REST误解突变揭示了子宫纤维瘤中被破坏的Re1动机结合和联合抑制剂相互作用
Srineevas Sriram1, Chandresh Palanichamy1, P T Subash1
1Department of Biotechnology, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, India.
Frontiers in bioinformatics
|January 28, 2026
概括
在Re1-Silencing转录因子 (REST) 中的结构性干扰可能会导致子宫纤维瘤 (UF). 在REST中的Y283C突变削弱了其DNA结合和与共抑制剂的相互作用,可能导致纤维瘤生长.
科学领域:
- 遗传学和表观遗传学
- 分子生物学分子生物学
- 癌症生物学 癌症生物学
背景情况:
- Re1-Silencing转录因子 (REST) 对于基因沉默和维持细胞身份至关重要.
- 在子宫纤维瘤 (UF) 的发展中REST的具体作用尚不清楚.
- 在REST中的结构变化可能会影响其在纤维瘤生物学中的调节功能.
研究的目的:
- 在子宫纤维瘤的背景下调查REST的结构完整性.
- 为了确定在纤维瘤发育中可能受到影响的特定REST变异.
- 阐明REST结构性干扰如何导致子宫纤维瘤中基因调节的改变.
主要方法:
- 在REST中对938个误解SNP进行了广泛的in silico分析.
- 评估了十种灵长类动物的进化保护,以确定关键残留物.
- 利用结构建模,蛋白质-蛋白质和蛋白质-DNA对接,以及分子动力学模拟.
主要成果:
- 在保存的地点确定了五种结构性破坏性的REST变体 (Y31C,Y31D,L76Q,Y283C,L427Q).
- 这种Y283C变体与SIN3A的相互作用显著减少,DNA结合功能受损.
- 分子动力学模拟显示,Y283C增加了刚性,并在DNA结合时破坏了REST的稳定性.
结论:
- 休息是子宫纤维瘤生物学中的潜在调节因素.
- 结构性干扰,如Y283C突变,可以损害REST功能,导致转录失调.
- 在REST介导的基因沉默中出现的乱可能与子宫纤维瘤的发育和生长有关.
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