›› 2013, Vol. 40 ›› Issue (10): 42-46.

• 生物技术 • 上一篇    下一篇

鲤鱼肿瘤坏死因子受体相关因子6全长cDNA克隆及序列分析

贾生美1, 孙真1, 冯祥汝1, 陈义龙1, 沈雪飞1, 翟新新1, 张俊辉1, 杨振国1, 王文东2, 卢强1   

  1. 1. 吉林大学人兽共患病研究所, 吉林长春 130062;
    2. 吉林大学畜牧兽医学院, 吉林长春 130062
  • 收稿日期:2013-03-11 出版日期:2013-10-20 发布日期:2013-12-19
  • 通讯作者: 卢强 E-mail:qlu@jlu.edu.cn
  • 作者简介:贾生美(1986-),女,内蒙古人,硕士生,研究方向:兽医公共卫生。
  • 基金资助:
    国家自然科学基金项目(30972277);吉林大学基本科研业务费项目(200903250)。

Clonging and Sequence Analysis of Tumor Necrosis Factor Receptor-associated Factor 6 Full-length cDNA from Common Carp

JIA Sheng-mei1, SUN Zhen1, FENG Xiang-ru1, CHEN Yi-long1, SHEN Xue-fei1, ZHAI Xin-xin1, ZHANG Jun-hui1, YANG Zhen-guo1, WANG Wen-dong2, LU Qiang1   

  1. 1. Institute of Zoonoses, Jilin University, Changchun 130062, China;
    2. College of Animal Science and Veterinary Medicine, Jilin University, Changchun 130062, China
  • Received:2013-03-11 Online:2013-10-20 Published:2013-12-19

摘要: 本试验以鲤鱼外周血白细胞肿瘤坏死因子受体相关因子6(tumor necrosis factor receptor-associated factor 6,TRAF6)EST序列为基础,经地高辛标记后作为探针,对有丝分裂原刺激的鲤鱼外周血白细胞cDNA文库进行核酸杂交筛选,从重组噬菌体中经过两轮筛选获得阳性克隆。序列分析结果显示,该序列包含有5'-非编码区(5'-UTR) 25 bp;3'-非编码区(3'-UTR) 535 bp,存在2个mRNA不稳定基序ATTTA;开放阅读框ORF长1632 bp,编码543个氨基酸。预测蛋白质等电点为5.88,分子质量大小为61.773 ku。序列同源性比对结果表明,所获得的序列与GenBank上登录的鲤鱼TRAF6a基因同源性达99%。蛋白质序列分析结果发现,其具有TRAF家族的典型序列特征。

关键词: 鲤鱼; 肿瘤坏死因子受体相关因子6; 克隆; 序列分析

Abstract: The common carp tumor necrosis factor receptor-associated factor 6 (TRAF6) EST sequence was picked out from the cDNA library of peripheral blood leukocytes that was constructed. The cDNA library were separated from carp and stimulated with mitogen was screened by a probe labeled with DIG. The full-length TRAF6 cDNA was cloned from recombinant phages. Sequence analysis indicated that it encompasses with a 25 bp 5'-UTR and a 535 bp 3'-UTR,the open reading frame (ORF) of which was 1632 bp putatively coding 543 amino acids,and there were two motifs for mRNA instability ATTTA in the 3'-untranslated region. The predicted theoretical isoelectric point and molecular weight were 5.88 and 61.773 ku,respectively. Its nucleotide homology with carp TRAF6 from GenBank was up to 99%.The protein sequence analysis showed that it shared typical sequence features of the TRAF family.

Key words: common carp; TRAF6; clone; sequence analysis

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