激素激活XI因子二次体是一个多阶段的过程,每个子单元
Awital Bar Barroeta1, Pascal Albanese2, Tereza Kadavá2
1Department of Molecular Hematology, Sanquin, Amsterdam, the Netherlands; Amsterdam Cardiovascular Sciences, Pulmonary Hypertension and Thrombosis, Amsterdam, the Netherlands.
Journal of thrombosis and haemostasis : JTH
|January 19, 2024
概括
凝血素在Pro520结合因子XI (FXI),然后移动到果1域进行激活. 这种多步骤的过程揭示了治疗出血和血栓形成障碍的新目标.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 血液静止 血液静止 血液静止
背景情况:
- 激素XI (FXI) 激活由蛋白酶如血栓是短暂的,很难研究.
- 了解FXI激活动态对于静血研究至关重要.
研究的目的:
- 确定血素-FXI结合接口.
- 阐明通过血栓激素介导的FXI激活的动态.
主要方法:
- 交叉连接质谱测量以绘制结合部位的地图.
- 模拟分子动力学以分析形状变化.
- 使用纳米体1C10来验证激活路径.
主要成果:
- 在Pro520.20的FXI光链上鉴定出血栓的结合接口.
- 为了激活,FXI经历了涉及果1域的构造变化.
- 血栓激素结合,但不激活前卡利克莱因,尽管保留了Pro520.
结论:
- FXI激活是一个多步骤的过程,由血素与Pro520结合启动.
- 凝血素迁移到果1域方便了切割部位的访问.
- 详细的相互作用分析为出血/血栓形成的治疗干预提供了潜力.
关键词:
在XL-MS中使用XL-MS第十一因子XI因子质谱测量质谱测量质谱测量质谱测量质量测量质谱测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量在此之前,Prekallikrein 已经完成了.血栓激素 血栓激素 是一种更多相关视频
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