|本期目录/Table of Contents|

[1]魏后军,范志宇,胡波,等.无毒性产气荚膜梭菌α毒素重组蛋白的自诱导分泌表达及免疫原性分析[J].江苏农业科学,2022,50(14):166-169.
 Wei Houjun,et al.Auto-induction secretory expression and immunogenicity analysis of a nontoxic recombinant Clostridium perfringens α-toxin[J].Jiangsu Agricultural Sciences,2022,50(14):166-169.
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无毒性产气荚膜梭菌α毒素重组蛋白的自诱导分泌表达及免疫原性分析(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第50卷
期数:
2022年第14期
页码:
166-169
栏目:
畜牧兽医与水产蚕桑
出版日期:
2022-07-20

文章信息/Info

Title:
Auto-induction secretory expression and immunogenicity analysis of a nontoxic recombinant Clostridium perfringens α-toxin
作者:
魏后军范志宇胡波仇汝龙陈萌萌宋艳华徐为中王芳
江苏省农业科学院兽医研究所/农业农村部兽用生物制品工程重点实验室,江苏南京 210014
Author(s):
Wei Houjunet al
关键词:
产气荚膜梭菌α毒素自诱导分泌表达免疫原性
Keywords:
-
分类号:
S852.4
DOI:
-
文献标志码:
A
摘要:
为获得分泌表达的无毒性产气荚膜梭菌α毒素重组蛋白并分析其免疫原性,根据A型产气荚膜梭菌α毒素基因序列,对α毒素的第176位组氨酸突变为天冬酰胺,同时对信号肽序列进行密码子优化,将化学合成的该序列插入到载体pET32a,获得重组质粒pET32a-αH176N,将重组质粒转化大肠杆菌BL21(DE3),通过自诱导的方法分泌表达重组αH176N蛋白。SDS-PAGE及Western blot分析结果显示,αH176N蛋白在乳糖1~2 g/L、28 ℃诱导条件下高效分泌表达。卵磷脂酶试验及小鼠毒力试验显示,αH176N蛋白失去磷脂酶C活性及毒性。免疫保护试验结果显示,αH176N蛋白与氢氧化铝胶配制成的疫苗,以0.25 mL/只免疫试验兔就能达到100%(6/6)的免疫保护效果,优于传统灭活疫苗免疫2 mL/只的保护效果。
Abstract:
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参考文献/References:

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[14]杜吉革,薛麒,朱真,等. 产气荚膜梭菌α毒素突变体的表达及免疫保护力评价[J]. 中国兽医学报,2019,39(2):265-270.
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相似文献/References:

[1]曾瑾,马臣杰,邓光存,等.大肠杆菌不耐热肠毒素B亚单位与产气荚膜梭菌毒素融合蛋白的免疫原性[J].江苏农业科学,2014,42(11):216.
 Zeng Jin,et al().Immunogenicity of fusion toxin protein of Clostridium perfringens and Escherichia coli heat-labile enterotoxin B subunit[J].Jiangsu Agricultural Sciences,2014,42(14):216.
[2]胡波,魏后军,范志宇,等.兔流行性腹胀病样品中产气荚膜梭菌的分离鉴定[J].江苏农业科学,2020,48(06):160.
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备注/Memo

备注/Memo:
收稿日期:2022-04-14
基金项目:江苏省农业科技自主创新资金[编号:CX(19)2017];现代农业产业技术体系建设专项(编号:CARS-43-C-1)。
作者简介:魏后军(1986—),男,江苏南京人,硕士,助理研究员,从事家兔疾病防治与兽医生物技术研究。E-mail:whj280941235@126.com。
通信作者:王芳,博士,研究员,从事家兔重要疫病致病机制及防控技术研究。E-mail:rwangfang@126.com。
更新日期/Last Update: 2022-07-20