牛乳头瘤病毒E5的蛋白与真空H(+) -ATPases的16K成分结合
D J Goldstein1, M E Finbow, T Andresson
1Department of Pathology, Georgetown University, Washington, DC 20007.
Nature
|July 25, 1991
概括
牛乳头瘤病毒1型E5蛋白与真空ATPase组件,一个16K蛋白质结合. 这种与质子的相互作用可能解释了在E5诱导的细胞转化过程中观察到的细胞变化.
科学领域:
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
- 病毒学 病毒学
背景情况:
- 牛乳头瘤病毒1型 (BPV-1) E5蛋白是一个关键的转化剂.
- E5局限于内膜,并与细胞蛋白相互作用.
- E5诱导增长因子受体的氨酸酸化.
研究的目的:
- 为了识别由BPV-1 E5转化蛋白结合的细胞16K蛋白.
- 阐明E5-16K蛋白相互作用在细胞转化中的功能意义.
主要方法:
- 同免疫沉测试以确定相互作用的蛋白质.
- 在细胞区内的蛋白质定位的分析.
- 对E5表达的反应中生长因子受体酸化的评估.
主要成果:
- 与E5相关的16K蛋白被确定为真空ATPases (v-ATPases) 的一个子单元.
- 这种16Kv-ATPase成分是各种囊泡和膜复合体中发现的不可分割的膜蛋白.
- 与16Kv-ATPase蛋白的E5相互作用与生长因子受体酸化相关.
结论:
- 该BPV-1 E5蛋白与真空ATPases的16K子单元相互作用.
- 这种相互作用可能会扰乱内体内中的质子的功能.
- 由E5破坏v-ATPase功能可能是转化过程中观察到的形细胞变化的基础.
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