Tumour Suppressor Signalling Networks laboratory, UCL Cancer Institute, University College London, WC1E 6BT, London, United Kingdom.
Cell Signal. 2011 Sep;23(9):1433-40. doi: 10.1016/j.cellsig.2011.04.007. Epub 2011 Apr 21.
The family of Mps One binder (MOB) co-activator proteins is highly conserved from yeast to man. At least two different MOB proteins have been identified in every eukaryote analysed to date. Initially, yeast genetics revealed essential roles for Mob1p and Mob2p in the regulation of mitotic exit and cell morphogenesis. Studies in flies then showed that dMOB1/MATS is a core component of Hippo signalling. Loss of dMOB1 resulted in increased cell proliferation and decreased cell death, suggesting that MOB1 acts as tumour suppressor protein. Recent work focused primarily on mammalian cells has shown how hMOB1 can regulate NDR/LATS kinases, a function that can to be counteracted by hMOB2. Here we summarise and discuss our current knowledge of this emerging protein family, with emphasis on subcellular localisation, protein-protein interactions and biological functions in apoptosis, mitosis, morphogenesis, cell proliferation and centrosome duplication.
Mps One 衔接蛋白(MOB)辅激活因子家族在从酵母到人高度保守。迄今为止,分析的每种真核生物中至少鉴定出两种不同的 MOB 蛋白。最初,酵母遗传学揭示了 Mob1p 和 Mob2p 在有丝分裂退出和细胞形态发生调节中的重要作用。随后在果蝇中的研究表明,dMOB1/MATS 是 Hippo 信号的核心组成部分。dMOB1 的缺失导致细胞增殖增加和细胞死亡减少,表明 MOB1 作为肿瘤抑制蛋白发挥作用。最近主要集中在哺乳动物细胞的研究表明 hMOB1 如何调节 NDR/LATS 激酶,hMOB2 可以拮抗该功能。在这里,我们总结和讨论了我们对这个新兴蛋白家族的现有认识,重点是亚细胞定位、蛋白-蛋白相互作用以及在细胞凋亡、有丝分裂、形态发生、细胞增殖和中心体复制中的生物学功能。