1J19

Crystal structure of the radxin FERM domain complexed with the ICAM-2 cytoplasmic peptide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.228 
  • R-Value Observed: 0.228 

Starting Model: experimental
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This is version 1.3 of the entry. See complete history


Literature

Structural basis of adhesion-molecule recognition by ERM proteins revealed by the crystal structure of the radixin-ICAM-2 complex

Hamada, K.Shimizu, T.Yonemura, S.Tsukita, S.Tsukita, S.Hakoshima, T.

(2003) EMBO J 22: 502-514

  • DOI: https://doi.org/10.1093/emboj/cdg039
  • Primary Citation of Related Structures:  
    1J19

  • PubMed Abstract: 

    ERM (ezrin/radixin/moesin) proteins recognize the cytoplasmic domains of adhesion molecules in the formation of the membrane-associated cytoskeleton. Here we report the crystal structure of the radixin FERM (4.1 and ERM) domain complexed with the ICAM-2 cytoplasmic peptide. The non-polar region of the ICAM-2 peptide contains the RxxTYxVxxA sequence motif to form a beta-strand followed by a short 3(10)-helix. It binds the groove of the phosphotyrosine-binding (PTB)-like subdomain C mediated by a beta-beta association and several side-chain interactions. The binding mode of the ICAM-2 peptide to the FERM domain is distinct from that of the NPxY motif-containing peptide binding to the canonical PTB domain. Mutation analyses based on the crystal structure reveal the determinant elements of recognition and provide the first insights into the physical link between adhesion molecules and ERM proteins.


  • Organizational Affiliation

    Structural Biology Laboratory, Nara Institute of Science and Technology and CREST, Japan Science and Technology Corporation, 8916-5 Takayama, Ikoma, Nara 630-0101, Japan.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
radixin317Mus musculusMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P26043 (Mus musculus)
Explore P26043 
Go to UniProtKB:  P26043
IMPC:  MGI:97887
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP26043
Sequence Annotations
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  • Reference Sequence

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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
16-mer peptide from Intercellular adhesion molecule-216Mus musculusMutation(s): 0 
UniProt
Find proteins for P35330 (Mus musculus)
Explore P35330 
Go to UniProtKB:  P35330
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP35330
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.228 
  • R-Value Observed: 0.228 
  • Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 100.44α = 90
b = 100.44β = 90
c = 99.48γ = 120
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
CNSrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2003-03-11
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2023-10-25
    Changes: Data collection, Database references, Refinement description