生物技术通报 ›› 2013, Vol. 0 ›› Issue (11): 105-111.

• 研究报告 • 上一篇    下一篇

草鱼(Ctenopharyngodon idellus)NCCRP-1基因的克隆和原核表达

蔡佳1,2,3, 代礼平1,2,3, 王蓓1,2,3, 汤菊芬1,2,3, 黄郁葱1,2,3, 鲁义善1,2,3, 吴灶和2,3,4, 简纪常1,2,3   

  1. 1. 广东海洋大学水产学院,湛江 524088;2. 广东省水产经济动物病原生物学及流行病学重点实验室,湛江 524088;3. 广东省水产经济动物病害控制重点实验室,湛江 524088;4. 仲恺农业工程学院,广州 510225
  • 收稿日期:2013-05-27 出版日期:2013-11-14 发布日期:2013-11-14
  • 作者简介:蔡佳,男,博士,讲师,研究方向:水产动物病害防治;E-mail :matrix924@foxmail.com
  • 基金资助:
    国家“973”计划项目(2009CB118704)

cDNA Cloning and Prokaryotic Expression of NCCRP-1 from Grass Carp Ctenopharyngodon idellus)

Cai Jia1,2,3, Dai Liping1,2,3, Wang Bei1,2,3, Tang Jufen1,2,3, Huang Yucong1,2,3, Lu Yishan1,2,3, Wu Zaohe2,3,4, Jian Jichang1,2,3   

  1. (1. Fisheries College,Guangdong Ocean University,Zhanjiang 524088;2. Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animals,Zhanjiang 524088;3. Key Laboratory of Control for Diseases of Aquatic Economic Animals of Guangdong Higher Education Institutes,Zhanjiang 524088;4. Zhongkai University of Agriculture and Engineering,Guangzhou 510225)
  • Received:2013-05-27 Published:2013-11-14 Online:2013-11-14

摘要: 应用RACE PCR克隆了草鱼NCCRP-1 基因。结果表明,NCCRP-1 cDNA全长900 bp,开放阅读框为714 bp,编码237个氨基酸残基,预测分子量为27.3 kD,理论等电点为5.63。草鱼 NCCRP-1具有NCCRP-1蛋白家族保守的功能区域,与鲤鱼该基因(Cyprinus carpio L.)的相似性为 88%。将此基因定向插入原核表达载体pET-32a,构建重组质粒pET-NCCRP后转化BL21(DE3)进行诱导表达。SDS-PAGE分析显示在47.8 kD处出现特异性蛋白条带,Western blot检测表明草鱼NCCRP-1融合蛋白成功表达。

关键词: 草鱼, NCCRP-1, 克隆, 原核表达

Abstract: In the present study, grass carp(Ctenopharyngodon idellus)NCCRP-1 gene was cloned using RACE method. The full length cDNA of NCCRP-1 was 900 bp containing a 714 bp open reading frame(ORF), which encoded 237 amino acids with predicted molecular mass of 27.3 kD and a theoretical pI of 5.63. Amino acid alignment indicated that grass carp NCCRP-1 possessed consensus functional domians of NCCRP-1 family and shared 88% similarity with common carp NCCRP-1. The prokaryotic expression vector pET-NCCRP was constructed and then transformed into BL21(DE3). SDS-PAGE and Western blotting analysis indicated that the recombinant protein of grass carp NCCRP-1 was successfully expressed and molecular weight of expressed fusion protein was 47.8 kD.

Key words: Ctenopharyngodon idellus, NCCRP-1, Clone Prokaryotic expression