酰氨

Glutarnine synthetase is a key enzyme during this process.

谷氨酰胺合成酶是参与这一同化过程的关键酶。

The gene encoding leucyl-tRNA synthetase was cloned into this vector and expressed in high level.

将编码大肠杆菌亮氨酰-tRNA合成酶的基因插入到pMFT7H6的多克隆位点并在大肠杆菌JM109（DE3）中得到高表达。

Subtle changes, such as oxidative damage-induced loss of glutamine synthetase activity, may be a key event in stroke-induced brain injury.

一些细微的变化，比如氧化损伤诱导的谷氨酰胺合成酶活力丧失，可能是中风引起的脑损伤的关键环节。

Consequently,the cost of glutamine synthetase used inindustry was reduced.

业用谷氨酰胺合成酶的成本。

Activation of glutamine synthetase gene plays a pivotal role inbacteria in response of nitrogen starvation.

谷氨酰胺合成酶是生物体氮代谢调控中的关键酶。

Here, we present crystal structures of Saccharomyces cerevisiae tryptophanyl-tRNA synthetase in apo form and in complexes with various ligands.

氨酰tRNA合成酶负责将特定的氨基酸转移到相应的tRNA分子的氨基酸接受臂上，保证蛋白的正确翻译。

Methods Naloxone was synthesized starting from oxidation of thebaine, followed by hydrogenation, acylation, cyanidation, O-demethylation, hydrolyzation and N-allylation. The alternative method of O-demethylation, methane sulfonic acid/DL-methionine and hydrobromic acid were investigated.

在以蒂巴因为原料，经氧化、氢化、酰化、氰化、去氧甲基、水解、N-烯丙基化得到纳洛酮的合成路线中，分别采用甲磺酸／DL-甲硫氨酸和氢溴酸代替三溴化硼进行去氧甲基化和后续水解反应。

No significant changes in the protein signals were observed, except that the signal from albumin lysyl shifted towards upfield.

此外，没有观察到血清蛋白信号的明显变化，仅血清白蛋白赖氨酰信号随pH增高有高场位移。

This trial was conducted to study the effect of glutaminedipeptide on growth,immunity,antioxidance and small intestinal mucosa morphology of weanling piglets to investigate mechanism of alleviating weanling stress.

本文旨在研究谷氨酰胺二肽对断奶仔猪生长、免疫、抗氧化力和小肠粘膜形态的影响，探讨Gln二肽缓减仔猪断奶应激的机理。

Started from D-tyrosine, we obtained the tetramic acid 96 using Jouin reaction. The assembly of the second fragment 109 was stared from 1,4-butandiol,using asymmetric alkylation reaction developed by Oppolzer as a key step. Coupling of the tetramic acid 96 with 109 provided the key intermediate 110 according to Yoshii\'s procedure. After remove protective group and Sharpless epoxidation, we obtained the key intermediate 113. Its macrocyclization to form the final product is in progress.

本论文的第二章主要对Macrocidin A开展了合成工作，我们从D构型的酪氨酸出发，经过官能团转换；利用Jouin反应生成Tetramic acid 96，另外一个片断从1，4-丁二醇开始经过多步反应生成碘化物104，利用Oppolzer发展的手性樟脑磺酰胺为辅基参与的不对称烷基化反应，引入手性甲基，生成关键中间体109，接着通过Yoshii发展的方法连接96和109生成110，经过Sharpless不对称环氧化反应建立环氧化合物，然后脱去保护基得到关环前体113，分子内的Mitsunobu反应进行关大环反应正在进行之中。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。