1PRM

TWO BINDING ORIENTATIONS FOR PEPTIDES TO SRC SH3 DOMAIN: DEVELOPMENT OF A GENERAL MODEL FOR SH3-LIGAND INTERACTIONS


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Submitted: 

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This is version 1.3 of the entry. See complete history


Literature

Two binding orientations for peptides to the Src SH3 domain: development of a general model for SH3-ligand interactions.

Feng, S.Chen, J.K.Yu, H.Simon, J.A.Schreiber, S.L.

(1994) Science 266: 1241-1247

  • DOI: https://doi.org/10.1126/science.7526465
  • Primary Citation of Related Structures:  
    1PRL, 1PRM, 1RLP, 1RLQ

  • PubMed Abstract: 

    Solution structures of two Src homology 3 (SH3) domain-ligand complexes have been determined by nuclear magnetic resonance. Each complex consists of the SH3 domain and a nine-residue proline-rich peptide selected from a large library of ligands prepared by combinatorial synthesis. The bound ligands adopt a left-handed polyproline type II (PPII) helix, although the amino to carboxyl directionalities of their helices are opposite. The peptide orientation is determined by a salt bridge formed by the terminal arginine residues of the ligands and the conserved aspartate-99 of the SH3 domain. Residues at positions 3, 4, 6, and 7 of both peptides also intercalate into the ligand-binding site; however, the respective proline and nonproline residues show exchanged binding positions in the two complexes. These structural results led to a model for the interactions of SH3 domains with proline-rich peptides that can be used to predict critical residues in complexes of unknown structure. The model was used to identify correctly both the binding orientation and the contact and noncontact residues of a peptide derived from the nucleotide exchange factor Sos in association with the amino-terminal SH3 domain of the adaptor protein Grb2.


  • Organizational Affiliation

    Howard Hughes Medical Institute, Department of Chemistry, Harvard University, Cambridge, MA 02138.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
C-SRC TYROSINE KINASE SH3 DOMAINA [auth C]64Gallus gallusMutation(s): 0 
Gene Names: SYNTHETIC OLIGO
UniProt
Find proteins for P00523 (Gallus gallus)
Explore P00523 
Go to UniProtKB:  P00523
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP00523
Sequence Annotations
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  • Reference Sequence

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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
PROLINE-RICH LIGAND PLR1 (AFAPPLPRR)B [auth A]9N/AMutation(s): 0 
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Submitted: 

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1995-02-07
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2022-03-02
    Changes: Database references, Derived calculations, Other