Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 25 
  • Selection Criteria: LEAST RESTRAINT VIOLATION 

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This is version 1.3 of the entry. See complete history


Solution structure of the human Hck SH3 domain and identification of its ligand binding site.

Horita, D.A.Baldisseri, D.M.Zhang, W.Altieri, A.S.Smithgall, T.E.Gmeiner, W.H.Byrd, R.A.

(1998) J Mol Biol 278: 253-265

  • DOI: https://doi.org/10.1006/jmbi.1998.1690
  • Primary Citation of Related Structures:  
    4HCK, 5HCK

  • PubMed Abstract: 

    SH3 domains are protein binding domains that occur widely among signal transduction proteins. Here, we present the NMR-determined solution structure of the SH3 domain from the cytoplasmic protein tyrosine kinase, Hck. Hck is involved in a number of cell signal transduction pathways, frequently in pathways associated with immune response. SH3 domains bind proteins via a left-handed polyproline type II helix on the target protein. We have assessed the structural impact of binding to a ligand through addition of a peptide corresponding to a proline-rich region of a Hck target, the GTPase activating protein of the Ras pathway. Ligand binding effects small structural changes and stabilizes the SH3 domain structure. Also, we have compared the solution structure of the Hck SH3 domain to the crystal structure of Hck, in which the SH3 domain exhibits an intramolecular binding to an interdomain linker region. These structures are interpreted as the apo- and holo- forms of the Hck SH3 domain.

  • Organizational Affiliation

    ABL-Basic Research Program, NCI-Frederick Cancer Research and Development Center, Frederick, MD, 21702-1201, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
HEMATOPOIETIC CELL KINASE72Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P08631 (Homo sapiens)
Explore P08631 
Go to UniProtKB:  P08631
PHAROS:  P08631
GTEx:  ENSG00000101336 
Entity Groups  
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UniProt GroupP08631
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 25 
  • Selection Criteria: LEAST RESTRAINT VIOLATION 

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1998-06-17
    Type: Initial release
  • Version 1.1: 2008-03-25
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2024-05-01
    Changes: Data collection, Database references, Other