一个蛋白质的cDNA与人类免疫缺陷病毒Tat transactivator相互作用
P Nelbock1, P J Dillon, A Perkins
1Department of Molecular Oncology and Virology, Roche Institute of Molecular Biology, Hoffmann-La Roche Inc., Nutley, NJ 07110.
Science (New York, N.Y.)
|June 29, 1990
概括
研究人员确定了Tat结合蛋白-1 (TBP-1),一种与人类免疫缺陷病毒 (HIV) Tat蛋白相互作用的新型蛋白质. TBP-1抑制了Tat介导的交换激活,为艾滋病毒研究提供了一个新的目标.
科学领域:
- 分子生物学分子生物学
- 病毒学 病毒学
- 蛋白质与蛋白质之间的相互作用
背景情况:
- 人类免疫缺陷病毒 (HIV) Tat蛋白对于病毒基因表达和复制至关重要.
- 了解Tat的调节机制是开发抗病毒策略的关键.
研究的目的:
- 识别和克隆与HIV Tat蛋白相互作用的蛋白质.
- 描述已识别的Tat相互作用蛋白的功能.
主要方法:
- 使用生物化Tat作为探针,对lambda gt11融合蛋白库的选.
- 克隆编码Tat相互作用蛋白的补充DNA,被指定为TBP-1.
- 定位研究和共传染实验,以评估TBP-1的功能.
主要成果:
- 一种新型蛋白质,Tat结合蛋白-1 (TBP-1),被确定并克隆.
- 在各种细胞系中检测到TBP-1表达,主要在细胞核中.
- 在同传染试验中,TBP-1 特别抑制了Tat介导的交换活化.
结论:
- TBP-1 负面调节HIV Tat活动,这表明它在控制病毒复制方面发挥了作用.
- 鉴定策略提供了一种发现调节蛋白质活性的蛋白质的方法.
- TBP-1 代表了艾滋病毒感染的潜在治疗点.
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