组氨酸

TLC analysis demonstrated that highly purified HDC protein was able to decarboxylate histidine to form histamine Fig.

薄层色谱分析表明，HDC的高度纯化的蛋白质能够decarboxylate组氨酸形成组胺（图2bii）。

2Ai. In addition, cell extracts from E. coli JM109(DE3) cells harbouring the recombinant plasmid pAM28 were able to decarboxylate the histidine present in the reaction to histamine, whereas extracts prepared from control cells containing the vector plasmid alone did not.

此外，从大肠杆菌细胞提取物大肠杆菌JM109中（DE3）中细胞重组质粒pAM28窝藏能够decarboxylate在本组氨酸为组胺反应，从控制细胞制备含有载体质粒提取物，而仅仅没有。

The results of comparative analysis on NCBI-BLAST indicated that the cloned fragment contained 812 nucleotides and shared a homology of 90% with the reported sequence of germin gf-2.8 gene while its amino acid sequence shared a homology of 96%,A majority of the nine differences between and among the two sequences involve equivalent amino acids.

氨基酸序列的同源性为96％，其中有九个氨基酸不同，但基本上为同等氨基酸，并且符合germin中三组氨酸和一谷氨酸的草酸氧化酶活性位点的同源模型特征。

Xinjiang medicine's content of amino acid of fruit juice of mulberry fruit is concrete: 2,6-diaminocaproic acid 0.089, serine 0.044, histidine 0.025, glycine 0.049, ammonia 0.088, valine 0.057, 2-amino-5-guanidinovaleric acid 0.051, isoleucine 0.042, Radix Asparagi 0.068, 0.020, threonine 0.076, 0.022, 0.128, 0.069, third 0.048, benzene third 0.042 leucine glutaminic acid methionine hydroxyphenylaminopropionic acid.

新疆药桑椹果汁氨基酸含量具体为：赖氨酸0.089、丝氨酸0.044、组氨酸0.025、甘氨酸0.049、氨0.088、缬氨酸0.057、精氨酸0.051、异亮氨酸0.042、天门冬氨酸0.068、酪氨酸0.020、苏氨酸0.076、蛋氨酸0.022 、谷氨酸0.128、亮氨酸0.069、丙氨酸0.048、苯丙氨酸0.042。

In.particular, genes involving in histidine biosynthesis (hisJ、 hisG、 hisF、 hisH、 hisB and hisD) were significantly repressed in mutant strain, while other 5 genes such as fur-, ftn-, dps, yecl and bcp which related to iron homeostasis were up-regulated. In addition, after hns gene was knock-out, expression of sjh but not stpA, which encodes H-NS paralogues, increased significantly.

比较特别的是，6个参与组氨酸合成与代谢的基因hisJ、hisG、hisF、hisH、hisB以及hisD在突变体表达下调，而与铁代谢有关的5个基因fur、ftn、dps、yecI和bcp的表达明显上调。

Draw the structure of the predominant ionization state of histidine at pH1,4,8 and note that the ionization state can be approximated for each ionizable group independently.

画出组氨酸在pH1，4，8的主要解离状态的结构。注意每个可解离基团的解离状态都可以单独估计。

Draw the structure of the predominant ionization state of histidine at pH1,4,8 and note that the ionization state can be approximate d for each ionizable group independently.

画出组氨酸在pH1，4，8的主要解离状态的结构。注意每个可解离基团的解离状态都可以单独估计。

Histidine has three ionizable functional groups.

组氨酸有三个官能团。

At the same time, His, a specific scavenger of singlet oxygen, can remarkably inhibit the degree of destruction of photoinhibition on the components of PS Ⅱ.

同时，加入单线态氧的特异性清除剂组氨酸可明显遏制光抑制处理对PSⅡ各组分的破坏，这些结果说明单线态氧参与了PSⅡ的光破坏过程

It contains cordycepicacid, cordycepin, 12 varieties of free amino acid, secale cornutum, hexose, protein, Histidine and Vitamin B12 assisting infant development, as well as some microelements including strontium, kalium, natrium.

冬虫夏草是一种名贵的药材，其味微星，性温无毒，气清香，含有虫草酸，虫草素，12种游离氨基酸，麦角脂肪醇，六碳糖醇，蛋白质及助幼儿生长发育的组氨酸和维生素B12，还含有锶、钾、钠等微量元素。

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。