2RSY

Solution structure of the SH2 domain of Csk in complex with a phosphopeptide from Cbp


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: target function 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Identification of a new interaction mode between the Src homology 2 domain of C-terminal Src kinase (Csk) and Csk-binding protein/phosphoprotein associated with glycosphingolipid microdomains.

Tanaka, H.Akagi, K.Oneyama, C.Tanaka, M.Sasaki, Y.Kanou, T.Lee, Y.H.Yokogawa, D.Dobenecker, M.W.Nakagawa, A.Okada, M.Ikegami, T.

(2013) J Biol Chem 288: 15240-15254

  • DOI: 10.1074/jbc.M112.439075
  • Primary Citation of Related Structures:  
    2RSY

  • PubMed Abstract: 
  • Proteins with Src homology 2 (SH2) domains play major roles in tyrosine kinase signaling. Structures of many SH2 domains have been studied, and the regions involved in their interactions with ligands have been elucidated. However, these analyses have been performed using short peptides consisting of phosphotyrosine followed by a few amino acids, which are described as the canonical recognition sites ...

    Proteins with Src homology 2 (SH2) domains play major roles in tyrosine kinase signaling. Structures of many SH2 domains have been studied, and the regions involved in their interactions with ligands have been elucidated. However, these analyses have been performed using short peptides consisting of phosphotyrosine followed by a few amino acids, which are described as the canonical recognition sites. Here, we report the solution structure of the SH2 domain of C-terminal Src kinase (Csk) in complex with a longer phosphopeptide from the Csk-binding protein (Cbp). This structure, together with biochemical experiments, revealed the existence of a novel binding region in addition to the canonical phosphotyrosine 314-binding site of Cbp. Mutational analysis of this second region in cells showed that both canonical and novel binding sites are required for tumor suppression through the Cbp-Csk interaction. Furthermore, the data indicate an allosteric connection between Cbp binding and Csk activation that arises from residues in the βB/βC loop of the SH2 domain.


    Organizational Affiliation

    Institute for Protein Research, Osaka University, 3-2 Yamada-oka, Suita, Osaka 565-0871, Japan.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Tyrosine-protein kinase CSKA99Rattus norvegicusMutation(s): 0 
Gene Names: Csk
EC: 2.7.10.2
UniProt
Find proteins for P32577 (Rattus norvegicus)
Explore P32577 
Go to UniProtKB:  P32577
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Phosphoprotein associated with glycosphingolipid-enriched microdomains 1B38Rattus norvegicusMutation(s): 0 
Gene Names: Pag1CbpPag
UniProt
Find proteins for Q9JM80 (Rattus norvegicus)
Explore Q9JM80 
Go to UniProtKB:  Q9JM80
Protein Feature View
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  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
PTR
Query on PTR
BL-PEPTIDE LINKINGC9 H12 N O6 PTYR
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: target function 
  • OLDERADO: 2RSY Olderado

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-04-10
    Type: Initial release
  • Version 1.1: 2019-12-25
    Changes: Data collection, Database references, Derived calculations