当前位置: 首页 > 文章 > 拟松材线虫两个HSP基因的克隆与分析 南京林业大学学报(自然科学版) 2009,33 (2) 1-4
Position: Home > Articles > Cloning and analysis of two HSP genes from Bursaphelenchus mucronatus Journal of Nanjing Forestry University(Natural Sciences Edition) 2009,33 (2) 1-4

拟松材线虫两个HSP基因的克隆与分析

作  者:
黄麟;郑维佳;吴小芹;叶建仁
单  位:
南京林业大学森林资源与环境学院
关键词:
拟松材线虫;热激蛋白;cDNA;快速扩增cDNA末端
摘  要:
采用RACE(快速扩增cDNA末端)技术从拟松材线虫中克隆了HSP70蛋白编码基因mc2和HSP90蛋白编码基因mc19,两个基因的全长cDNA分别为2 067和1 222 bp。生物信息学分析结果表明:mc2基因的ORF为1 926 bp,推测的编码蛋白包含642个氨基酸,分子质量为170.85 ku,等电点为4.69。mc19基因的ORF为1 083 bp,推测的编码蛋白包含361个氨基酸,分子质量为97.70 ku,等电点为4.83。多序列比对和系统进化树结果分析都表明,拟松材线虫的mc2、mc19基因的编码蛋白与植物寄生线虫HSP70和HSP90蛋白具有较高的同源性,拟松材线虫和松材线虫之间的亲缘关系尤其密切。
译  名:
Cloning and analysis of two HSP genes from Bursaphelenchus mucronatus
作  者:
HUANG Lin,ZHENG Wei-jia,WU Xiao-qin,YE Jian-ren (College of Forest Resources and Environment,Nanjing Forestry University,Nanjing 210037,China)
关键词:
Bursaphelenchus mucronatus;HSPs;cDNA;rapid amplification of cDNA end(RACE)
摘  要:
Two HSP genes mc2 and mc19 were cloned from Bursaphelenchus mucronatus and analyzed in this study.The full-length cDNA of genes,mc2 and mc19 are 2 067 bp and 1 222 bp long,respectively.The gene mc2 contains a 1 926 bp open reading frame(ORF) and the predicted protein consist of 642 amino acids with molecular weight of 170.85 ku and PI of 4.69.The gene mc19 includes a 1 083 bp ORF and the predicted protein consist of 361 amino acids with molecular weight of 97.70 ku and PI of 4.83.Alignment and phylogeny analyses showed that mc2 and mc19 had close relationship with HSPs from Nemathelminths species.The results also indicated that the two cloned HSP from B.mucronatus was highly closed to those from B.xylophilus.

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