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Title: Autoregulation of the LIM kinases by their PDZ domain

Journal Article · · Nature Communications

LIM domain kinases (LIMK) are important regulators of actin cytoskeletal remodeling. These protein kinases phosphorylate the actin depolymerizing factor cofilin to suppress filament severing, and are key nodes between Rho GTPase cascades and actin. The two mammalian LIMKs, LIMK1 and LIMK2, contain consecutive LIM domains and a PDZ domain upstream of the C-terminal kinase domain. The roles of the N-terminal regions are not fully understood, and the function of the PDZ domain remains elusive. Here, we determine the 2.0 Å crystal structure of the PDZ domain of LIMK2 and reveal features not previously observed in PDZ domains including a core-facing arginine residue located at the second position of the ‘x-Φ-G-Φ’ motif, and that the expected peptide binding cleft is shallow and poorly conserved. We find a distal extended surface to be highly conserved, and when LIMK1 was ectopically expressed in yeast we find targeted mutagenesis of this surface decreases growth, implying increased LIMK activity. PDZ domain LIMK1 mutants expressed in yeast are hyperphosphorylated and show elevated activity in vitro. This surface in both LIMK1 and LIMK2 is critical for autoregulation independent of activation loop phosphorylation. Overall, our study demonstrates the functional importance of the PDZ domain to autoregulation of LIMKs.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF); National Institutes of Health (NIH); American Heart Association
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
2470229
Journal Information:
Nature Communications, Journal Name: Nature Communications Journal Issue: 1 Vol. 14; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

References (75)

