在Canoe中稀释域对于将细胞结点与细胞骨连接至关重要,但它支持形态发生的强度
Emily D McParland1, T Amber Butcher1, Noah J Gurley1
1Department of Biology, University of North Carolina at Chapel Hill, CB#3280, Chapel Hill, NC 27599-3280, USA.
Journal of cell science
|February 7, 2024
概括
独木舟蛋白中的稀释域在发育过程中对细胞粘附不至关重要,但它缺少会损害组织形态发生. 这表明自然选择维持了蛋白质结构的强度.
科学领域:
- 细胞生物学 细胞生物学
- 发展生物学 发展生物学
- 生物化学 生物化学
背景情况:
- 附着结和actomyosin细胞骨架对于细胞形状的变化和细胞在形态发生过程中的运动至关重要.
- 多域蛋白Canoe (及其同类afadin) 对于在形态发生过程中维持组织完整性至关重要.
研究的目的:
- 研究在细胞形态发生过程中,Canoe蛋白内稀释域在细胞形态发生过程中的特定作用.
- 通过剖析其结构和功能组成部分,了解独木舟的作用机制.
主要方法:
- 利用生化,遗传和细胞生物学分析来研究独木舟的功能.
- 采用AlphaFold用于对Canoe稀释域的结构预测和与Myosin V.进行比较.
- 生成并分析了缺乏稀释域 (CnoΔDIL) 的独木舟突变.
主要成果:
- 缺乏稀释域 (CnoΔDIL) 的独木舟突变者是可行的和肥沃的,局部化到附着结.
- 降低CnoΔDIL的剂量导致部分功能受损和在眼睛发育过程中细胞重组的缺陷.
- 结构预测揭示了Canoe Dilute域与Myosin V之间的相似性和对比性,表明了潜在的共享功能,如二分化.
结论:
- 独木舟的稀释域并不严格地说是必不可少的,但在形态发生过程中有助于结节-细胞骨连接的稳定性.
- 这项研究强调了细胞过程的适应性和自然选择在维持蛋白质功能中的作用.
- 独木舟的稀释域在确保适当的组织发育中起作用,特别是在复杂的细胞重组中.
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