选择性抗剂与酸盐受体结合的结构基础
Matthias Haffke1,2, Dominique Fehlmann3, Gabriele Rummel4
1Chemical Biology & Therapeutics, Novartis Institutes for BioMedical Research, Novartis Pharma AG, Basel, Switzerland. matthias.haffke@novartis.com.
Nature
|October 25, 2019
概括
研究人员确定了酸盐受体SUCNR1的晶体结构,揭示了其无活性状态和对抗剂结合的洞察力. 这些结构信息有助于开发针对性治疗与酸盐信号相关的疾病.
科学领域:
- 生物化学
- 分子生物学
- 药理学
背景情况:
- 糖酸是一种代谢中间体,通过SUCNR1受体 (GPR91) 调节线粒体的活性氧物种并作为免疫危险信号.
- SUCNR1将酸信号与高血压,血管生成和炎症联系在一起,导致性结肠炎,肝纤维化,糖尿病和类风湿性关节炎等疾病.
- 该受体在疾病发病中的作用使其成为重要的治疗点.
研究的目的:
- 为了阐明大鼠SUCNR1的高分辨率晶体结构.
- 确定参与选择性对抗剂结合的关键残留物.
- 确定与选择性抗剂结合的人性化大鼠SUCNR1的结构,用于药物发现.
主要方法:
- 用细胞内纳米体测定大鼠SUCNR1的高分辨率晶体结构.
- 基于结构的突变发生和放射性结研究.
- 分子建模和人类化大鼠SUCNR1对手复合结构的确定.
主要成果:
- 确定了与纳米体结合的非活性大鼠SUCNR1的晶体结构.
- 确定了关键的残留物,它们可以调节选择性抗剂的结合.
- 与选择性抗剂 (NF- 56- EJ40) 复合的人类化大鼠SUCNR1的高分辨率结构得到了解决.
结论:
- 对SUCNR1的无活性状态和对抗剂结合的结构洞察力为基于结构的药物发现提供了基础.
- 了解SUCNR1的结构和选择性对于阐明其体外和体内功能至关重要.
- 这项工作有助于开发针对各种疾病的SUCNR1介导途径的新疗法.
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