二肽

Objective To explore effects of glutamine on immune function ,plasma endotoxin level of the rectum cancer patients.

目的 探讨谷氨酰胺二肽对直肠癌术后患者免疫功能和内毒素血症的影响。

Based on the above experimental results, the DNA cleavage mechanisms of Ser-His and ethanolamine were proposed.

它们与丝组二肽一样，都可以在没有金属离子存在的条件下以水解方式切割DNA，这在世界上属首次报道。

The carboxylicgroup was not the necessary group. The presence of the imidazole group wouldenhance the cleavage activity.

羧基不是必需基团，咪唑基的存在可以使丝组二肽具有较高的切割活性。

The fragment m/z 132 is 19 amu above the standard fragment mass for leucine or isoleucine, respectively; therefore, one of these amino acids has to be the C-terminal part of the dipeptide.

破片 m/z 132 分别比亮氨酸或亮氨酸残留物的标准破片质量多19个原子质量单位。因此，这些氨基酸中的一个个只能是二肽中的羧基末端。

Comparing with the structure of heme group that covalently linked to the polypeptide chain in natural heme proteins, we simulated the covalent modification of artificial Fe-salophen complex with amino acid histidine or dipeptide cysteinyl-histidine, with the intention of providing useful information for design of metalloproteins containing nonnatural prosthetic group.

通过比较天然血红素蛋白中血红素与多肽链进行共价连接的结构，我们对组氨酸或二肽半胱氨酰-组氨酸共价修饰人工配合物Fe-salophen进行了计算机模拟，旨在为设计包含非天然辅基的金属蛋白分子提供有用的信息。

Objective To investigate the therapeutic effect of total parenteral nutrition associated with alanyl-glutamine on patients with acute severe pancreatitis.

目的 观察全胃肠外营养联合谷氨酰胺二肽在急性重症胰腺炎非手术治疗中的作用。

The catalytic domain of dipeptidyⅠpeptidase of FAPα is expressed, purified and renatured successfully, establishing a foundation of further research of FAPα.

成功表达、纯化和复性了FAPα二肽酶催化核心区域FAPαc，为深入开展FAPα的研究奠定基础。

Methods:Ten unbred pigs underwent small bowel autotransplantation and were divided randomly into two groups:GTPN and STPN.In STPN group(n=5),the pigs received isonitrogenous and isocaloric standard TPN for 28 days,while in GTPN group(n=5),the pigs received TPN supplemented with Gly-Gln for 28 days.

杂种猪10只，行自体小肠移植，术后随机分为两组，标准TPN组(STPN组，n=5)，接受标准TPN支持28天；Gly-Gln二肽组(GTPN组，n=5)，接受含Gly-Gln的TPN支持28天。

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。

The parenteral nutrition therapy with give glutamine can improve immune function and decrease the plasma endotoxin ,there were no significant different in the hospital stay and hospitalization expenses of the proctectomy patients.

结论含谷氨酰胺二肽的肠外营养能改善患者免疫功能，减轻术后患者内毒素血症，但对住院时间及住院费用没有明显影响。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。