6U4N

Solution structure of paxillin LIM4 in complex with kindlin-2 F0


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structural Basis of Paxillin Recruitment by Kindlin-2 in Regulating Cell Adhesion.

Zhu, L.Liu, H.Lu, F.Yang, J.Byzova, T.V.Qin, J.

(2019) Structure 27: 1686

  • DOI: https://doi.org/10.1016/j.str.2019.09.006
  • Primary Citation of Related Structures:  
    6U4M, 6U4N

  • PubMed Abstract: 

    Activation of cell surface receptor integrin has been extensively studied as the first key step to trigger cell adhesion, but the subsequent events, widely regarded as integrin "outside-in" signaling to form supramolecular complexes (focal adhesions [FAs]) to promote dynamic cell adhesion, remain poorly elucidated. Integrin activator kindlin-2 was recently found to associate with paxillin in nascent FAs, implicating an early yet undefined integrin outside-in signaling event. Here we show structurally that kindlin-2 recognizes paxillin via a distinct interface involving the ubiquitin-like kindlin-2 F0 domain and the paxillin LIM4 domain. The interface is adjacent to the membrane binding site of kindlin-2 F0, suggesting a mechanism for kindlin-2 to recruit paxillin to the membrane-proximal site where FA assembly is initiated. Disruption of the interface impaired the localization of paxillin, causing strong defects in FA assembly and cell migration. These data unveil a structural basis of the kindlin-2/paxillin interaction in controlling dynamic cell adhesion.


  • Organizational Affiliation

    Department of Cardiovascular & Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH 44195, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Fermitin family homolog 2112Homo sapiensMutation(s): 0 
Gene Names: FERMT2KIND2MIG2PLEKHC1
UniProt & NIH Common Fund Data Resources
Find proteins for Q96AC1 (Homo sapiens)
Explore Q96AC1 
Go to UniProtKB:  Q96AC1
PHAROS:  Q96AC1
GTEx:  ENSG00000073712 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ96AC1
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Paxillin72Homo sapiensMutation(s): 0 
Gene Names: PXN
UniProt & NIH Common Fund Data Resources
Find proteins for P49023 (Homo sapiens)
Explore P49023 
Go to UniProtKB:  P49023
PHAROS:  P49023
GTEx:  ENSG00000089159 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP49023
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI)United States--

Revision History  (Full details and data files)

  • Version 1.0: 2019-10-23
    Type: Initial release
  • Version 1.1: 2019-11-20
    Changes: Database references
  • Version 1.2: 2019-12-18
    Changes: Author supporting evidence
  • Version 1.3: 2024-05-01
    Changes: Data collection, Database references