Macromolecule Content

• Total Structure Weight: 12.11 kDa 
• Atom Count: 616 
• Residue Count: 78 
• Unique protein chains: 2

1JEG

Solution structure of the SH3 domain from C-terminal Src Kinase complexed with a peptide from the tyrosine phosphatase PEP

• DOI: 10.2210/pdb1JEG/pdb

• Classification: TRANSFERASE/HYDROLASE
• Organism(s): Mus musculus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2001-06-17 Released: 2001-10-31 
• Deposition Author(s): Ghose, R., Shekhtman, A., Goger, M.J., Ji, H., Cowburn, D.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 1000 
• Conformers Submitted: 25 
• Selection Criteria: structures with the lowest energy 

Literature

A novel, specific interaction involving the Csk SH3 domain and its natural ligand.

Ghose, R., Shekhtman, A., Goger, M.J., Ji, H., Cowburn, D.

(2001) Nat Struct Biol 8: 998-1004

• PubMed: 11685249 
• DOI: 10.1038/nsb1101-998
• Primary Citation of Related Structures:  
  1JEG


• PubMed Abstract: 
  

C-terminal Src kinase (Csk) takes part in a highly specific, high affinity interaction via its Src homology 3 (SH3) domain with the proline-enriched tyrosine phosphatase PEP in hematopoietic cells. The solution structure of the Csk-SH3 domain in complex with a 25-residue peptide from the Pro/Glu/Ser/Thr-rich (PEST) domain of PEP reveals the basis for this specific peptide recognition motif involving an SH3 domain. Three residues, Ala 40, Thr 42 and Lys 43, in the SH3 domain of Csk specifically recognize two hydrophobic residues, Ile 625 and Val 626, in the proline-rich sequence of the PEST domain of PEP. These two residues are C-terminal to the conventional proline-rich SH3 domain recognition sequence of PEP. This interaction is required in addition to the classic polyproline helix (PPII) recognition by the Csk-SH3 domain for the association between Csk and PEP in vivo. NMR relaxation analysis suggests that Csk-SH3 has different dynamic properties in the various subsites important for peptide recognition.

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Organizational Affiliation: 

The Rockefeller University, 1230 York Avenue, New York, New York 10021-6399, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
TYROSINE-PROTEIN KINASE CSK	A	83	Mus musculus	Mutation(s): 0  Gene Names: Csk EC: 2.7.1.112 (PDB Primary Data), 2.7.10.2 (UniProt)
Find proteins for P41241 (Mus musculus) Explore P41241  Go to UniProtKB:  P41241
NIH Common Fund Data Resources
IMPC  MGI:88537

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
HEMATOPOIETIC CELL PROTEIN-TYROSINE PHOSPHATASE 70Z-PEP	B	25	Mus musculus	Mutation(s): 0  Gene Names: Ptpn22, Ptpn8 EC: 3.1.3.48
Find proteins for P29352 (Mus musculus) Explore P29352  Go to UniProtKB:  P29352

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 1000 
• Conformers Submitted: 25 
• Selection Criteria: structures with the lowest energy 
• OLDERADO: 1JEG Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2001-06-17 
• Released Date: 2001-10-31 
Deposition Author(s): Ghose, R., Shekhtman, A., Goger, M.J., Ji, H., Cowburn, D.

Revision History 

• Version 1.0: 2001-10-31
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance