CFAP410的C端形成了一个四度螺旋束,这对于其定位到基底体至关重要
Alexander Stadler1, Laryssa V De Liz2,3, Heloisa B Gabriel2
1Max Perutz Labs, Vienna Biocenter, Medical University of Vienna, Vienna 1030, Austria.
Open biology
|September 10, 2024
概括
CFAP410蛋白的C端域 (CTD) 控制其基底体局部. 一种突变 (L224P) 破坏了这个四重体组件,解释了CFAP410缺陷是如何导致人类纤毛病的.
科学领域:
- 细胞生物学 细胞生物学
- 结构生物学 结构生物学
- 遗传学 是一个遗传学.
背景情况:
- 毛是重要的器官;缺陷导致毛病.
- CFAP410对于纤毛发育和DNA修复至关重要,局部化到基底体.
- 在CFAP410的C终端域 (CTD) 中的L224P突变会导致脊髓甲基细胞形,轴性 (SMDAX).
研究的目的:
- 为了阐明CFAP410基底体局部的结构基础.
- 了解L224P突变导致纤毛病的分子机制.
主要方法:
- 从人类,Trypanosoma brucei和Chlamydomonas reinhardtii中获得的CFAP410 CTD的X射线晶体学.
- 在T. brucei. 中CFAP410局部化的功能分析.
主要成果:
- 在不同物种中保存了CFAP410 CTD的四度螺旋束形状.
- 在T. brucei. 中,为CFAP410基底体局部化,四重体组件是必不可少的.
- L224P突变破坏了四聚体形成和基底体局部化.
结论:
- CFAP410的基底体局部受其CTD四重体结构的调节.
- 由L224P突变引起的四重化中断提供了与人类纤毛病的机械联系.
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