›› 2008, Vol. 28 ›› Issue (4): 215-219.

• 论文 • 上一篇    下一篇

长爪沙鼠β-防御素基因的克隆与鉴定

  

  1. 1.浙江省医学科学院,杭州 310013;2.浙江大学动物科学学院,杭州 310029
  • 收稿日期:2008-06-05 出版日期:2008-04-30 发布日期:2008-04-30
  • 基金资助:
    浙江省医药卫生科学研究基金(编号 2005A002)

Clone and Identification of β-defensin Gene in Mongolian Gerbil

  1. 1. Zhejiang Academy of Medical Sciences, Hangzhou 310013, China;2. College of Animal Science, Zhejiang University, Hangzhou 310029,China
  • Received:2008-06-05 Online:2008-04-30 Published:2008-04-30

摘要: 目的 克隆长瓜沙鼠β-防御素基因序列,并对其进行鉴定及分析.方法 从长爪沙鼠小肠中提取总RNA,根据GenBank中大、小鼠的β-防御素的基因序列,通过防御素基因的保守性设计引物,采用RT-PCR技术得到预期的PCR产物,将所得的片段进行克隆、测序,并应用相关生物信息学软件对序列进行鉴定和分析,序列提交genbank.结果 Blast比较发现,最终测序的结果与小鼠β-防御素-1和大鼠β-防御素-1的同源性均都大于78%,genbank登录号为EU784838.结论 经测序鉴定证实该PCR产物为长爪沙鼠β-防御素基因1的一部分,且与大、小鼠的相应基因高度同源.

关键词: 长爪沙鼠, β-防御素, 克隆, 序列分析

Abstract: Objective To Clone p-defensin gene in Mongolian gerbil. Methods The primers was designed according to the published sequences in GenBank. A RT-PCR method was applied to clone the defens in beta 1 gene in small intestine of the Mongolian gerbil. The PCR products was sequenced and blasted with related sequences. Results The sequenced results presented that the product was highly identical to the defens in beta 1 gene in rat and mouse. The identification between the present sequence and that of rat or mouse was ranged from 85% to 78%,the GenBank Accession Number is EU784838. Conclusions The acquired sequence was a portion of defens in beta 1 gene, which presented highly identical to the same gene in rat and mouse.

Key words: Mongolian gerbil, β-defensin, Cloning, Sequence analysis, Identification