2K2R

The NMR structure of alpha-parvin CH2/paxillin LD1 complex


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

The Structure of {alpha}-Parvin CH2-Paxillin LD1 Complex Reveals a Novel Modular Recognition for Focal Adhesion Assembly.

Wang, X.Fukuda, K.Byeon, I.J.Velyvis, A.Wu, C.Gronenborn, A.Qin, J.

(2008) J Biol Chem 283: 21113-21119

  • DOI: 10.1074/jbc.M801270200
  • Primary Citation of Related Structures:  
    2K2R

  • PubMed Abstract: 
  • Alpha-parvin is an essential component of focal adhesions (FAs), which are large multiprotein complexes that link the plasma membrane and actin cytoskeleton. Alpha-parvin contains two calponin homology (CH) domains and its C-terminal CH2 domain binds multiple targets including paxillin LD motifs for regulating the FA network and signaling ...

    Alpha-parvin is an essential component of focal adhesions (FAs), which are large multiprotein complexes that link the plasma membrane and actin cytoskeleton. Alpha-parvin contains two calponin homology (CH) domains and its C-terminal CH2 domain binds multiple targets including paxillin LD motifs for regulating the FA network and signaling. Here we describe the solution structure of alpha-parvin CH2 bound to paxillin LD1. We show that although CH2 contains the canonical CH-fold, a previously defined N-terminal linker forms an alpha-helix that packs unexpectedly with the C-terminal helix of CH2, resulting in a novel variant of the CH domain. Importantly, such packing generates a hydrophobic surface that recognizes the Leu-rich face of paxillin-LD1, and the binding pattern differs drastically from the classical paxillin-LD binding to four-helix bundle proteins such as focal adhesion kinase. These results define a novel modular recognition mode and reveal how alpha-parvin associates with paxillin to mediate the FA assembly and signaling.


    Organizational Affiliation

    Structural Biology Program, 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
MoleculeChainsSequence LengthOrganismDetailsImage
Alpha-parvinA129Homo sapiensMutation(s): 0 
Gene Names: PARVAMXRA2
UniProt & NIH Common Fund Data Resources
Find proteins for Q9NVD7 (Homo sapiens)
Explore Q9NVD7 
Go to UniProtKB:  Q9NVD7
PHAROS:  Q9NVD7
GTEx:  ENSG00000197702 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9NVD7
Protein Feature View
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  • Reference Sequence

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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
PaxillinB10N/AMutation(s): 0 
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
Protein Feature View
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 
  • OLDERADO: 2K2R Olderado

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2008-05-27
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2022-03-16
    Changes: Data collection, Database references, Derived calculations