查询词典 dipeptide

We make chloroacetylaion to N-terminal of Asp, and then convert this compound to GD dipeptide by aminolysis. Followed the lipase -catalyzed peptide synthesis of RGD in aqueous water-miscible organic cosolvent is studied. We set up a new efficient reaction method to synthesize RGD tripeptide. The problem that peptide containing polar amino acid can not be synthesized readily in organic solvent was solved. We offer a new experimental proof for PPL-catalyzed peptide synthesis and make a more general analysis for the effect of some factors in theory.

采用氯乙酰基保护天冬氨酸，然后进行氨解生成GD二肽，利用猪胰脂肪酶催化合成RGD三肽，着重解决了亲水氨基酸/肽片段底物的溶解性与合成产率低的问题，建立了一种新的有效合成RGD三肽的反应模型，并探索解决了极性较强的氨基酸的酶促肽合成的问题，对脂肪酶催化合成肽的影响因素从理论上作了较全面的分析，为肽片段的缩合反应提供了一种新思路。

Here we describe a gene in the plant pathogen Streptomyces turgidiscabies that encodes a NOS homologue, and we reveal its role in nitrating a dipeptide phytotoxin required for plant pathogenicity.

作者描述了植物致病菌Streptomyces turgidiscabies中一种编码NOS同源物的基因并揭示了其在植物致病性中所需的对植物毒素二肽的硝化作用。

Here we describe a gene in the plant pathogen Streptomyces turgidiscabies that encodes a NOS homologue, and we reveal its role in nitrating a dipeptide phytotoxin required for plant pathogenicity.

氮氧化物在哺乳动物的细胞信号作用和免疫响应中发挥重要功能，当基因组测序研究显示细菌同哺乳动物一样也存在&氮氧化物合成酶&时，似乎可以说，氮氧化物在细菌中也可能扮演类似角色。

Careful analyses reveal the connections between the structures of tripeptide and dipeptides or amino acids.Based on the method proposed for dipeptides,a method for finding all important tripeptide conformers utilizing dipeptide and amino acid conformers is put forward.

分析给出了三肽稳定构型和相应的二肽及氨基酸稳定构型间的密切联系，基于二肽构型的寻找方法，发展了一种使用二肽和氨基酸稳定构型来高效寻找三肽稳定构型的方法。

The biologic feedstuff is made from corn straw , putamina of peanuts, potato vines by the way of ferment, and contains substances easy to be digested and absorbed, such as monosaccharide, dipeptide sugar and amino acids etc.

建设条件：秸秆生物是通过物理和微生物的作用将玉米秸、豆秸、花生秸、壳、红薯蔓等中纤维素、半纤维、木质素和硅酸盐降解为禽畜容易消化吸收的单糖、双糖和氨基酸等物质，同时在发酵过程中还产生并积累大量营养丰富的微生物菌体蛋白及其它有用的代谢产物(如：有机酸、醇、醛、维生素、抗生素)。

Three different mechanisms and the solvent effect of the electron transfer reaction between indol moiety and phenol moiety of the model system corresponding to the dipeptide of tryptophan and tyrosine have been studied by energy calculations.

对三种机理的理论研究探明了不同去质子化机理对电子转移的控制作用，并阐明了溶剂效应引起多步反应机制和双去质子化反应机制的合理性。

RESULTS The recombinant human prolidase expressed in COS-7 cells catalyzed the hydrolysis of organophosphorous compound soman as well as the hydrolysis of dipeptide Gly-Pro.

结果 COS-7细胞表达的人氨酰基脯氨酸二肽酶催化有机磷化合物梭曼的水解，也水解二肽化合物Gly-Pro。

With the aid of 〓P NMR examination for the process and ESI-MS/MS analysis of the derivatized products from the reaction intermediate, it is found that the corresponding phosphoryl chloride is generated after mixing the hydrogen phosphonate derivative with chlorodiisopropylamine, and they react with amino acid, amino acid methyl ester, dipeptide methyl ester or N-methyl imidazole carboxyl alkyl diamine respectively to form the desired products.

利用〓P NMR对反应过程监测以及对反应中间体衍生化后产物的ESI-MS／MS检测分析发现，氢亚磷酸二酯与氯代二异丙胺反应首先生成了磷酰氯中间产物，它继续与氨基酸、氨基酸甲酯、二肽甲酯、1-甲基咪唑-2-酰基烷基二胺等反应生成了目标产物。

Ten of them were new sequences and the other 7 were duplicated sequences. These sequences represented respectively: depeptide ABC transporter periplasmic dipeptide-binding protein, permease protein, et al. Conclusion, Gene fragments specific to MTZ-resistant H.

对以上17个差异片段进行单向测序，根据最高同源性比对结果，分别代表二肽ABC载体渗透酶、二肽ABC载体结合蛋白等10个基因的同源基因片段在耐药株中存在高拷贝数。

Amino acid composition method, dipeptide composition method, and amino acidcomposition distribution method were improved. Besides, pseudo amino acid compositionmethod was based on new structural descriptors of amino acid.

其中有三种特征值提取方法是对传统的氨基酸组成成分、二肽组成成分和氨基酸组成分布等方法进行了改进；第四种方法引入了新的氨基酸生化参数，采用伪氨基酸法提取特征值。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了