发现 ppGalNAc-T2 的小分子调节器,在循环关闭过程中准其转移稳定状态
Danfeng Shi1, Xialin Luo2, Lu Wang3
1School of Chemical Engineering, Xuzhou College of Industrial Technology, Xuzhou 221140, China.
Bioorganic & medicinal chemistry letters
|August 18, 2025
概括
研究人员确定了聚酸N-乙-银胺基转移酶2 (ppGalNAc-T2) 的新型小分子调节剂,这是代谢和神经发育障碍的关键标. 这项研究通过对多个蛋白质状态进行查,为药物发现提供了新的策略.
科学领域:
- 生物化学和结构生物学
- 药理学和药物发现
- 计算化学的计算化学
背景情况:
- 聚胺N-乙-银氨基基转移酶2 (ppGalNAc-T2) 是人类代谢和神经发育障碍的重要治疗点.
- 之前的马尔科夫状态模型分析提供了关于 ppGalNAc-T2 在循环关闭期间的超稳定状态的原子级洞察力.
研究的目的:
- 为了利用ppGalNAc-T2的转移稳定构造来发现新的小分子调节器.
- 开发和验证基于结构的虚拟选策略,针对多个蛋白质转稳态.
主要方法:
- 在ppGalNAc-T2的转移性形状中发现了一种可药物共存的口袋.
- 使用加权评分策略对五种超稳定构造进行基于结构的虚拟选.
- 根据 conformational 种群和评分,选择了 29 种候选化合物进行实验验证.
主要成果:
- 发现了两种新型抑制剂 (化合物10和15),IC50值在微分子范围内,以及一种激活剂 (化合物12),其基线活性是基线活性的三倍.
- 分子建模显示,化合物12和15的结合方式与晶体结构中的素相似.
- 观察到化合物12和15的动态结合稳定性与ppGalNAc-T2的转移稳定性差异.
结论:
- 该研究提出了一种可行的策略,用于对多个蛋白质转移稳定状态进行虚拟查.
- 扩大了针对ppGalNAc-T2.2的小分子调节器的结构多样性.
- 提供新的抑制剂和ppGalNAc-T2的激活剂,促进相关疾病的治疗开发.
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