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沙门菌非编码小RNA调控功能研究进展 被引量:4

Regulation function of non-coding small RNA in Salmonella
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摘要 细菌非编码小RNA(sRNA)是原核生物中新发现的基因表达调控因子,可在转录后水平调节基因的表达。沙门菌是sRNA研究的模式菌,研究者利用生物信息学预测技术、全基因组分析技术和高通量RNA测序技术,至少发现70余种沙门菌sRNA。它们通过感应温度,pH值,渗透压或氧分压等环境信号,利用碱基互补方式与靶标mRNA结合,调控靶标mRNA的翻译、降解或稳定性。通常一种sRNA有多个靶基因或靶位点,可调节多种基因的表达,在沙门菌营养物质代谢、外膜蛋白合成、群体感应和毒力表达等诸多生命过程中发挥重要的调控作用。 Non-coding small RNA(sRNA) is a new factor to regulate gene expression at post-transcriptional level in prokaryote.As a model organism for sRNA research,at least 70 sRNAs have been identified by biocomputational prediction approaches,the whole genome analysis and high-throughout sequencing technology in Salmonella species.These sRNA can regulate translation,degradation and stability of target mRNAs by base pairing with them while sensing environmental signal such as temperature,pH,osmotic pressure and oxygen concentration.One sRNA can regulate multiple genes expression via targeting mRNA or gene sites.They play an important regulation role in substance metabolism,outer membrane proteins synthesis,quorum sensing and virulence gene expression.
出处 《中国兽医学报》 CAS CSCD 北大核心 2011年第12期1803-1808,共6页 Chinese Journal of Veterinary Science
基金 国家自然科学基金资助项目(30571374 30771603 31072136) 江苏省属高校自然科学重大基础研究项目(08KJA230002) 科技部转基因生物新品种培育重大专项(2009ZX08006-004B)
关键词 沙门菌 SRNA 调控功能 Salmonella sRNA regulation function
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参考文献36

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同被引文献35

  • 1胡小翠,孙丽君,潘少坤,罗红梅,方琳,沈玮,曹祥荣.重组hIL-24原核表达载体的构建及表达[J].扬州大学学报(农业与生命科学版),2009,30(3):57-60. 被引量:3
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