋白质中的氨基酸被转化成游离氨。
Leather wastewater is rich in protein. In the aerobic treatment process, protein amino acids are converted to free ammonia by aerobic microbial deamination.
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