核苷酸

The PCR products respectively from a donor (TX2), a chronic hepatitis B patient (TX3), a chronic hepatitis C patient (TX4) and a hepatitis patient with unknown etiology (TX1) were sequenced by the dideoxy chain terminating method.

以套式聚合酶链反应测定TT病毒核酸，取献血员(TX2)、慢性乙型肝炎(TX3)、慢性丙型肝炎(TX4)及慢性非甲～戊型，非庚型肝炎患者(TX1)各1例TT病毒PCR阳性产物，以双脱氧核苷酸链终止法测定核苷酸序列。

Objective To investigate the relationship of excision repair cross-complementing 1(ERCC1), xeroderma pigmentosum group D, and breast cancer susceptibility gene 1(BRCA1) polymorphisms with the efficacy of platinum-based chemotherapy for treatment of the patients with advanced non-small cell lung cancer.

目的 探讨核苷酸切除修复系统的3个重要基因切除修复交叉互补基因1(ERCC1)、着色性干皮病基因D和乳腺癌易感基因1(BRCA1)的单核苷酸多态性与晚期非小细胞肺癌患者铂类药物化疗效果的相关性。

The partial sequences of exon Ⅰ of hormone-sensitive lipase genes in yak, cattle, zebu, and buffalo were analyzed. Comparisons of these sequences and the deduced amino acid sequences with the homologous HSL gene and protein sequences in other mammalian species including pig, human, mouse, and rat retrieved from the GenBank were carried out and finally a phylogenetic tree was constructed using the partial DNA sequences of the HSL genes in all species.

在对牛科中4种动物即牦牛、瘤牛、普通牛和水牛HSL基因外显子Ⅰ部分核苷酸序列进行测定的基础上，与Gen- Bank中其他物种相应基因核苷酸序列、氨基酸序列进行了比对分析，并构建了牦牛与其他物种间分子系统进化树。

Some gene mutations of rob gene of the 5 E.coli isolates were related to animal species and to the level of drug resistance by affecting on the expression level of AcrAB efflux pump.

不同源性大肠杆菌的rob基因的核苷酸序列与其动物源性有关，该基因的核苷酸序列的个别突变位点可能影响AcrAB外输泵的表达水平，进而影响其多重耐药水平。

The concentrations of free calcium ion, calmodulin and cyclic adenylic acid in the rat brain were determined.

结果显示，模型大鼠脑内游离钙离子、钙调素和环核苷酸含量降低，阿米替林可使模型大鼠脑内游离钙离子、钙调素浓度升高，而对环核苷酸则无影响。

The results were the basic information to further study SNPs of MC1R gene associated with plumage color on mule duck. By using the program of Blast on GenBank, the results indicated that duck had homology with 98.4% homology with branta bernicla at nucleotide level of MC1R gene, and 92.8％～98.2% homology with other birds.

为进一步研究半番鸭羽色MC1R基因单核苷酸多态性奠定了基础；通过BLAST进行相似性搜索，结果表明，鸭与黑雁MC1R基因的核苷酸序列同源性最高为98.4％，与其他家禽的同源性也保持在92.8％～98.2%之间。

The cDNA open reading frame of IFN-γis 501bp,encoding a putative 166 amino acid protein (19.327KD), the DNA sepuence homology of thiscaprine IFN-γand the corresponding caprine(U34232) cytokine is 99.4％, SignalP 3.0 analysisdemonstrated that the first 23 amino terminal aa sequence compose a hydrophobic signal sequence.

测序结果显示克隆的IFN-γ基因全长501个核苷酸，编码166个氨基酸，该基因与GenBank发表的山羊干扰素-γ基因序列(U34232)比较，核苷酸／氨基酸序列同源性为99.4％。

The nucleotide sequence of Cervus nippon FSH-α subunit was compared with other animals. It had the highest homology with goat, which reached 99％. There were only 3 nucleotides difference.

将梅花鹿FSH-α亚基基因核苷酸序列与其它动物该序列相比，结果显示梅花鹿与山羊的同源性最高，达到99％，它们之间只有3个核苷酸不同。

The nucleotide sequence of Cervus nippon FSH-β subunit was compared with other animals. It had the highest homology among Cervus nippon, sheep, goat and bovine in nucleotide sequence, which reached 92％~93％. There were 24~30 nucleotides difference among them.

将梅花鹿FSH-β亚基基因核苷酸序列与其它动物相比，结果显示梅花鹿与绵羊、山羊、牛的同源性最高，达到92％~93％，它们之间有24~30个核苷酸不同。

compared with the classic rabies virus, the strains shared the higher degree of homology with the street viruses obtained from thailand and philippines than other known strains especially that rabies virus isolated from chiroptera in america.

结果 同源性分析表明， 4株湖南街毒p和m基因核苷酸同源性分别为97.3%～99.4%和98.4%～99.8%；与其它i型狂犬病病毒和疫苗株核苷酸同源性比较，p基因分别为78.4%～90.2%和81.8%～86.8%；m基因的分别为81.8%～92.1%和84.7%～90.6%。4株野毒p和m基因氨基酸同源性分别为98.0%～99.3%和98.5%～99.0%。

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。