甲基化的

Methylation of Y14 can be blocked by RS dipeptide phosphorylation.

此外，Y14的甲基化反应会被Y14之磷酸化抑制。

Reaction conditions are studied, and the result shows that it is better to adopt mercuric oxide or mercuric fluoride as fluorination catalyst with reaction temperature -20~-10℃.

结果表明，采用氧化汞或氟化汞作氟化催化剂、氟化氢作溶剂较好，适宜的反应温度为－20~-10℃，较长的反应时间(48 h)和增加氟化氢和催化剂的量有利于氟化。2-氯－5-三氯甲基吡啶的转化率和选择率均可达到97%以上。

The two-dimensional gel electrophoresis (2D) analysis followed by fluorography clearly displayed proteins preferentially methylated in PRMT1-expressing cell lysates suggesting that they were potential PRMT1 substrates.

在此研究中我们建立大量表现PRMT1 (protein arginine methyltransfrase 1)的细胞模式，并成功地以二维胶体电泳展开甲基化蛋白，发现有无大量表现PRMT1的HEK293细胞，在一些蛋白质甲基化作用的情形有明显差异。

It can be used as an environment-friendly intermediate and starting material for organic synthesis substituting the poisonous phosgene and dimethyl sulfate in carbonylation and methylation reaction.

它可以代替剧毒的光气和硫酸二甲酯作为环境友好有机合成中间体和起始物质，应用于羰基化和甲基化反应中。

A process for the carbonylation of allylic butenyl ether (for example, methyl crotyl ether, 3-methoxybutene-1 and mixtures thereof) or mixture of butadiene and alcohol and production of beta-gamma unsaturated carboxylic acid esters (for example, methyl-3-pentenoate) utilizing a rhodium-containing catalyst for example, dicarbonylacetylacetonate rhodium(I or the like promoted with an iodide-containing compound (for example, HI, AlI3, SnI4, TiI4, CrI3, and CoI2 or the like).

一种将烯丙型丁烯基醚(如甲基巴豆基醚、3－甲氧基丁烯－1及其混合物)或者丁二烯与醇的混合物羰基化的方法，以及由含碘化物化合物(如HI、AlI3、SnI4、TiI4、CrI3和CoI2或等效物)促进，用含铑催化剂如二羰基乙酰丙酮酸铑(I或其等效物制备β－γ不饱和羧酸酯(如甲基－3－戊烯酸酯)的方法。

Copolymerize methacrylic acid 3(4′-N,N-dimethylamino) ketone xanthate and acrylamide were copolymerized with N,N-methylene bisacrylamide,and then combined with silane ethylene group in the form of covalent bond on the quartz glass shee t to be made into a sensor,to determine ethanol.

将甲基丙烯酸3-(4′-N，N-二甲氨基)黄酮酯和丙烯酰胺、N，N′-亚甲基双丙烯酰胺共聚并共价键合在硅烷化的含乙烯基团的石英玻片上，制成了可测定乙醇的传感器。

The demethylation of DNA and acetylation of core histone reconstitute chromosome struction which is beneficial to gene transcription.

DNA去甲基化与组蛋白乙酰化导致染色质构象发生有利于基因转录的变化，基因具有转录活性。

During the process of nitrosamine-induced esophageal carcinoma, up-regulation of numerous genes may associate with the demethylation of genomic DNA at the early stage.

在亚硝胺诱导食管癌变过程中，大量基因的上调表达可能与早期基因组的低甲基化密切相关， Gadd45a可能参与了诱导早期的脱甲基作用。

This result provided the reference for adjusting dosage regimen of the drug subjected to the metabolism of demethylation and acetylation for clinic.

可为临床调整经去甲基化、乙酰化代谢药物的用药方案提供参考依据。

During the process of nitrosamine-induced esophageal carcinoma, up-regulation of numerous genes may associate with the demethylation of genomic DNA at the early stage. Gadd45a may be involved in the demethylation during the early weeks.

在亚硝胺诱导食管癌变过程中，大量基因的上调表达可能与早期基因组的低甲基化密切相关，Gadd45a可能参与了诱导早期的脱甲基作用。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。