中国寄生虫学与寄生虫病杂志 ›› 1994, Vol. 12 ›› Issue (2): 85-91.

• • 上一篇    下一篇

不同地区间日疟原虫环子孢子蛋白基因两侧翼DNA序列的比较

黄天谊,程勤,黄亚明   

  1. 贵州省寄生虫病防治研究所; 澳大利亚昆士兰医学研究所; 广西壮族自治区寄生虫病研究防治所
  • 收稿日期:2017-01-06 修回日期:2017-01-06 出版日期:1994-05-31 发布日期:2017-01-06

DNA SEQUENCING OF CIRCUMSPOROZOITE PROTEIN GENES OF PLASMODIUM VIVAX FROM FOUR DIFFERENT COUNTRIES IN WEST PACIFIC REGION: COMPARATIVE STUDY ON THE FLANK SEQUENCES

  • Received:2017-01-06 Revised:2017-01-06 Online:1994-05-31 Published:2017-01-06

摘要: 用多聚酶链反应(PCR)技术、引物标记周期反应测序法和自动核酸序列分析仪直接测定我国和3个西太平洋国家共18个间日疟分离株的环子孢子蛋白(CSP)基因两侧翼DNA序列,并与BZL、Belem、Sal-1、N.K.和Thai等地区株进行比较。结果表明不同地区间日疟CSP基因N端和C端非重复序列高度保守;18个分离株与5个地区株的上述序列基本一致。但在C端可变区则有较多变异,包括一些尚无记载的地理局限性变异。

关键词: 间日疟原虫, 环子孢子蛋白, DNA序列分析, 多聚酶链反应

Abstract: P.vivax CSP gene of 18 isolates from infected blood of patients living in China,Philippines,Solomon Islands and Papua New Guinea in West Pacific region has been sequenced from both terminal end.The total readable sequence in most isolates was about 725 base pair (bp),including the first two repeat units (70-330 bp) to the N terminus,and the last two repeat units to the C terminus (763-1 228 bp). Comparison and analysis of these obtained sequences with the published sequences of N.K., Thai., Belem,Sal l.and BZL strains showed that:the N and C terminus sequences flanking the centre repeats in CSP gene were highly conserved in all isolates and identical with the 5 published sequences but a double base pair substitution in each end and a remar kable polymorphism in the postrepeat variable region in C terminus were found,including some diversities with obvious geographic characteristics which have not been reported pre viously .

中图分类号: