1GL5

NMR structure of the SH3 domain from the Tec protein tyrosine kinase


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: LOWEST ENERGY 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

The solution structure and intramolecular associations of the Tec kinase SRC homology 3 domain.

Pursglove, S.E.Mulhern, T.D.Mackay, J.P.Hinds, M.G.Booker, G.W.

(2002) J Biol Chem 277: 755-762

  • DOI: 10.1074/jbc.M108318200
  • Primary Citation of Related Structures:  
    1GL5

  • PubMed Abstract: 
  • Tec is the prototypic member of a family of intracellular tyrosine kinases that includes Txk, Bmx, Itk, and Btk. Tec family kinases share similarities in domain structure with Src family kinases, but one of the features that differentiates them is a ...

    Tec is the prototypic member of a family of intracellular tyrosine kinases that includes Txk, Bmx, Itk, and Btk. Tec family kinases share similarities in domain structure with Src family kinases, but one of the features that differentiates them is a proline-rich region (PRR) preceding their Src homology (SH) 3 domain. Evidence that the PRR of Itk can bind in an intramolecular fashion to its SH3 domain and the lack of a regulatory tyrosine in the C terminus indicates that Tec kinases must be regulated by a different set of intramolecular interactions to the Src kinases. We have determined the solution structure of the Tec SH3 domain and have investigated interactions with its PRR, which contains two SH3-binding sites. We demonstrate that in vitro, the Tec PRR can bind in an intramolecular fashion to the SH3. However, the affinity is lower than that for dimerization via reciprocal PRR-SH3 association. Using site-directed mutagenesis we show that both sites can bind the Tec SH3 domain; site 1 (155KTLPPAP161) binds intramolecularly, while site 2 (165KRRPPPPIPP174) cannot and binds in an intermolecular fashion. These distinct roles for the SH3 binding sites in Tec family kinases could be important for protein targeting and enzyme activation.


    Organizational Affiliation

    Department of Molecular Biosciences, University of Adelaide, Adelaide, 5005, Australia.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
TYROSINE-PROTEIN KINASE TECA67Mus musculusMutation(s): 0 
Gene Names: Tec
EC: 2.7.1.112 (PDB Primary Data), 2.7.10.2 (UniProt)
Find proteins for P24604 (Mus musculus)
Explore P24604 
Go to UniProtKB:  P24604
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: LOWEST ENERGY 
  • OLDERADO: 1GL5 Olderado

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-11-28
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2018-02-28
    Changes: Database references, Source and taxonomy