生物技术通报 ›› 2016, Vol. 32 ›› Issue (1): 149-155.doi: 10.13560/j.cnki.biotech.bull.1985.2016.01.025

• 研究报告 • 上一篇    下一篇

牦牛CAPN3基因的克隆及组织表达特异性

王英杰1, 2, 阎萍1, 2, 潘和平2, 吴晓云1, 2, 李明霞2   

  1. 1.西北民族大学生命科学与工程学院, 兰州 730030;
    2.中国农业科学院兰州畜牧与兽药研究所 甘肃省牦牛繁育工程重点实验室, 兰州 730050
  • 收稿日期:2015-04-14 出版日期:2016-01-09 发布日期:2016-01-22
  • 作者简介:王英杰, 女, 硕士研究生, 研究方向:分子育种;E-mail:1124063095@qq.com
  • 基金资助:
    西北民族大学研究生科研创新项目(ycx14165), 国家科技支撑计划项目(2012BAD13B05)

Cloning and Tissue-specific Expression of CAPN3 Gene in Yak

WANG Ying-jie1, 2, YAN Ping1, 2, PAN He-ping2, WU Xiao-yun1, 2, LI Ming-xia2   

  1. 1. College of Life Science and Engineering, Northwest University for Nationalities, Lanzhou 730030;
    2. Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050
  • Received:2015-04-14 Published:2016-01-09 Online:2016-01-22

摘要: 以牦牛背最长肌为材料, 采用RT-PCR法克隆了CAPN3基因的CDs区, 并对其进行生物信息学分析。结果表明, 牦牛CAPN3基因的CDs区长2 469 bp, 编码822个氨基酸残基;生物信息学分析显示, 其编码的蛋白属于非分泌表面蛋白, 含有35个磷酸化位点, 主要在细胞质和细胞核中发挥生物学作用。二级结构主要由α-螺旋、无规则卷曲、伸展链和β-转角组成, 具有CysPc、calpain-Ⅲ和EFh家族蛋白结构域, 无信号肽。牦牛CAPN3基因与黄牛、绵羊和猪在系统发育树上的距离最近。运用实时荧光定量分析CAPN3在不同组织中的表达量, CAPN3基因在牦牛的7种组织中均有表达, 但在背最长肌、胰脏中的表达量较高。

关键词: 牦牛, CAPN3基因, 克隆, 生物信息学分析, 表达模式

Abstract: Using the longissimus of yak(Bos grunniens)back as material, the CDs sequence of yak CAPN3 gene was cloned by RT-PCR, and it was analyzed by bioinformatics. The results indicated that the length of CDs in yak CAPN3 gene was 2 469 bp and encoding 822 amino acid residues. Bioinformatics analysis showed that the protein encoded by CAPN3 was the non-secretory surface protein, containing 35 phosphorylation site, and mainly played a biological role in the cytoplasm and nuclei. The secondary structure was mainly composed of α-helices, random coil, extended chain and β-turn, having the structure domains of CysPc, calpain-Ⅲ and EFh families and no signal peptide. The CAPN3 of yak was the most similar with those of Bos taurus, Ovis aries and Sus scrofa in phylogenetic tree. Real-time PCR analysis revealed the expressions of CAPN3 in varied tissues. There were expressions in all 7 tissues, and they were high in the muscle and pancreas.

Key words: Bos grunniens, CAPN3 gene, cloning, bioinformatics, expression pattern