转移酶

And content of Ach was tested by alkaline hydroxylamine method.

用Morris水迷宫法测试小鼠的空间记忆能力，用比色法测定大脑皮质胆碱乙酰转移酶、胆碱酯酶活性，用碱性羟胺法测定乙酰胆碱含量。

Vitamin E, or tocopherol, is a lipid-soluble antioxidant and essential for human health. 2-methyl-6-phytyl-1, 4-benzo- quinol methyltransferase, one of the key enzymes in vitamin biosynthetic pathway in plants, converts 2-methyl- 6-phytyl-1,4-benzoquinol to 2,3-dimethyl-6-phytyl-1,4-benzoquinol.

维生素E是一类人体必需的脂溶性抗氧化剂，具有重要的生理功能。2-甲基-6-叶绿基-1，4-苯醌甲基转移酶是天然维生素E合成途径中的关键酶之一，催化MPBQ甲基化，生成DMPBQ。

Methyl-6-phytyl-1, 4-benzo- quinol methyltransferase, one of the key enzymes in vitamin biosynthetic pathway in plants, converts 2-methyl- 6-phytyl-l,4-benzoquinol to 2,3-dimethyl-6-phytyl-l,4-benzoquinol.

甲基。6。叶绿基。1，4-苯醌甲基转移酶是天然维生素E合成途径中的关键酶之一，催化MPBQ甲基化，生成DMPBQ。

Glycine wasn't a repressible substrate for the reaction catalyzed by SHMT. The effect of concentration of glycine on reaction rate was consistent with M-M Equation. Under the conditions used in this research, V〓 was 0.212mmol/L/min and K〓 was 0.0198mol/L.

甘氨酸对丝氨酸羟甲基转移酶催化的合成反应无底物抑制作用，且甘氨酸浓度对酶反应速度的影响服从米氏方程的形式，实验条件下V〓为0.212mmol／L／min，K〓为0.0198mol／L。

Objective To compare the expression and its significance of glutathione peroxidase and glutathione-S-transferase in hepatic tissue in oral drinking arsenic exposed mice.Methods 60 mice were divided into control group,sodium arsenite group and sodium arsenate group at random.

目的 比较不同价态的砷对小鼠脐组织中谷胱甘肽过氧化物酶和胎盘型谷胱甘肽-S-转移酶表达的影响，探讨氧化应激在慢性砷暴露致肝损伤中的作用。

Myriocin is a potent inhibitor of sphingosine biosynthesis by blocking the first enzyme in the pathway, serine palmitoyltransferase.

嗜热菌杀酵母素是一种有效的鞘氨醇生物合成抑制剂，能阻止合成途径中第一个酶——丝氨酸软脂酰转移酶。

Results: Mdroxyprogesterone acetate plus E2 (10-8 M) stimulated both the mRNA levels and activities of sulfatase (at 10-8-10-6 M) compared to E2 only.

用同位素标记的底物和RT-PCR技术分别测定硫酸酯酶和硫转移酶的活性和mRNA表达水平。

Truncated fragments of the amplified sequence were then subcloned into the 5＇of eukaryotic expression vectors with luciferase or chloramphenicol acetyltransferase gene as reporter genes.

将它们进行删切后在荧光酶和氯霉素乙酰基转移酶报告基因真核表达载体的上游构建了18个亚克隆并分别转染Jurkat细胞。

Objective This study was to investigate the roles of TATA or G71R mutation of the undine 5'-diposphate-glucuronosyl transferase 1A1(UGT1A1) gene, A388G mutation of the organic anion transporter 2(OATP2), glucose-6-phosphate dehydrogenase(G-6-PD) deficiency to the development of neonatal hyperbiliidbinemia.

目的 探讨葡萄糖醛酸转移酶UGT1A1 TATA盒或G71R突变、有机阴离子转运因子2(OATP2)A388G突变、葡萄糖-6-磷酸脱氢酶(G-6-PD)缺乏对新生儿高胆红素血症发病的作用。

Studies also indicated that genistein exsists not only in soybeans but also in many kinds of plants such as vegetables and fruits.As a potential anticancer agent, the actional mechanisms of genistein mainly includes as follows:First, genistein can depress the activity of protein tyrosine kinase and transduction pathways for the phosphorylation of receptors and mitosis signal. So genistein can lead to cells' proliferation depressed. Second, genistein has minimal effects of phytoestrogens. It can be combined with estrogen receptor and improve the synthesis of cellular sex hormone binding glulobin, and improve the activity of UDP-glucuronyl transferase. Through these pathways, it can inhibit the cell activity of breast cancer and prostate cancer.

作为一个很有潜力的抗肿瘤物质，三羟异黄酮的作用机制主要包括：①抑制蛋白酪氨酸激酶活性，可阻抑PTK引起的受体磷酸化和有丝分裂的信号传递，导致癌细胞增殖受抑；②弱雌激素作用：可通过与体内雌激素受体结合，并可增加细胞内性激素结合球蛋白的合成，增加UDP-葡糖醛酸转移酶的活性等途径抑制乳腺癌和前列腺癌细胞活性；③拓扑酶Ⅰ和Ⅱ抑制剂，抑制细胞活性；④上调细胞周期性负性调节因子P21WAF1/CIP1的表达，使之负性调节因子作用增强；⑤可阻止胰岛素样生长因子-Ⅰ、肝细胞生长因子和神经生长因子的作用而抑制肿瘤生长；⑥其他：抗氧化作用、抑制热休克蛋白、诱导细胞凋亡、抑制新生血管生成和抑制多种耐药相关蛋白等。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。