Spatial and temporal control of Rho family GTPases

许多基本的细胞功能需要细胞皮层的大规模组织。 这些包括胞质分裂，不对称细胞分裂，细胞迁移，和形成一个 上皮细胞骨架和细胞间连接的广泛组织是 在发育过程中需要驱动细胞，胚胎形状的变化， 组织中这些过程中的每一个都需要建立和维护 亚稳态结构域，其具有重要的细胞功能。的机制 这些结构域的组装仍然不完全清楚，部分原因是 这是用目前的工具功能性地解剖动态蛋白质组装体所固有的。 最近开发的光遗传学工具允许光介导的蛋白质活性控制， 高空间和时间分辨率的活细胞。这种新方法提供了一种 有力的手段来剖析潜在的分子机制， 流程.我们将联合收割机结合改变特定分子活性的能力， 空间和时间分辨率与传统的细胞生物学，成像，遗传， 生物化学方法，为了更好地了解细胞如何分裂， 塑造组织。

Many essential cellular functions require large scale organization of the cell cortex. These include cytokinesis, asymmetric cell division, cell migration, and formation of an epithelium. Extensive organization of the cytoskeleton and cell-cell junctions are required during development to drive changes in the shape of cells, embryos, and tissues. Each of these processes requires establishment and maintenance of metastable domains that serve important cellular functions. The mechanisms by which these domains assemble remain incompletely understood, in part due to the difficulty inherent in functionally dissecting dynamic protein assemblies with current tools. Recently developed optogenetic tools permit light-mediated control of protein activity in live cells at high spatial and temporal resolution. This novel approach provides a powerful means to dissect the underlying molecular mechanism underlying such processes. We will combine the ability to alter the activity of specific molecules with high spatial and temporal resolution with conventional cell biology, imaging, genetic, and biochemical approaches, in order to better understand how cells divide, polarize and shape tissues.