2PNA

STRUCTURE OF AN SH2 DOMAIN OF THE P85 ALPHA SUBUNIT OF PHOSPHATIDYLINOSITOL-3-OH KINASE


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Submitted: 22 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Structure of an SH2 domain of the p85 alpha subunit of phosphatidylinositol-3-OH kinase.

Booker, G.W.Breeze, A.L.Downing, A.K.Panayotou, G.Gout, I.Waterfield, M.D.Campbell, I.D.

(1992) Nature 358: 684-687

  • DOI: https://doi.org/10.1038/358684a0
  • Primary Citation of Related Structures:  
    2PNA, 2PNB

  • PubMed Abstract: 

    Receptor protein-tyrosine kinases, through phosphorylation of specific tyrosine residues, generate high-affinity binding sites which direct assembly of multienzyme signalling complexes. Many of these signalling proteins, including phospholipase C gamma, GTPase-activating protein and phosphatidylinositol-3-OH kinase, contain src-homology 2 (SH2) domains, which bind with high affinity and specificity to tyrosine-phosphorylated sequences. The critical role played by SH2 domains in signalling has been highlighted by recent studies showing that mutation of specific phosphorylation sites on the platelet-derived growth factor receptor impair its association with phosphatidylinositol-3-OH kinase, preventing growth factor-induced mitogenesis. Here we report the solution structure of an isolated SH2 domain from the 85K regulatory subunit of phosphatidylinositol-3-OH kinase, determined using multidimensional nuclear magnetic resonance spectroscopy. The structure is characterized by a central region of beta-sheet flanked by two alpha-helices, with a highly flexible loop close to functionally important residues previously identified by site-directed mutagenesis.


  • Organizational Affiliation

    Department of Biochemistry, University of Oxford, UK.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
PHOSPHATIDYLINOSITOL 3-KINASE P85-ALPHA SUBUNIT N-TERMINAL SH2 DOMAIN104Bos taurusMutation(s): 0 
EC: 2.7.1.137
UniProt
Find proteins for P23727 (Bos taurus)
Explore P23727 
Go to UniProtKB:  P23727
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP23727
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Submitted: 22 

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1994-01-31
    Type: Initial release
  • Version 1.1: 2008-03-03
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-11-29
    Changes: Derived calculations, Other
  • Version 1.4: 2024-05-01
    Changes: Data collection, Database references