Regulation of Mammalian Ste20 (Mst) kinases #MMPMID25665457
Rawat SJ; Chernoff J
Trends Biochem Sci 2015[Mar]; 40 (3): 149-56 PMID25665457show ga
Initially identified as mammalian homologs to yeast Ste20 kinases, the Mst1/2 kinases have been widely investigated subsequent to their rediscovery as key components of the Hippo tumor suppressor pathway in flies. To date, our understanding of Mst substrates and downstream signaling outstrips our knowledge of how these enzymes are controlled by upstream signals. While much remains to be discovered regarding the mechanisms of Mst regulation, it is clear that Mst1 kinase activity is governed at least in part by its state of dimerization, including self-association and also heterodimerization with a variety of other signaling partners. Here, we review the basic architecture of Mst signaling and function and discuss recent advances in our understanding of how these important kinases are regulated.