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Updated: Jun 24, 2026

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通过加密口袋映射加上X射线片段查,加强了与hnrnpa1结合的小分子的识别

Louise Dunnett¹, Sayan Das², Vincenzo Venditti²

¹Diamond Light Source Ltd., Harwell Science and Innovation Campus, Didcot OX11 0QX, UK.

bioRxiv : the preprint server for biology

|January 7, 2025

概括

研究人员在hNRNPA1蛋白中发现了神秘的口袋.

科学领域:

生物化学生物化学
分子生物学分子生物学
结构生物学结构生物学

背景情况:

人类异质核核核糖核蛋白 (hnRNP) A1对于转录后调节至关重要.
hnRNP A1的失调与神经退行性疾病和癌症有关.

研究的目的:

在 hnRNPA1 N-终端RNA结合域 (UP1) 中识别可用药物的口袋.
为了发现可以调节hNRNPA1RNA结合活性的小分子,用于治疗开发.

主要方法:

分子动力学 (MD) 模拟
图形神经网络 (GNN) 的口袋预测
对UP1蛋白质晶体进行碎片选.

主要成果:

在UP1域内识别了几个加密口袋.
发现了36个碎片击中绑定到参与RNA结合的功能区域.
观察到联体诱导的构造变化和稳定的动态蛋白区域.
获得了UP1的高分辨率结构,与小分子复合.

结论:

在 hnRNPA1 的 UP1 域中,存在可使用药物的加密口袋.
碎片查为开发 hnRNPA1 抑制剂提供了基础.
这些发现使得对 hnRNPA1 相关疾病的药物设计能够合理,并为研究拼接调节提供了工具.

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相关概念视频

Applications Of NMR In Biology

Applications Of NMR In Biology

Nuclear magnetic resonance (NMR) spectroscopy is a very valuable analytical technique for researchers. It has been used for more than 50 years as an analytical tool. F. Bloch and E. Purcell formulated NMR in 1946 and won the 1952 Nobel Prize in Physics for their work. Biological macromolecules such as proteins, nucleic acids, lipids, and organic molecules including pharmaceutical compounds, can be studied using this versatile tool that exploits the magnetic properties of certain nuclei.
The...