Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI 48109, USA.
Sci Signal. 2013 Feb 26;6(264):re1. doi: 10.1126/scisignal.2003669.
Inactivation of the small guanosine triphosphate-binding protein Ras during receptor signal transduction is mediated by Ras guanosine triphosphatase (GTPase)-activating proteins (RasGAPs). Ten different RasGAPs have been identified and have overlapping patterns of tissue distribution. However, genetic analyses are revealing critical nonredundant functions for each RasGAP in tissue homeostasis and as regulators of disease processes in mouse and man. Here, we discuss advances in understanding the role of RasGAPs in the maintenance of tissue integrity.
在受体信号转导过程中,小分子鸟苷三磷酸结合蛋白 Ras 的失活是由 Ras 鸟苷三磷酸酶 (GTPase) 激活蛋白 (RasGAPs) 介导的。已经鉴定出十种不同的 RasGAP,它们具有重叠的组织分布模式。然而,遗传分析揭示了每种 RasGAP 在组织稳态和作为小鼠和人类疾病过程调节剂中的关键非冗余功能。在这里,我们讨论了在理解 RasGAP 在维持组织完整性中的作用方面的进展。