天然氨基酸

完全酸水解表明糖组成为单一的葡萄糖，蛋白质组成主要为Ala等16种天然氨基酸。

Complete acid hydrolysis revealed that its carbohydrate moiety was composed of glucose only and its protein portion consisted mainly of Asx , Glx , Ala and other amino acids .

利用傅-克反应合成手性非天然氨基酸

21 GRAMS Synthesis of Chiral Unnatural Amino Acids by Friedel-Crafts Reaction

在此论文中我们主要讨论了应用非天然氨基酸标记和19F核磁共振相结合的方法研究蛋白质的结构和动力学，论文共分为六个章节。

In this thesis , we will discuss the method of combining unnatural amino acid labeling and nuclear magnetic resonance to study protein structure and dynamics .

以天然氨基酸为起始原料，经过简单的两步反应合成了β-氨基醇配体3a-3i。

From commercially available starting materials natural amino acid , P-amino alcohol ligands 3a-3i were prepared in two simple steps .

天然氨基酸中氢键的量子化学研究

Quantum Chemical Study on Hydrogen Bonds of Crude Amino Acids

天然氨基酸物质的不同制造技术的比较研究

Comparison of Different Production Techniques of Natural Amino Acids

非天然氨基酸β-Homo天冬酰胺的合成研究

Synthesis of Unnatural Amino Acid β - Homo Asparamide

介绍了从棉籽饼粕中提取天然氨基酸的步骤和方法。

A procedure for extracting amino acid from oil residue of cottonseed was introduced .

目的：探讨非天然氨基酸N-叔丁氧羰基化反应的适宜溶剂系统。

Objective : To study the solvent systems suitable for N-tert-butoxycarbonylation of non-natural amino acids .

基于天然氨基酸的双环手性季铵盐相转移催化剂的合成及催化性能研究

Synthesis and Catalytic Activities of Bicyclic Chiral Ammonium Salt Phase-Transfer Catalysts Based on Natural Amino Acids

含有络合功能基的非天然氨基酸的设计、合成及在生物活性肽中的应用

Design , Synthesis of Unnatural Amino Acids with Chelating Functional Groups and Their Application in Bio-active Peptide

非天然氨基酸定点突变成功地应用在腺苷酸激酶上来研究其作用机理。

Unnatural amino acid site - directed mutagenesis was applied to adenylate kinase to study its mechanism .

用转译工具在体内体外合成含有非天然氨基酸的蛋白质。

The use of translation equipment to generate proteins containing unnatural amino acids in vitro and in vivo .

目的：脯氨酸是蛋白质序列中常见的天然氨基酸之一，对蛋白质高级结构的形成具有重要作用。

Objective : Proline is one of the common canonical amino acids which plays an important role in protein stucture .

结论：水-四氢呋喃溶剂系统较适用于脂溶性大的非天然氨基酸N-叔丁氧羰基化，收率高，后处理简单。

Conclusion : Water-THF system is suitable for N-tert-butoxycarbonylation of lipophilic non-natural amino acids , with high yield and simple post-treatment .

天然氨基酸是廉价、易得的手性源，在不对称合成中广泛用作手性底物、手性助剂或者催化剂。

Chiral Compounds CHIRAL INDUSTRY As good chiral sources , proline and their derivatives have been widely applied in asymmetric catalysis .

当他们将重组基因导入大肠杆菌之后，产生了一种含有两个非天然氨基酸的重组钙调素蛋白。

When they inserted the modified gene into E.coli , it produced a modified calmodulin protein , incorporating the two unnatural amino acids .

利用螺旋理论，具体分析了天然氨基酸的构型、构象和其旋光方向间的关系。

The relationship between configuration and conformation of natural amino-acids and their rotatory direction is specifically analysed by applying the rule of helix theory proposed by author .

