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荷斯坦牛中性粒细胞β-防御素基因克隆及其原核表达质粒的构建
引用本文:刘双龙,王长法,杨宏军,杨少华,阿合买提·买买提,高运东,仲跻峰. 荷斯坦牛中性粒细胞β-防御素基因克隆及其原核表达质粒的构建[J]. 畜牧与兽医, 2007, 39(11): 24-26
作者姓名:刘双龙  王长法  杨宏军  杨少华  阿合买提·买买提  高运东  仲跻峰
作者单位:1. 山东省农业科学院奶牛研究中心,山东,济南,250100;新疆大学动物医学学院,新疆,乌鲁木齐,830052
2. 山东省农业科学院奶牛研究中心,山东,济南,250100
3. 新疆大学动物医学学院,新疆,乌鲁木齐,830052
基金项目:山东省中青年科学家基金项目(2006BS06010)和山东省农科院青年基金项目(2005YQ036)资助.
摘    要:根据已发表的牛β-防御素基因序列设计引物,从具有临床乳腺炎症状的荷斯坦奶牛血液中性粒细胞中提取RNA,克隆牛β-防御素基因并插入到原核表达载体pQE-30中,构建了原核表达质粒pQE-30/β-defesion。测序结果表明,克隆的目的基因长189bp,编码1个氨基酸,与已报道的牛β-防御素氨基酸序列同源性达95.6%。本研究为牛乳腺防御素的表达及功能、活性的研究奠定了一定的基础。

关 键 词:β-防御素  原核载体的构建  荷斯坦牛
文章编号:0529-5130(2007)11-0024-03
收稿时间:2007-04-02
修稿时间:2007-04-02

Cloning of bovine neutrophil cell β-defensins gene and its prokaryotic expression plasmids
LIU Shuang-long,WANG Chang-fa,YANG Hong-jun,YANG Shao-hua,Ahemaiti · Maimaiti,GAO Yun-dong,ZHONG Ji-feng. Cloning of bovine neutrophil cell β-defensins gene and its prokaryotic expression plasmids[J]. Animal Husbandry & Veterinary Medicine, 2007, 39(11): 24-26
Authors:LIU Shuang-long  WANG Chang-fa  YANG Hong-jun  YANG Shao-hua  Ahemaiti · Maimaiti  GAO Yun-dong  ZHONG Ji-feng
Abstract:A pair of specific primers were designed and synthesized according to the sequence of bovine β-defensin gene published in GenBank.Total cellular RNA was prepared from Holstein dairy cattle neutrophil cell by using total RNA isolation kit.The β-defesion gene was cloned and inserted into expression vector pQE-30 to get prokaryotic expression plasmids pQE-30/BNBD-7.This study showed that the β-defesion gene of Holstein cattle was 189 bp,coding 61 amino acids,and shared 95.6% homology with the BNBD-7 sequence registered in GenBank.The result of this research is helpful to further study of expression,biological function and activity.
Keywords:β-defensin  prokaryotic expression  Holstein dairy cattle
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