期刊文献+

罗非鱼无乳链球菌glnR基因的克隆及原核表达

Cloning and Prokaryotic Expression of glnR Gene of Streptococcus agalactiae from Tilapia
下载PDF
导出
摘要 为给研究GlnR蛋白的功能奠定基础,将广西患病罗非鱼无乳链球菌glnR基因克隆并目的基因进行原核表达,根据GeneBank数据库中无乳链球菌基因组序列设计引物,扩增了罗非鱼源无乳链球菌的glnR基因,并通过pGEX-4T-3载体在大肠杆菌中进行原核表达。结果表明:扩增glnR基因的ORF全长372bp,IPTG诱导表达的最佳浓度为3.0mmol/L,最佳诱导时间为5h;在37℃下诱导,重组蛋白大部分以可溶性蛋白的形式存在。 In order to lay the foundation for studying on protein GlnR, the glnR gene of diseased tilapia S. agalactia from Guangxi was cloned and the prokaryotic expression of target gene was conducted. According to the glnR gene sequence of S. agalactiae published in GeneBank, the glnR gene of S. agalactiae from tilapia was amplified by PCR. Then the target gene was expressed in E. coli JM109 through the vector pGEX-4T-3. The results showed that the ORF of gln R gene was 372 bp, the optimal concentration of IPTG was 3.0 mmol/L and the best induction time was five hours. The fusion protein induced in 37℃ mostly existed in the form of soluble protein.
出处 《贵州农业科学》 CAS 北大核心 2013年第5期20-23,共4页 Guizhou Agricultural Sciences
基金 现代农业产业技术体系专项资金项目"国家罗非鱼产业技术体系"(CARS-49) 广西科技重大专项项目"罗非鱼规模化养殖生态工程研究与示范"(桂科攻1123006-3)
关键词 罗非鱼 无乳链球菌 glnR基因 原核表达 tilapia Streptococcus agalactiae glnR gene prokaryotic expression
  • 相关文献

参考文献18

  • 1柴家前,丁巧玲,王振龙,宋憬愚.罗非鱼链球菌的分离鉴定[J].中国预防兽医学报,2002,24(1):18-20. 被引量:60
  • 2刘永进,方开吉,刘志圣,田淑丽.网箱养殖罗非鱼暴发性鱼病及防治技术[J].淡水渔业,1995,25(1):25-26. 被引量:8
  • 3Rainard P,Boulard C. Opsonization of Streptococcusagalactiae of bovine origin by complement and anti-bodies against group B polysaccharide [J]. Infect Im-mun, 1992,60( 11) :4801-4808.
  • 4Bryan J D,Liles R,Cvek U,et al. Global transcrip-tional profiling reveals Streptococcus agalactiae genescontrolled by the MtaR transcription factor[J]. BMCGenomics,2008,16(9) :607.
  • 5Spellerberg B, Rozdzinski E,Martin S,et al. rgf en-codes a novel two-component signal transduction sys-tem of Streptococcus agalactiae [J]. Infect Immun,2002,70(5):2434-2440.
  • 6Fisher S H. Regulation of nitrogen metabolism in Ba-cillus subtilis; vive la differenceQ]. Mol. Microbiol.1999,32(2):223-232.
  • 7Nakano Y,Kimura K. Purification and characteriza-tion of a repressor for the Bacillus cereus glnRA oper-on[J]. J. Biochem.,1991,109(2):223-228.
  • 8Gustafson J,Str ssle A,H chler H, et al. The femClocus of Staphylococcus aureus required for Met-hicil-lin resistance includes the glutamine synthetase oper-on[J].J. Bacteriol.,1994,176(5) : 1460-1467.
  • 9Hendriksen W T, Kloosterman T G,Bootsma H, etal. Site-specific contributions of glutamine-dep -en-dent regulator GlnR and GlnR-regulated genes to vir-ulence of Streptococcus pneumoniae [ J]. Infect Im-mun, 2008,76(3) : 1230-1238.
  • 10Kloosterman T G,Hendriksen W T,Bijlsma J J, etal. Regulation of glutamine and glutamate metabolismby GlnR and GlnA in Streptococcus pneumoniae[J],J. Biol. Chem. ,2006 ,281(35) : 25097-25109.

二级参考文献26

共引文献72

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部