更新奇的是，这两个非天然氨基酸通过相互作用形成了一种特殊的化学键，这种化学键有别于通常情况下是蛋白质亚基结合在一起的化学键。

What makes the new amino acids especially interesting is that they react with each other to form a different kind of chemical bond from those that usually hold proteins together .

品高素食高汤采用大豆蛋白、天然氨基酸液及蔬菜浓缩汁调制而成素高汤，天然口味，甘甜鲜美；

Prepared and mixed by soybean protein , natural plant protein and amino acid , vegetable concentrates , sweet and fresh with natural taste , unique relish whet one 's appetite .

化学结构类似于天然氨基酸为原料制得的氨基酸型表面活性剂早在上个世纪一发现就进入研究阶段，并日益引起人们的重视。

The value of the structure which similar to natural amino acids as raw materials for the preparation of surfactants was recognized as soon as they were discovered early in the last century .

我们以各种天然氨基酸为起始原料合成手性离子液体并把其中一种手性有机催化剂应用于羟醛缩合反应中的研究。

The synthesis of new chiral ionic liquids , started from natural amino acid , was discussed , and the performances of the prepared ILs as an new catalyst were evaluated by aldol reaction .

含有17种天然氨基酸，其中9种为人体必需氨基酸，另含有较高的特殊氨基酸，如γ-氨基丁酸、蛋氨酸、谷氨酸和天冬氨酸；

And it also contains the 17 of natural amino acids and special amino acids such as y-aminobutyric acid , methionine , glutamic acid and aspartic acid , 9 of which are essential acids for body .

在我的研究工作中，基于上述新型松香胺-手性硫脲双功能催化剂的合成以及高效的催化体系的建立，利用不对称合成的策略，成功地发展了多种光活非天然氨基酸的合成方法。

In my research work , encouraged by these elegant advances and the establishment of novel efficient catalytic system , a variety of new optically active non-natural amino acids had been synthesized by using asymmetric synthesis strategy .

在20种天然氨基酸中，半胱氨酸、组氨酸、甲硫氨酸、酪氨酸和色氨酸能够吸附在纳米银表面与鲁米诺竞争氧化性物种，从而抑制该体系的化学发光。

Among 20 natural amino acids , cysteine , histidine , methionine , tyrosine and tryptophan were found to inhibit the CL due to their adsorption on the Ag nanoparticles and their competitive consumption for the reactive intermediates .

由于不对称合成非天然氨基酸可以用于肽类药物的设计筛选和构效关系的研究，多年来一直受到有机化学家的关注。

Due to the asymmetric synthesis of non-natural amino acids can be used for designing and screening peptide drugs and studying the structure-activity relationship , the organic chemists have paid great attentions to synthesize these compounds for years .

该法具有原料廉价易得、每步产率高和操作简单等优点。同时，探索了由天然氨基酸合成手性离子液体a的方法。

The method has the advantages of cheap raw materials , high yields of each step and simple operation , etc. At the same time , we explored the synthesis methods of chiral ionic liquid a from natural amino acid . 3 .

α-氨基膦酸酯做为天然氨基酸的含磷类似物，具有广泛的生物活性和多变的结构类型，化学及生物学研究者们已经对该类化合物的生物活性、分子设计及合成产生了浓厚的兴趣。

As a kind of natural amino acid analogues ,α - amino phosphonate constitute an important class of compounds with diverse biological activity and structure type , and have attracted the attention of chemical and biological researchers about their biological activity and molecular design .

手性C2对称硫脲催化剂的设计及合成我们从天然的氨基酸（S）-脯氨酸出发通过几种方法合成手性的C2对称硫脲，并比较了合成路线的优异性。

The Design and Synthesis of Chiral C2 Symmetry Thiourea A chiral C2 symmetry thiourea catalyst was prepared from ( S ) - proline , and different synthesis methods were discussed .

非天然D-氨基酸常用生物法或生物-化学法生产。

Non-natural D-amino acids are usually produced by enzymatic or chemo-enzymatic method .