查询词典 gene

To obtain the tervalent fusion toxin gene, three toxin gene fragments from three species of Vibrio parahaemolyticus, Vibrio vulnificus and Vibrio mimicus were connected with the flexible linker using overlap extension PCR. The three toxin gene fragments respectively encode the mature proteins of the thermostable direct hemolysin of V. parahaemolyticus, the cytotoxin of V. vulnificus and the heat-labile hemolysin of V.

采用柔性Linker和重叠延伸PCR方法将三个毒素基因，即副溶血性弧菌的耐热型直接溶血素基因tdh、创伤弧菌的溶细胞毒素基因vvhA和拟态弧菌的热不稳定型溶血素基因vmhA的成熟蛋白基因片段进行串联，得到三联融合毒素基因tdh-vvhA-vmhA。

The research demonstrated that the sperm-mediated gene transfer method (direct injection of copulation thecae) can introduce foreign gene into silkworms, and that the foreign gene may be integrated in the chromosomes of silkworms with many copies in series and can be transmitted to G1 offspring.

本研究的结果证明了精于介导基因转移方法能将外源基因有效地导入并整合于家蚕基因组，导入的外源基因可能是以串联多拷贝的形式整合于家蚕基因组中，整合的外源基囚叶＠传午G；代。

A series PCR amplification for differential control strains and DNA samples diluted gradient (1:10) have been used to evaluate the specificity and sensitivity of PCR assay established.Results 1. Detection of GAS by PCR assay: The 345bp specific fragment of speB gene were amplified in all the tested GAS strains including three strains of scarlet fever, whereas it was detected in none of the differential control strains. The lowest limit of detection was 6.5pg genome DNA of GAS strain. 2. Detection of corynebacterium diphtheria by PCR assay: The318bp specific fragment of toxB gene were amplified in all the tested toxigenic corynebacterium diphtheria strains, whereas it was detected in none of the differential control strains. The lowest limit of detection is 850fg/μl genome DNA of corynebacterium diphtheria strain. 3. Detection of Lp by PCR assay: The 340bp specific fragments of mip gene were amplified in all the tested Lp strains, whereas it was detected in none of the differential control strains including three strains of non-pneumophila.

结果：1、用PCR方法检测A组链球菌：以A组链球菌致热性外毒素基因speB为靶序列，设计的扩增引物对全部对照菌株的扩增结果为阴性，而全部A组链球菌参考株均能扩增出特异的345bp片段，其中包括三株猩红热链球菌，检测敏感性为6.5pg／μl DNA.2、用PCR方法检测白喉杆菌：以白喉外毒素基因toxB为靶序列，设计的扩增引物对全部白喉杆菌参考株均能扩增出特异的318bp片段，而全部对照株的扩增结果为阴性，检测敏感性为850fg／μl DNA.3、用PCR方法检测嗜肺军团菌：以嗜肺军团菌巨噬细胞感染增强子基因mip为靶基因，设计的引物对嗜肺军团菌14个血清型参考株均扩增出特异的340bp片段，而鉴别对照株包括三株非嗜肺军团菌均未扩增出任何片段。

The paper aimed at the research status of main transgenic techniques in wheat and transferring the transeunt gene into wheat , the content include researches of the quality gene , resistant herbicide gene and other important genes transferred into the wheat with all kinds of methods , especially the way of particle bombardment .

其内容包括几种主要的小麦转基因方法和以基因枪法为主的各种转化技术对品质基因，抗除草剂基因和抗病等基因在小麦中的遗传转化研究进展

A strain NK13 was screened for a certain extent asymmetric hydrolyze the rac-ketoprofen Chloroethyl ester and identified as Bacillus megaterium. For the preparation of gene libraries, a positive clones was obtained from the tributyrin flat. The sequence of this esterase gene had been analysised, and contained the whole ORF of an esterase gene with the length of 933bp.

以本实验室筛选出的一株具有不对称拆分消旋酮基布洛芬氯乙酯的菌株NK13为材料，经初步鉴定为巨大芽孢杆菌，通过构建其基因文库，从中筛选得到一阳性克隆重组子pUC-NK。

Results The mecA gene and tst gene were detected,and were made the gene sequencing successfully.

结果 成功的对金黄葡萄球菌mecA基因和tst基因进行了检测，并进行基因测序。

Several important parents of hybrid rice were used in this study and transferred with the grobacterium tume faciens strain EHA105 harboring Ti plasmid pCAMBIA1301, which contains a hygromycin resistant gene as the selectable marker and a β-glucuronidase gene as the reporter gene.

选用我国籼型杂交稻中的几个重要亲本，以携带有双元载体pCAMBIA1301的根癌农杆菌EHA105为载体，以GUS基因的瞬间表达为依据，研究根癌农杆菌介导转化籼稻的影响因素，确立对转化频率有重要影响的几个条件。

The gene chip detecting methylation changes of 3 CpG in promoter region of p16 gene was constructed by designing a pair of probes which contain one methylated and one unmethylated probes. This pair of probes was used to detect 3 consecutive sites of CpG island in p16 gene.

设计1组特殊荧光标记探针以构建1种检测p16基因启动子区3个CpG位点甲基化改变的芯片，特殊荧光标记探针包括1对非甲基化探针和甲基化探针，检测相邻的3个CpG位点甲基化的程度。

The research on the Na+/H+ antiporter gene from Zostera marina L. can help to find the structural and functional difference of the different plant Na+/H+ antiporter gene and help to mastering the salt-tolerance mechanisms of the Na+/H+ antiporter gene.

研究大叶藻中Na~+/H~+逆向转运蛋白基因对于了解不同植物Na~+/H~+逆向转运蛋白基因在结构与功能上的差异，以及进一步深入了解该类基因的耐盐作用机理具有重要意义。

In this study,one pair of specific primer for mature chicken interleukin-18(ChIL-18) cDNA was designed and synthesized according to the previously published gene sequence of ChIL-18.The full length cDNA gene of ChIL-18 encoding mature active protein was amplified from LPS–stimulated MDCC-MSB1 cells by Reverse Transcription-Polymerase Chain Reaction.Then it was cloned into pMD18-T vector. Sequencing analysis showed that the nucleotide sequence of this ChIL-18 mature protein gene was 5l0bp including the stop coden and the same as the published ChIL-18 cDNA sequence by Schneider K.

本研究根据已发表的ChIL-18成熟蛋白(mature ChIL-18，mChIL-18)的cDNA基因序列，设计一对特异性引物，应用反转录-聚合酶链式反应(reverse transcription-polymerase chain reaction，RT-PCR)技术从脂多糖刺激10小时活化的马立克氏病成淋巴细胞样细胞系MDCC-MSB1的cDNA中扩增出编码鸡IL-18成熟活性蛋白的全长基因，对扩增片段进行T-A克隆，经PCR、酶切鉴定及测序验证，成功获得ChIL-18成熟蛋白完整基因的克隆。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。