在E2交互活化域中保存的二氨酸基因调节mmuPV1复制和疾病进展
Jessica Gonzalez1, Marsha DeSmet1,2, Elliot J Androphy1,2
1Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN 46202, USA.
Pathogens (Basel, Switzerland)
|January 25, 2025
概括
小鼠乳头瘤病毒E2蛋白质
科学领域:
- 病毒学 病毒学
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
背景情况:
- 乳头瘤病毒E2蛋白调节病毒的转录,复制和分离.
- 翻译后的修改极大地控制了E2蛋白的功能.
- 交换活化域 (TAD) 中的一种保存的二氨酸基基因对各种乳头瘤病毒的E2功能至关重要.
研究的目的:
- 为了研究在MmuPV1 E2蛋白中保存的二氨酸基基因的作用.
- 为了确定这个图案中特定的氨酸残留物 (K112和K113) 的功能意义.
- 探索K113中的乙化在MmuPV1 E2活性中的潜在调节作用.
主要方法:
- 用于改变MmuPV1 E2蛋白内特定的氨酸残留物,采用了位点定向的突变发生.
- 实验室试验用于评估E2介导的转录和短暂的复制.
- 在体内研究评估了突变E2蛋白诱导形成和疾病进展的能力.
主要成果:
- K112的突变完全取消了E2介导的转录和短暂的复制在体外.
- K113转变为谷氨胺 (Q) 废除了转录和减少了体外复制,而氨酸 (R) 突变仍然具有功能.
- 两种K113突变在体内都诱导了,但K113Q突变显示疾病进展延迟.
结论:
- 氨酸112 (K112) 对于MmuPV1 E2的转录和复制至关重要.
- 素113 (K113) 的乙化可能作为MnuPV1 E2活动的抑制机制.
- 乙化K113可能会调节乳头瘤病毒的发病性.
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