›› 2010, Vol. 22 ›› Issue (6): 741-744.

• 论文 • 上一篇    下一篇

兔多杀性巴氏杆菌株外膜蛋白A基因克隆及序列分析

庞安娜1,鲍国连2,*,刘燕2,韦强2,肖琛闻2,季权安2   

  1. 1浙江师范大学 化学与生命科学学院,浙江 金华 321004;2浙江省农业科学院 畜牧兽医研究所,浙江 杭州 310021
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-11-25 发布日期:2010-11-25

Sequence analysis of outer membrane protein A gene of rabbit Pasteurella multocida

PANG An-na;BAO Guo-lian;*;LIU Yan;WEI Qiang;XIAO Chen-wen;JI Quan-an   

  1. 1College of Chemistry and Life Science, Zhejiang Normal University,Jinhua 321004, China;2Institute of Animal Husbandry and Veterinary, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-11-25 Published:2010-11-25

摘要: 参考GenBank中登录的多杀性巴氏杆菌序列设计了一对特异性引物,采用PCR方法分别扩增出兔多杀性巴氏杆菌C51-2-499株、C51-3-500株的OmpA全长片段,克隆到pMD18-T载体上进行序列测定和分析。结果表明:OmpA全长1068 kb,含有一个1068 kb的开放阅读框(ORF),编码353个氨基酸,相对分子量为37 969.8 kD,等电点pI为8.90。与6株参考菌株比较,核苷酸同源性为897%~99.1%,氨基酸同源性为82.9%~98.6%。

关键词: 兔多杀性巴氏杆菌, 外膜蛋白A, 序列分析

Abstract: According to OmpA gene of Pasteurella multocida published in GenBank, a pair of primers was designed. Using the primers, full\|length OmpA of C51-2-499, C51-3-500 was amplified by PCR. It was cloned into pMD18-T vector and then sequenced. The result showed that the full-length of OmpA was 1.068 kb containing a 1.068 kb open reading frame. The relative molecular weight of the deduced amino acid sequence (223 amino acid residues) was 37 969.8 kD and the pI value was 8.90. The alignment results showed that the nucleotide sequence homologies were 89.7%-99.1% and the deduced amino acid homologies were 82.9%-98.6% compared with six reference OmpA sequences of Pasteurella multocida published in GenBank.

Key words: rabbit Pasteurella multocida, outer membrane protein A, sequence analysis