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Title: Structural basis for Mob1-dependent activation of the core Mst–Lats kinase cascade in Hippo signaling

Journal Article · · Genes & Development
 [1];  [2];  [1];  [2];  [1]
  1. Univ. of Texas Southwestern Medical Center, Dallas, TX (United States). Dept. of Pharmacology
  2. Johns Hopkins Univ., Baltimore, MD (United States). School of Medicine. Dept. of Molecular Biology and Genetics. Howard Hughes Medical Inst.

The Mst–Lats kinase cascade is central to the Hippo tumor-suppressive pathway that controls organ size and tissue homeostasis. The adaptor protein Mob1 promotes Lats activation by Mst, but the mechanism remains unknown. Here, we show that human Mob1 binds to autophosphorylated docking motifs in active Mst2. This binding enables Mob1 phosphorylation by Mst2. Phosphorylated Mob1 undergoes conformational activation and binds to Lats1. We determine the crystal structures of phospho-Mst2–Mob1 and phospho-Mob1–Lats1 complexes, revealing the structural basis of both phosphorylation-dependent binding events. Further biochemical and functional analyses demonstrate that Mob1 mediates Lats1 activation through dynamic scaffolding and allosteric mechanisms. Thus, Mob1 acts as a phosphorylation-regulated coupler of kinase activation by virtue of its ability to engage multiple ligands. We propose that stepwise, phosphorylation-triggered docking interactions of nonkinase elements enhance the specificity and robustness of kinase signaling cascades.

Research Organization:
Univ. of Texas Southwestern Medical Center, Dallas, TX (United States)
Sponsoring Organization:
USDOE; National Inst. of Health (NIH) (United States)
Contributing Organization:
Johns Hopkins Univ., Baltimore, MD (United States)
Grant/Contract Number:
AC02-06CH11357; S10RR026461-01; GM085004; EY015708
OSTI ID:
1213722
Journal Information:
Genes & Development, Vol. 29, Issue 13; ISSN 0890-9369
Publisher:
Cold Springs Harbor Laboratory PressCopyright Statement
Country of Publication:
United States
Language:
ENGLISH
Citation Metrics:
Cited by: 114 works
Citation information provided by
Web of Science

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Cited By (36)

The Roles of NDR Protein Kinases in Hippo Signalling journal May 2016
MOB (Mps one Binder) Proteins in the Hippo Pathway and Cancer journal June 2019
Architecture, substructures, and dynamic assembly of STRIPAK complexes in Hippo signaling journal January 2019
STK3 is a therapeutic target for a subset of acute myeloid leukemias journal May 2018
Structural basis for autoinhibition and its relief of MOB1 in the Hippo pathway journal June 2016
Stable MOB1 interaction with Hippo/MST is not essential for development and tissue growth control. text January 2017
Ubiquitin-Dependent Regulation of the Mammalian Hippo Pathway: Therapeutic Implications for Cancer journal April 2018
Citron kinase interacts with LATS2 and inhibits its activity by occluding its hydrophobic phosphorylation motif journal March 2019
Loss of Mob1a/b impairs the differentiation of mouse embryonic stem cells into the three germ layer lineages journal November 2019
Osmotic stress‐induced phosphorylation by NLK at Ser128 activates YAP journal December 2016
Identification of the kinase STK25 as an upstream activator of LATS signaling journal April 2019
NIMA-related kinase 9–mediated phosphorylation of the microtubule-associated LC3B protein at Thr-50 suppresses selective autophagy of p62/sequestosome 1 journal January 2020
Hippo pathway inhibition by blocking the YAP/TAZ–TEAD interface: a patent review journal November 2018
Comprehensive profiling of the STE20 kinase family defines features essential for selective substrate targeting and signaling output journal March 2019
The LATS1 and LATS2 tumor suppressors: beyond the Hippo pathway journal June 2017
Altering Neurospora crassa MOB2A exposes its functions in development and affects its interaction with the NDR kinase COT1: Altering MOB2A affects development and COT1 interactions journal April 2018
Activation mechanisms of the Hippo kinase signaling cascade journal August 2018
PTEN–GSK3β–MOB1 axis controls neurite outgrowth in vitro and in vivo journal August 2018
Disease implication of hyper-Hippo signalling journal October 2016
MOB1 Mediated Phospho-recognition in the Core Mammalian Hippo Pathway journal April 2017
TRIP6 inhibits Hippo signaling in response to tension at adherens junctions journal December 2017
Hippo‐Yap/Taz signaling: Complex network interactions and impact in epithelial cell behavior journal May 2020
Hippo Signaling in Mitosis: An Updated View in Light of the MEN Pathway book November 2016
PR55α regulatory subunit of PP2A inhibits the MOB1/LATS cascade and activates YAP in pancreatic cancer cells journal October 2019
The Hippo Pathway and Viral Infections journal January 2020
Ndr/Lats Kinases Bind Specific Mob-Family Coactivators through a Conserved and Modular Interface journal April 2020
Stable MOB1 interaction with Hippo/MST is not essential for development and tissue growth control journal September 2017
Angiomotins stimulate LATS kinase autophosphorylation and act as scaffolds that promote Hippo signaling journal September 2018
The Hippo pathway in intestinal regeneration and disease journal May 2016
NIMA-related kinase 9–mediated phosphorylation of the microtubule-associated LC3B protein at Thr-50 suppresses selective autophagy of p62/sequestosome 1 journal December 2019
Regulation of Protein Interactions by M ps O ne B inder (MOB1) Phosphorylation journal April 2017
Ndr/Lats kinases bind specific Mob-family coactivators through a conserved and modular interface journal March 2019
Mob Family Proteins: Regulatory Partners in Hippo and Hippo-Like Intracellular Signaling Pathways journal March 2020
Two Antagonistic Hippo Signaling Circuits Set the Division Plane at the Medial Position in the Ciliate Tetrahymena journal December 2018
Pharmacological targeting of kinases MST1 and MST2 augments tissue repair and regeneration journal August 2016
The Mitotic Exit Network Regulates Spindle Pole Body Selection During Sporulation of Saccharomyces cerevisiae journal April 2017

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