对混合折叠蛋白Cdt1的SAXS/MC研究揭示了单体,折叠的形状
Kyle P Smith1,2, Srinivas Chakravarthy3, Amit Rahi1
1Department of Cell & Developmental Biology, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA.
bioRxiv : the preprint server for biology
|January 23, 2024
概括
人类Cdt1蛋白具有内在无序的区域和不稳定的折叠域. 它的结构表明了支架的功能,可能由有约束力的合作伙伴来调节.
科学领域:
- 结构生物学 结构生物学
- 生物化学 生物化学
- 分子生物学分子生物学
背景情况:
- Cdt1蛋白对于DNA复制许可至关重要,并与MCM复合体结合.
- 此外,CDT1还在kinetochore中发挥作用,与微管和Ndc80复合体相互作用.
- 由于Cdt1的混合折叠/无序性质,理解其结构-功能关系具有挑战性.
结论:
- 最佳的Cdt1形状具有扩展的N终端/链接器区域和密切相关的折叠域.
- 这些形状支持支架蛋白的作用,可能在没有结合伙伴的情况下被硬质地阻碍.
- 这项研究提出了使用综合生物物理和计算方法分析混合折叠蛋白质的框架.
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