›› 2007, Vol. 34 ›› Issue (10): 37-40.

• 遗传繁育 • 上一篇    下一篇

猪白细胞介素-15基因的克隆及生物信息学分析

骆爱芳,郭万柱,宋振辉,韩国全   

  1. 四川农业大学动物生物技术中心,雅安 625014
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-10-20 发布日期:2007-10-20

Cloning and Phylogenetic Analysis of Interleukin-15 Gene in Rongchang Pig

LUO Aifang,GUO Wanzhu,SONG Zhenhui,HAN Guoquan 
  

  1. Animal Biology Technology Center, Sichuan Agricultural University, Yaan 625014,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-10-20 Published:2007-10-20

摘要: 参照GenBank登录的猪白细胞介素-15(IL-15)基因序列自行设计1对特异性引物,运用RTPCR技术从由刀豆蛋白A(ConA)诱导培养的荣昌猪外周血淋巴细胞扩增出猪IL-15基因的完整CDS序列,全长489 bp。同源比对结果表明,荣昌猪IL-15基因与已公布的2个猪种IL-15基因核苷酸同源性均为99.4%,与哺乳动物的同源性较高,与鸡的同源性较低。密码子偏爱性分析显示,荣昌猪IL-15基因在密码子使用上存在一定的偏爱性;分子进化分析结果表明其与人及哺乳动物IL-15基因的进化关系较近,而与禽类鸡的IL-15基因进化距离较远;结构域预测分析显示其与人的IL-15存在很大的相似性,可能在功能上有相似性。

关键词: 荣昌猪; 猪IL-15基因; 克隆; 生物信息学分析

Abstract: Using stimulated with ConA peripheral blood lymphocyte and a set of specific primers,the Interleukin-15 gene of swine was amplified by PCR.The primers were designed based on the published sequences of the swine IL-15 gene.The 489bp amplified DNA fragment was cloned into pMD18-T vetor.The results showed that the sequence identities were 99 between amplified IL15 gene and that from GenBank. Bioinformatics analysis indicated some Codon preference ,Phylogenetic tree analysis indicated that the have evolutionary relationship with mammalian IL-15,however showed distinct difference with chicken IL-15. There are distinct resemblance between pig IL-15 and human IL-15 by structural domain prediction analysis .

Key words: rongchang pig; pig IL-15; cloning; bioinformatics analysis

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