查询词典 amino acid

Any of various natural or synthetic compounds containing two or more amino acids linked by the carboxyl group of one amino acid and the amino group of another.

肽一种自然或人工的合成物，包括二个或二个以上氨基酸，通过一个氨基酸的酸基和另一个的羧基结合而成

The amino and carboxyl groups themselves are basic and acidic, respectively; the amino group of one amino acid really combines with the carboxyl group of another.

氨基和羧基分别具有碱性和酸性，氨基酸的氨基易于和另一个氨基酸的羧基相结合，结果是消去一分子水和形成一个肽键。

Several coterminous bands could be observed by PAGE of natural Eisenin Ⅰ and several coterminous peaks of Eisenin Ⅰ were also detected with MALDI-TOF-MS when the molecular weight of three main peaks are 24, 645, 25, 052 and 25, 281, separately. The amino acid composition of Eisenin Ⅰ(pI. 8) is specilized with high content of acidic amino acids and low content of alkaline amino acids; At the same time, the content of Ser and Thr are quite high and that of Lys, Met, Phe and Trp are quite low. Eisenin Ⅰ is highly homologous with serine proteases. Then, by fibrin plate assay, Eisenin Ⅰ was identified to be a plasmin and also a plasminogen activator, and the fibrinolytic activity was inhibited by PMSF (an inhibitor of serine proteases).

赤子素Ⅰ氨基酸组成特点为高的酸性氨基酸和低的碱性氨基酸含量，且Ser、Thr含量高而Lys、Met、Phe和Trp含量很低；等电聚焦电泳测得其等电点pI.8.N端序列比较结果显示赤子素Ⅰ与丝氨酸蛋白酶类高度同源，纤维蛋白平板法测得赤子素Ⅰ同时具有纤溶酶和纤溶酶激酶活性；通过PMSF对赤子素Ⅰ纤溶酶活性的抑制实验证明，赤子素Ⅰ属于丝氨酸蛋白酶类。

Development period of the parasitoid pupa from the 5th instar larva fed on MSB was significantly longer. Length of cocoon of MSB treatment was significantly shorter than the control. However, no obvious differences were detected in the development periods of egg to larva, cocoon mass size, wasp emergence rate, sex ratio, longevity and forewing length of wasp between KMD1 and the control. 3. Amino acid content in the haemolymph of SSB after fed with transgenic rice Although there were no changes on the components of amino acids in the haemolymph of SSB after fed with two transgenic rice lines, there were some changes on relative contents of amino acids.

取食KMD1 36h后0天，20种氨基酸中除天门冬酰胺、丝氨酸、苏氨酸和甲硫氨酸外，其它16种氨基酸的含量都高于对照，其中组氨酸、甘氨酸、苯丙氨酸、异亮氨酸、赖氨酸差异达显著水平，谷氨酰胺、脯氨酸差异达极显著水平，与氨基酸总量表现一致的变化趋势；取食KMD1后1天，除天门冬酰胺、谷氨酰胺和赖氨酸高于对照外，其它17种氨基酸均较对照低，但仅丝氨酸、苏氨酸和色氨酸与对照差异显著；取食KMD1后3天，绝大多数氨基酸含量的变化与取食KMD1后0天的趋势一致，除丙氨酸和色氨酸比对照稍低，其它18种氨基酸均高于对照，其中精氨酸、缬氨酸差异显著，丝氨酸差异达极显著。

By analyzing the N-terminal amino acid sequence and searching in NCBI database, we found SBP117 is a member of proline-rich protein family and its function is unknown. The registered number is AAO72557.1. The composition of amino acids of this protein is similar with those proteins found in diatom and cucumber, but the sequence of amino acids is different. It means that SBPl 17 is a special protein for graminaceous plants to control the silica deposition.

通过N-末端测序和查询NCBI数据库，鉴定了SBP117是一种未知功能的富脯氨酸蛋白家族的成员，其蛋白质序列号为AAO72557.1，它的氨基酸组成与硅藻和黄瓜中发现的硅结合蛋白相似，但排列顺序明显不同，说明其可能是一种禾本科植物所特有的控制硅沉积代谢的蛋白。

By ~(31)P NMR, it was found that the racemization of amino acids was minimized. And it seams that L-amino acid has different reaction acticity from the D-amino acids.

其次，从磷化学的角度研究了氨基酸的立体化学对酯交换反应的结构效应，发现了以磷酰基保护的氨基酸以及含磷缩合试剂的方法进行多肽的合成，氨基酸消旋现象很少发生。

With the increase of excitory amino acids after cebral ischemia, the concentration of inhibitory acids such as γ-amino acid has been also increased to resist the toxicity of the excitory amino acids .

研究发现脑缺血后，伴随着兴奋性氨基酸的释放增加，脑内抑制性氨基酸如γ-氨基丁酸的浓度也升高，以拮抗兴奋性氨基酸的毒性作用。

The results shows that the young leaves and stems of the plant contained crude protein,crude fat,crude fibre,VB1,VB2,VB6,carotene,K,Na,Ca,Mg,Fe,Mn,Zn,Cu,palmic acid,stearic acid,oleic acid,linolic acid,linolenic acid,and and 17 kinds of amino acid.

结果表明，其嫩叶和嫩茎含有粗蛋白、粗脂肪、粗纤维、VB1、VB2、VB6、胡萝卜素、K、Na、Ca、Mg、Fe、Mn、Zn、Cu以及棕榈酸、硬脂酸、油酸、亚油酸、亚麻酸和17种氨基酸。

Swiss Dianas Development Center is the first in the world to introduce biochemical Botox-alike non-injection botulinus, which is composed of narrow spectrum amino acid link and peptide to form the nanometer active ingredient of amino acid that can quickly penetrate into the skin to change skin structure completely, to smooth away wrinkles, to promote cell energy and tissue recovery as well as to postpone the process of ageing.

Dianas研发中心首家全球性引进生化科技Botox－alike类肉毒杆菌不必打针。由专一性氨基酸键结合六胜肽所组成纳米级氨基酸活性成份，迅速渗透入皮肤，彻底改变肤质结构，抚平皱纹，增进细胞活力，促进组织复原，延缓老化。

The influence of Fmoc-protected amino acid, substitution and particle size of Wang resin and stirring modes on the condensation reaction efficiency of Fmoc-protected amino acid and Wang resin were studied.

研究了保护氨基酸、Wang 树脂取代度、树脂粒度、搅拌方式对Fmoc-氨基酸-Wang树脂连接效率的影响。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。