查询词典 amino-azo-benzene

The polar hydrophilous amino acid Thr is replaced by an unpolar hydrophobous amino acid Ile, a hydrogen bond changed in the higher structure and the point is far away from the active center, so it doesn't influence the activity and thermostability a lot.

亲水的Thr108突变成非极性的Met，导致与该位点空间相邻的N116亲水氨基酸His的极性残基——咪唑环产生空间电位排斥，从而造成His所在的β折叠构象发生改变。

It looks like that the molecular weight of these immunopeptides were very small, and it also showed that the hydrophobe amino acid on the bottom and alkaline amino acid were important structurals of the immunopeptides.

论文主要研究结论如下：目前已报道的140余种免疫活性肽其相对分子质量都较小，通常在肽链中含有碱性氨基酸或在末端具有疏水性氨基酸。

It is shown by Infrared spectra that relative concentration of amino formic acid ester has prominent relationship with compressive stress at 10% strain in the process of accelerated hygrothermal tests, which means that hydrolysis of amino formic acid ester is main factor resulting in decrease of compressive properties.

经红外光谱测定，在人工加速湿热老化试验过程中，材料的活性基团氨基甲酸酯的相对浓度与10%定应变压缩应力的相关性显著，氨基甲酸酯水解是材料室内贮存过程中力学性能下降的主要原因。

One of the amino acids, called prolene, is not really an amino acid, but imino acid.

有一种称为脯氨酸的氨基酸实际上并不是氨基酸，而是亚氨基酸。

E. the activation of amino acid, the elongation of peptide chain and the termination of the chain reaction, among which the activation of amino acid—the formation of imino acetoxyphosphoranes was the key step.

在这三步中，氨基酸的活化即氨基酸磷烷的形成是整个自组装成肽反应的最重要一步。

Racemic backbones 2-amino-2'-hydroxy-6,6'-dimethyl-l,l'-biphenyl la and 2-amino-2'-hydroxy-4,4',6,6'-tetramethyl-l,1'-biphenyl 1b were synthesized from o-methylaniline and 2,4-dimethylaniline via nitration, diazotation/iodination, Ullmann coupling, selective reduction, diazotation/hydrolysis and hydrogenation.

从邻甲苯胺及2，4-二甲基苯胺出发，经过硝化，重氮化-碘代，偶联，单还原，重氮化-水解及还原反应合成了消旋体骨架2-氨基-2'-羟基-6，6'-二甲基-1，1'-联苯1a和2-氨基-2'-羟基-4，4'，6，6'-四甲基-1，1'-联苯1b。

One route was that the amino-groups on the silica gel were transformed to tertiary amines by Eschweiler-clarke reaction that amine-groups react with formaldehyde and methanoic acid to prepare tertiary amines; the silica gel intermediates with tertiary amine groups reacted with chorohydrocarbons to prepare insoluble silica gel quaternary ammonium salt bactericides. Another route was that the amino-groups on the silica gel reacted with excessive chlorohexadecane; the preparing intermediates were quaternized with iodomethane to obtain insoluble silica gel quaternary ammonium salt bactericides.

一条路线是根据埃施韦勒-克拉克(Eschweiler-clarke)胺甲基化反应，进行胺基叔胺化反应，制成带有叔胺官能团的硅胶中间体，此中间体上的叔胺与卤代烷反应生成杀菌活性官能团季铵盐，制成硅胶类水不溶性季铵盐杀菌剂；另一条路线是带有胺反应活性中心的硅胶与过量正氯代十六烷反应，得到的中间体再用碘甲烷季铵化，得到最终产品——水不溶性季铵盐杀菌剂。

The red fungus consists of human body- needed amino acid, protein, fat, carbohydrate, vitamin, calcium, phosphorous, kalium, ironshot flavin and other microelement, as well as various amino acid that can not be produced by human bodies.

蛋白质、脂肪、碳水化合物、维生素、钙、磷、钾、铁核黄素、等微量元素，及多种人体内不能合成的氨基酸。

The relation between accessibility of amino acids and the property of enzyme was discussed, and the relation between accessibility of amino acids and the isoelectronic point of enzyme was studied.

酶总是在一个特定的pH范围内发挥功能。酸碱性质是它的一个重要的理化性质，等电点是它的一个重要的参数，研究它有利于更好的认识酶的功能。

The blue crosslinking polymeric dyes were synthesized with use of leucoquinizarin and polyvinylamine prepared from the Hofmann degradation of polyacrylamide. The maximum wave length was 597nm. The effects of temperature, the concentration of amino group, the pH value and the mole ratio of leucoquinizarin to amino group on the yield of red crosslinking polymeric dye were discussed.

以具有不同聚合度和不同胺化度的聚乙烯胺为骨架，以1，4—二羟基蒽醌隐色体为原料合成了蓝色可交联高分子染料，该染料的最大吸收波长为597nm，研究了反应温度、氨基浓度、pH值以及1，4—二羟基蒽醌隐色体与聚乙烯胺中氨基的摩尔比对反应的影响。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。