|本期目录/Table of Contents|

[1]豆晓霞,刘洋,李敏,等.布鲁氏菌Ⅳ型分泌系统蛋白BMEI0742基因的原核表达及功能分析[J].江苏农业科学,2018,46(12):33-38.
 Dou Xiaoxia,et al.Prokaryotic expression and functional analysis of Brucella Ⅳ secretion system protein BMEI0742 gene[J].Jiangsu Agricultural Sciences,2018,46(12):33-38.
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布鲁氏菌Ⅳ型分泌系统蛋白BMEI0742基因
的原核表达及功能分析
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第46卷
期数:
2018年第12期
页码:
33-38
栏目:
生物技术
出版日期:
2018-06-20

文章信息/Info

Title:
Prokaryotic expression and functional analysis of Brucella Ⅳ secretion system protein BMEI0742 gene
作者:
豆晓霞 刘洋 李敏 荆明龙 李明奇 王小凤 陈创夫 张辉
石河子大学动物科技学院/动物疾病防控兵团重点实验室,新疆石河子 832000
Author(s):
Dou Xiaoxia et al
关键词:
布鲁氏菌BMEI0742基因鉴定原核表达反应原性
Keywords:
-
分类号:
S855.99
DOI:
-
文献标志码:
A
摘要:
为构建布鲁氏菌Ⅳ型分泌系统蛋白BMEI0742基因的原核表达载体,并进行表达、鉴定。从羊种布鲁氏菌(Brucella melitensis)16M株的基因组中克隆BMEI0742基因片段,亚克隆到pMD19-T载体中并测序,克隆至表达载体pET-28a,构建重组质粒pET-28a-BMEI0742利用大肠杆菌进行表达,并进行Western-Blot检测,对该蛋白功能进行生物信息学分析。成功构建了pET-28a-BMEI0742原核表达载体,SDS-PAGE检测结果显示,重组蛋白的分子量约是50 ku,BMEI0742蛋白可与布鲁氏菌阳性血清发生特异性反应,表明其具有良好的反应原性。生物信息学分析显示,该蛋白无跨膜区结构,不存在信号肽,二级结构以α-螺旋为主并利用Phyre2服务器成功构建了该蛋白的三维模型。本研究成功表达了布鲁氏菌Ⅳ型分泌系统蛋白BMEI0742基因,并成功获得了BMEI0742蛋白,该蛋白具有与布鲁氏菌自身蛋白相同的抗原性,为布鲁氏菌翻译延伸因子Tu,为进一步研究其免疫性和保护性以及在布鲁氏菌的致病机制奠定基础。
Abstract:
-

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备注/Memo

备注/Memo:
收稿日期:2016-12-29
基金项目:国家国际科技合作专项(编号:2015DFR31110)。
作者简介:豆晓霞(1989—),女,河南焦作人,硕士研究生,研究方向为动物病理学研究。E-mail:727340051@qq.com。
通信作者:张辉,教授,研究方向为传染病诊断与致病机制。E-mail:allanzhh@yahoo.com。
更新日期/Last Update: 2018-06-20