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登革病毒大片段NS3基因扩增的方法探讨 被引量:3

Studying of the Method of Am plifying Large N S3 Gene Frag ment of Dengue Virus
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摘要 目的:探索一种快速、实用的扩增登革病毒大片段基因的方法。方法:用登革2 型新几内亚 C 株( D V2 , N G C 株)的核酸( R N A) 为模板,研究了在不同条件下( 病毒和其变性液的量以及c D N A 的浓度等) 通过逆转录聚合酶链式反应技术扩增大片段 N S3 基因,并对扩增的目的基因用巢式 P C R 进行了鉴定。结果:用大量的或小量的登革病毒培养上清中提取 R N A 的方法在一定条件下均可扩增出大片段 N S3 基因。结论:小量登革病毒提取 R N A 扩增大片段 N S3 基因法较大量登革病毒提取 R N A 扩增大片段 N S3 基因快速、实用。 Objective : To find out a rapid and practical method of amplifying large N S3 gene fragment of denguevirus . Methods : The large N S3 genefragment was amplified using ribonucleic acid( R N A) isolated from the New Guinea C( N G C) strain of dengue 2 virus ( D V2) as template by R T P C Rin different amounts of virus . Nested P C Rwas used toidentify the amplified target gene . Results : The large N S3 gene fragment were amplified from R N As extracted from largeor small amount of D V2 infected culture supernates . Conclusion : The method amplifying large N S3 gene fragment fromsmall amount of dengue virusis faster and more practicalthan that amplifying from large amount of dengue virus .
出处 《中山医科大学学报》 CSCD 1999年第3期185-187,共3页 Academic Journal of Sun Yat-sen University of Medical Sciences
关键词 登革病毒 遗传学 聚合酶链反应 基因扩增 Subject headings Dengue virus/genetics Genes ,viral new guinea polymerase chain reaction/ methods
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  • 1秦鄂德,中华流行病学杂志,1992年,13卷,特刊2期,256页 被引量:1
  • 2杨佩英,中华实验和临床病毒学杂志,1992年,7卷,26页 被引量:1

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