| 韩晓旭,尚红,周立平,王亚男,张子宁,姜拥军.辽宁省艾滋病病毒1流行株膜蛋白V3环氨基酸变异特点[J].中华流行病学杂志,2003,24(8):704-707 |
| 辽宁省艾滋病病毒1流行株膜蛋白V3环氨基酸变异特点 |
| Mutation of envelop protein V3 loop in HIV- 1 epidemic in Liaoning province |
| 收稿日期:2002-06-10 出版日期:2014-09-16 |
| DOI： |
| 中文关键词: 艾滋病病毒 变异 亚型 |
| 英文关键词: Human immunodeficiency virus Mutation Subtype |
| 基金项目:国家重大基础研究规划“ 973”项目资助(G1999054107) |
|
| 摘要点击次数: 2400 |
| 全文下载次数: 823 |
| 中文摘要: |
| 目的 了解辽宁省艾滋病病毒 1(HIV 1)感染者 艾滋病 (AIDS)患者体内不同亚型HIV 1膜蛋白V3环氨基酸序列特征,突变种类特点。方法 提取含有整合HIV1前病毒的基因组DNA,巢式聚合酶链反应 (nest PCR)扩增后直接测序,并做序列排列比对、翻译和分析。结果 辽宁省HIV 1感染者感染病毒分属A、B’、C、G四种亚型,AIDS患者体内病毒V3环发生与T嗜性 SI表型有关的氨基酸突变形式 (11位出现R,13位出现S、T、N,19位出现V,20位出现Y,25、29位出现N等 )高于无症状感染组 (P<0.05 ),此外还发现GQGR、APGQ、RPGA、GLGR、RPGA等少见的V3环顶端四肽组成形式及第 5位H,34位S、F等罕见突变形式。结论 辽宁省AIDS人群中,A、B、C、G亚型HIV 1毒株V3环各位置出现氨基酸突变情况与国外对B亚型毒株的研究结果总体上相似,但发现一些罕见突变和少见V3环顶端四肽组成形式。 |
| 英文摘要: |
| Objective To study the characteristics of human immunodeficiency virus (HIV-1) V3 loop amino acid mutations among HIV-1 infected people in Liaoning province. Methods The whole blood samples of the HIV carr iers and AIDS patients were collected in Liaoning province, China and were extracted PBMC genome DN A. HIV-1 V3 and flanking region sequences were amplified by nest-polymerase chain reaction ( nes-t PCR ) with envspecific primers: ED5 PED12 and ED31 PED33. Products were sequenced dir ectly and sequences were aligned,translated and analyzed. Results In A IDS group, some amino acid mutations at specific position of V3 loop: S to R at position 11, H to S, T and N at position 13,A to V at posit ion 19, F to Y at position 20, Q or D to N at position 25 and 29, were found and all common mutations were associated with T tropic PSI phenotype. The frequency of such amino acid mutations in specific positions was hig her in AIDS group than that of the asymptomatic infection group(P< 0.05). In addition, we found so me unusual tetramer compositions on the tip of V3 loop: GQ GR,A PGR and RP GA, G LGR, R PGA in addition to some rare mut atio ns, such as: N to Hat position 5 and Hto S, Fat position 34. Conclusion The amino acid mutations on the V3 loop of HI V-1 epidemic in Liaoning province were in agreement with the results of subtype B, but we observed some rare mutations and unusual tetramer compositions on the tip of Vloop. |
|
查看全文
Html全文
查看/发表评论 下载PDF阅读器 |
|
| 关闭 |
|
|
|