PDZ Domains as Drug Targets journal April 2019
Ligand binding by PDZ domains journal June 2012
DALI and the persistence of protein shape journal November 2019
LIM kinases: function, regulation and association with human disease journal February 2007
The discs-large tumor suppressor gene of Drosophila encodes a guanylate kinase homolog localized at septate junctions journal August 1991
Isolation of a yeast essential gene, COF1, that encodes a homologue of mammalian cofilin, a low-Mr actin-binding and depolymerizing protein journal February 1993
The rat brain postsynaptic density fraction contains a homolog of the drosophila discs-large tumor suppressor protein journal November 1992
Self‐association of LIM‐kinase 1 mediated by the interaction between an N‐terminal LIM domain and a C‐terminal kinase domain journal December 1996
Crystal Structures of a Complexed and Peptide-Free Membrane Protein–Binding Domain: Molecular Basis of Peptide Recognition by PDZ journal June 1996
Origin of PDZ (DHR, GLGF) domains journal September 1995
Molecular Roots of Degenerate Specificity in Syntenin's PDZ2 Domain journal July 2003
Cdc42 Regulates the Par-6 PDZ Domain through an Allosteric CRIB-PDZ Transition journal March 2004
Origins of Allostery and Evolvability in Proteins: A Case Study journal July 2016
Elucidation of the binding preferences of peptide recognition modules: SH3 and PDZ domains journal June 2012
A Structural Portrait of the PDZ Domain Family journal October 2014
Structural Basis for Noncanonical Substrate Recognition of Cofilin/ADF Proteins by LIM Kinases journal May 2016
Regulation of ADF/cofilin phosphorylation and synaptic function by LIM-kinase journal October 2004
The Binding of the PDZ Tandem of Syntenin to Target Proteins , journal February 2006
PDZ Domains:  Folding and Binding journal July 2007
Regulation of actin dynamics through phosphorylation of cofilin by LIM-kinase journal June 1998
Cofilin phosphorylation by LIM-kinase 1 and its role in Rac-mediated actin reorganization journal June 1998
Crystal structure of a PDZ domain journal August 1996
Fast, scalable generation of high‐quality protein multiple sequence alignments using Clustal Omega journal January 2011
Rho GTPases in cell biology journal December 2002
β2-syntrophin and Par-3 promote an apicobasal Rac activity gradient at cell–cell junctions by differentially regulating Tiam1 activity journal October 2012
Cell adhesion: integrating cytoskeletal dynamics and cellular tension journal September 2010
Crystal structure of the hCASK PDZ domain reveals the structural basis of class II PDZ domain target recognition journal March 1998
Spinophilin directs protein phosphatase 1 specificity by blocking substrate binding sites journal March 2010
Internal recognition through PDZ domain plasticity in the Par-6–Pals1 complex
  • Penkert, Rhiannon R.; DiVittorio, Heather M.; Prehoda, Kenneth E.
  • Nature Structural & Molecular Biology, Vol. 11, Issue 11 https://doi.org/10.1038/nsmb839
journal October 2004
Author Correction: Quantitative fragmentomics allow affinity mapping of interactomes journal December 2022
Highly accurate protein structure prediction with AlphaFold journal July 2021
New structural insight of C-terminal region of Syntenin-1, enhancing the molecular dimerization and inhibitory function related on Syndecan-4 signaling journal November 2016
Lessons from LIMK1 enzymology and their impact on inhibitor design journal November 2019
PAK and other Rho-associated kinases – effectors with surprisingly diverse mechanisms of regulation journal February 2005
Structures and target recognition modes of PDZ domains: recurring themes and emerging pictures journal September 2013
Association of protein-tyrosine phosphatase PTP-BAS with the transcription-factor-inhibitory protein IκBα through interaction between the PDZ1 domain and ankyrin repeats journal January 1999
The N-terminal LIM domain negatively regulates the kinase activity ofLIM-kinase 1 journal September 1999
Phosphorylation of Ser‐3 of cofilin regulates its essential function on actin journal January 1996
The structure of the harmonin/sans complex reveals an unexpected interaction mode of the two Usher syndrome proteins journal February 2010
Large-scale interaction profiling of PDZ domains through proteomic peptide-phage display using human and viral phage peptidomes journal February 2014
Site-specific cation release drives actin filament severing by vertebrate cofilin journal December 2014
Structural Features of LIM Kinase That Control Effects on the Actin Cytoskeleton journal April 1999
Rho-associated Kinase ROCK Activates LIM-kinase 1 by Phosphorylation at Threonine 508 within the Activation Loop journal February 2000
Novel Mode of Ligand Recognition by the Erbin PDZ Domain journal November 2002
Cytoskeletal Changes Regulated by the PAK4 Serine/Threonine Kinase Are Mediated by LIM Kinase 1 and Cofilin journal August 2001
PDZ7 of Glutamate Receptor Interacting Protein Binds to Its Target via a Novel Hydrophobic Surface Area journal October 2002
Cofilin is an essential component of the yeast cortical cytoskeleton. journal January 1993
The 220-kD protein colocalizing with cadherins in non-epithelial cells is identical to ZO-1, a tight junction-associated protein in epithelial cells: cDNA cloning and immunoelectron microscopy. journal May 1993
Actinin-associated LIM Protein: Identification of a Domain Interaction between PDZ and Spectrin-like Repeat Motifs journal October 1997
Cofilin Phosphorylation and Actin Cytoskeletal Dynamics Regulated by Rho- and Cdc42-Activated Lim-Kinase 2 journal December 1999
The unfolded protein response coordinates the production of endoplasmic reticulum protein and endoplasmic reticulum membrane. journal September 1997
PDZ Motifs in PTP-BL and RIL Bind to Internal Protein Segments in the LIM Domain Protein RIL journal March 1998
PROMALS: towards accurate multiple sequence alignments of distantly related proteins journal January 2007
Jalview Version 2--a multiple sequence alignment editor and analysis workbench journal January 2009
Functional relevance of the disulfide-linked complex of the N-terminal PDZ domain of InaD with NorpA journal August 2001
Gapped BLAST and PSI-BLAST: a new generation of protein database search programs journal September 1997
Seeking allosteric networks in PDZ domains journal October 2018
Phaser crystallographic software journal July 2007
Scaling and assessment of data quality journal December 2005
Iterative model building, structure refinement and density modification with the PHENIX AutoBuild wizard journal December 2007
XDS journal January 2010
Features and development of Coot journal March 2010
Presenting your structures: the CCP 4 mg molecular-graphics software journal March 2011
CERES: a cryo-EM re-refinement system for continuous improvement of deposited models journal January 2021
Structure of PICK1 and other PDZ domains obtained with the help of self-binding C-terminal extensions journal April 2007
Actin, a Central Player in Cell Shape and Movement journal November 2009
Rho GTPases and the Actin Cytoskeleton journal January 1998
Unexpected Modes of PDZ Domain Scaffolding Revealed by Structure of nNOS-Syntrophin Complex journal April 1999
PDZ Domain Proteins: Plug and Play! journal April 2003
RHO GTPASES: Biochemistry and Biology journal November 2005
Actin Dynamics, Architecture, and Mechanics in Cell Motility journal January 2014
PDZ domains and their binding partners: structure, specificity, and modification journal May 2010
A Specificity Map for the PDZ Domain Family journal September 2008
LIM kinases: cofilin and beyond journal April 2017
Allosterism in the PDZ Family journal January 2022