2HWP

Crystal structure of Src kinase domain in complex with covalent inhibitor PD168393

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.48 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.225 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history. 

Literature

Structure-guided development of affinity probes for tyrosine kinases using chemical genetics.

Blair, J.A., Rauh, D., Kung, C., Yun, C.H., Fan, Q.W., Rode, H., Zhang, C., Eck, M.J., Weiss, W.A., Shokat, K.M.

(2007) Nat.Chem.Biol. 3: 229-238

  • DOI: 10.1038/nchembio866
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    • As key components in nearly every signal transduction pathway, protein kinases are attractive targets for the regulation of cellular signaling by small-molecule inhibitors. We report the structure-guided development of 6-acrylamido-4-anilinoquinazoli ...

    As key components in nearly every signal transduction pathway, protein kinases are attractive targets for the regulation of cellular signaling by small-molecule inhibitors. We report the structure-guided development of 6-acrylamido-4-anilinoquinazoline irreversible kinase inhibitors that potently and selectively target rationally designed kinases bearing two selectivity elements that are not found together in any wild-type kinase: an electrophile-targeted cysteine residue and a glycine gatekeeper residue. Cocrystal structures of two irreversible quinazoline inhibitors bound to either epidermal growth factor receptor (EGFR) or engineered c-Src show covalent inhibitor binding to the targeted cysteine (Cys797 in EGFR and Cys345 in engineered c-Src). To accommodate the new covalent bond, the quinazoline core adopts positions that are different from those seen in kinase structures with reversible quinazoline inhibitors. Based on these structures, we developed a fluorescent 6-acrylamido-4-anilinoquinazoline affinity probe to report the fraction of kinase necessary for cellular signaling, and we used these reagents to quantitate the relationship between EGFR stimulation by EGF and its downstream outputs-Akt, Erk1 and Erk2.

    Organizational Affiliation: 

    Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Proto-oncogene tyrosine-protein kinase Src
A, B
286Gallus gallusMutation(s): 1 
Gene Names: SRC
EC: 2.7.10.2
Find proteins for P00523 (Gallus gallus)
Go to Gene View: SRC
Go to UniProtKB:  P00523
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
DJK
Query on DJK
Download SDF File 
Download CCD File 
A, B
N-[4-(3-BROMO-PHENYLAMINO)-QUINAZOLIN-6-YL]-ACRYLAMIDE
C17 H13 Br N4 O
HTUBKQUPEREOGA-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
DJKIC50: 340 - >27000 nM (100) BINDINGDB
DJKIC50: 73 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.48 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.225 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 42.063α = 100.74
b = 63.012β = 89.81
c = 73.692γ = 90.20
Software Package:
Software NamePurpose
DENZOdata reduction
PDB_EXTRACTdata extraction
AMoREphasing
SCALEPACKdata scaling
HKL-2000data reduction
HKL-2000data collection
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots


View more in-depth experimental data

Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-02-27
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-10-18
    Type: Refinement description