核苷

The existence of isonucleoside in oligonucleotide makes chain twist and decreased the stability of duplex.

结论寡核苷酸中的异核苷使链发生扭曲，从而导致双链稳定性降低。

These three cladograms describe the evolutionary relation of microRNAgenes. We find the cladograms of 8-mer based on Spearman correlation and distancedefinition are consistent with the actual evolution relation among species.

所得的三种microRNA进化树与物种实际进化关系相当，其中，又以核苷多联体的Spearman相关和物种距离定义所得进化树与实际进化关系最为接近。

Aim To search for the structural insights into the effect of isonucleoside on DNA:DNA duplexes and their thermal stabilization.

目的 研究异核苷的掺入对DNA：DNA双链的结构特征以及杂交热稳定性的影响。

Entrez is the integrated, text-based search and retrieval system used at NCBI for the major databases, including Nucleotide and Protein Sequences, Protein Structures, Complete Genomes, Taxonomy, and others.

本网站是一个综合性的、全文搜索系统，使用NCBI为主要数据库，包括核苷和蛋白质次序，蛋白质结构，完全基因组，分类法和其他。

Entrez is the integrated, text-based search and retrieval system used at NCBI for the major databases, including Nucleotide and Protein Sequences, Protein Structures, Complete Genomes, Taxonomy, and others.

本网站是一个综合性的，全文搜索并取回的系统，使用NCBI为主要数据库，包括核苷和蛋白质次序，蛋白质结构，完全基因组，分类法和其他。

Nucleoside analogs can decrease virus production by inhibiting the viral polymerase; however, complete clearance by these drugs is not common because of the persistence of the HBV episome.

核苷类似物可能通过禁止病毒聚合酶减少病毒生产；然而，完全清除由这些药物不是共同的由于HBV的坚持episome。

The opening reaction of epoxide 17 by nucleobases was achieved regioselectvely to give designed isonucleosides in reasonable yield.

通过环氧化合物17的碱基开环反应，区域选择性地合成了设计的异核苷并利用制备HPLC分离了区域异构体。

Methods Fifteen healthy, female SD rats were employed in the experiment. Sensitized systematically with keyhole limpet hemocyanin, the animals were inoculated with the same antigen through cochlea basal turn into the labyrinth. Adminstrated 5-bromo-2′-deoxyuridine intraperitoneally, the rats were sacrificed and the temporal bones were harvested at 3, 7,14 day after labyrinth vaccination respectively. The frozen sections of the decalcified samples were dealt with H-E staining and immunohistohemical methods to investigate the cellular infiltration, BrdUrd and IgG positive cells in the ES.

选用SD大鼠15只，以钥孔虫戚血蓝蛋白（keyhole limpet hemocyanin，KLH）全身免疫后，经耳蜗底回钻孔以相同抗原进行内耳免疫，然后分别在内耳免疫后3、7和14 d腹腔注射溴脱氧尿嘧啶核苷（bromodeoxyuridine，BrdUrd）后处死动物，取颞骨经组织学处理制作冰冻切片，用免疫组织化学技术观察内淋巴囊的细胞浸润、增殖和IgG细胞的分布状况。

The reversible genes were particularly involved in xenobiotic functions (managing chemicals not produced in the body), nucleotide metabolism and mucus secretion.

可逆基因一般和异生物质功能（管理不由身体产生的化学物质）、核苷代谢、黏液分泌有关。

Viroid A tiny infectious agent found in plants that is similar to a virus but lacks a capsid, consisting simple of a circle of RNA, 300-400 nucleotides long.

类病毒：在植物体中发现的一类极其微小的感染源，与病毒类似但不具有衣壳，只包括一个环状的 RNA 分子，长约300~400个核苷。

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。