大肠杆菌

Moschus berezovskii IL-2 was cloned from Con-A stimulated peripheral blood mononuclear cells, and ligated with pIVID18-T vector, then transformed to Escherichia coli JM109. The positive recombinant was sequenced.

用林麝外周血单核细胞(peripheral blood mononuclear cells， PBMC)提取总RNA，RT-PCR扩增IL-2(interleukin-2， IL-2)，连接pMD18-T载体后转化大肠杆菌，筛选阳性克隆并测序。

Objective To explore the cell immunity of the 3rd stage larva of Musca domestica after being infected by Escherichia coli.

目的探讨家蝇3龄幼虫被大肠杆菌感染后的细胞免疫反应。

In order to develop a safe and effective immunoadjuvant to enhance the immunity and resistance of animals against infection, a novel CpG Oligodeoxynucleotides containing 11 CpG motifs was synthesized and inserted into the VR1012 plasmid, designated as VR1C. Then the recombinant VR1C was entrapped with Chitosan nanoparticles prepared by the method of ionic cross linkage, and employed to inject muscularly 3-weeks old Kunming mice; the blank VR1012 packed with CNP and saline were used to inoculate mice as the control groups. 28 days after inoculation, all mice were orally fed with 0.4ml 2x108CFU/ per mouse virulent hemorrhagic enteritis E. coli to challenge the resistance against infection.

为研制安全高效免疫调节剂增强动物免疫抗病能力，本实验设计合成含11个C pG基序的寡聚核苷酸，重组构建含CpG的VR1012质粒(VR1C)；制备壳聚糖纳米颗粒包裹重组质粒(CNP-VR1C)，肌注接种3周龄昆明小白鼠，设壳聚糖包裹空质粒和生理盐水对照组；接种后28天口服大肠杆菌攻毒观察小鼠天然免疫的变化和对强毒感染的抵抗力，Sandwich ELISA测定血清免疫球蛋白和白细胞介素含量。

Analysis of nuclear extracts of human cells has indicated a similar excision repair mechanism for nick-directed mismatch correction in higher cells, and several reconstituted systems that rely on purified human proteins have been described, such as hMutSα、hMutSβ、hMutLα. Recently, scientists discovered that nickel could be inhibitors of DNA repair. Nickel can greatly enhance the mutagenicity and genotoxicity of compounds in cigarette by inhibiting the nucleotide excision repair pathway in human cells. We have confirmed that nickel could inhibit MMR of E. coli and human and presumed that nickel inhibited repair before MutH incision of the MMR in E. coli. However, there is no evidence of mechanism of nickel inhibiting MMR in human cells.

镍是存在於香菸中的微量金属，近年来有学者发现镍是DNA修复反应的抑制剂，长期抽烟的人会容易因为香菸中化合物攻击DNA而引起突变，进而引起肺癌，而镍会抑制核苷酸移除修复系统（nucleotide excision repair；NER），所以使得体内的DNA损伤无法修复；过去实验室已经证实大肠杆菌的核酸配对错误修复系统会受到镍等重金属的抑制，并且推测出镍的抑制反应是抑制在修复反应的上游nicking的步骤；另外，也证实了人类的核酸配对错误修复系统也会受到镍的抑制，然而还没研究证实会抑制在核酸配对错误修复反应的哪个步骤。

Experiments were performed in three groups of mice,20 minutes later ,mice in control group were treated with 2ml PBS by ultrasonic nebulization for 20 minutes, mice in treatment group were treated with rhIL-10(10ng) by ultrasonic nebulization for 20 minutes.

结果：经DNA测序证实，克隆的hIL-10cDNA与文献报道的一致，应用ELISA方法检测证明在大肠杆菌中成功表达出了hIL-10，含量＞400pg/ml，检测其生物学活性与标准品无明显差异。

The transient expression of PpMinE using green fluorescent protein fusion in tobacco Nicotiana tabacum L.

在大肠杆菌中过量表达PpMinE导致细胞不正常分裂，产生无染色体的小细胞，这表明MinE的功能在进化上是保守的。

Although nonviable bacilli and metabolite did not improve apparent digestibility of energy in crop, they improved the apparent digestibility of energy in ileum.

高剂量（10〓cfu／g）死菌制剂显著降低嗉囔中乳酸杆菌数量（P.05），低剂量（10〓cfu／g）死菌制剂和口服代谢产物不显著影响嗉囔中乳酸杆菌和大肠杆菌数量。

Objective To construct the prokaryotic coexpression vector for lysis gene E and Staphylococcus nuclease gene and prepare highly purified E.

目的 构建噬菌体裂解基因E和核酸酶基因串联表达载体，制备高质量的大肠杆菌菌影。

Objective: To clone the complete gene of nucleoprotein of H3N2 subtype avian influenza virus, and to express recombinant NP in E.coli for the function research.

目的：获得H3N2亚型禽流感病毒核蛋白全长基因，并在大肠杆菌中表达，以用于对NP功能的研究。

In our experiment, the GADes gene from rat brain was cloned and expressed in E.coli, so as to make the recombinant GADes produced by gene technology for clinical application and further study on the relation between GAD and type 1 diabetes mellitus.Firstly, with the pUClS/GADes recombinant plasmid as template, the full-length encoding sequence of GADes was amplified by PCR, and cloned into pGEM-T vector. Secondly, the target gene was cut by EcoRI and inserted into restriction sites of pET42a vector for expression.

本研究首先用PCR方法，以pUC18/GAD_(65)为模板，扩增目的基因，克隆到pGEM-T载体中，构建pGEM-T/GAD_(65)重组质粒，然后用EcoRI酶切，切下的目的基因片段插入pET42a融合型表达载体中，经酶切鉴定和测序，证实插入方向、读码框架正确；重组表达质粒转化大肠杆菌BL21(DE_3)中诱导表达，表达产物经亲和层析纯化后获得了融合蛋白GST-GAD_(65)。

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。