2SRC

CRYSTAL STRUCTURE OF HUMAN TYROSINE-PROTEIN KINASE C-SRC, IN COMPLEX WITH AMP-PNP


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Free: 0.281 
  • R-Value Work: 0.226 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structures of c-Src reveal features of its autoinhibitory mechanism.

Xu, W.Doshi, A.Lei, M.Eck, M.J.Harrison, S.C.

(1999) Mol.Cell 3: 629-638


  • PubMed Abstract: 
  • Src family kinases are maintained in an assembled, inactive conformation by intramolecular interactions of their SH2 and SH3 domains. Full catalytic activity requires release of these restraints as well as phosphorylation of Tyr-416 in the activation ...

    Src family kinases are maintained in an assembled, inactive conformation by intramolecular interactions of their SH2 and SH3 domains. Full catalytic activity requires release of these restraints as well as phosphorylation of Tyr-416 in the activation loop. In previous structures of inactive Src kinases, Tyr-416 and flanking residues are disordered. We report here four additional c-Src structures in which this segment adopts an ordered but inhibitory conformation. The ordered activation loop forms an alpha helix that stabilizes the inactive conformation of the kinase domain, blocks the peptide substrate-binding site, and prevents Tyr-416 phosphorylation. Disassembly of the regulatory domains, induced by SH2 or SH3 ligands, or by dephosphorylation of Tyr-527, could lead to exposure and phosphorylation of Tyr-416.


    Organizational Affiliation

    Laboratory of Molecular Medicine, Children's Hospital, Boston, Massachusetts 02115, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
TYROSINE-PROTEIN KINASE SRC
A
452Homo sapiensMutation(s): 0 
Gene Names: SRC (SRC1)
EC: 2.7.10.2
Find proteins for P12931 (Homo sapiens)
Go to Gene View: SRC
Go to UniProtKB:  P12931
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ANP
Query on ANP

Download SDF File 
Download CCD File 
A
PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER
C10 H17 N6 O12 P3
PVKSNHVPLWYQGJ-KQYNXXCUSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
PTR
Query on PTR
A
L-PEPTIDE LINKINGC9 H12 N O6 PTYR
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
PTRΔG: -21.4 kJ/mol (97) BINDINGDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Free: 0.281 
  • R-Value Work: 0.226 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 50.590α = 90.00
b = 72.970β = 90.00
c = 172.690γ = 90.00
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-07-22
    Type: Initial release
  • Version 1.1: 2008-03-25
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance