Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

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Protein Workshop | Ligand Explorer

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 60397.39 
• Atom Count: 3641 
• Residue Count: 535 
• Unique protein chains: 1

2H8H

Src kinase in complex with a quinazoline inhibitor

• DOI: 10.2210/pdb2H8H/pdb

• Classification: TRANSFERASE
• Organism(s): Homo sapiens
• Expression System: Spodoptera frugiperda


• Deposited: 2006-06-07 Released: 2006-11-21 
• Deposition Author(s): Otterbein, L.R., Norman, R., Pauptit, R.A., Rowsell, S., Breed, J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.2 Å
• R-Value Free: 0.272 
• R-Value Work: 0.204 

Literature

N-(5-chloro-1,3-benzodioxol-4-yl)-7-[2-(4-methylpiperazin-1-yl)ethoxy]-5- (tetrahydro-2H-pyran-4-yloxy)quinazolin-4-amine, a novel, highly selective, orally available, dual-specific c-Src/Abl kinase inhibitor.

Hennequin, L.F., Allen, J., Breed, J., Curwen, J., Fennell, M., Green, T.P., Lambert-van der Brempt, C., Morgentin, R., Norman, R.A., Olivier, A., Otterbein, L., Ple, P.A., Warin, N., Costello, G.

(2006) J.Med.Chem. 49: 6465-6488

• PubMed: 17064066 
• DOI: 10.1021/jm060434q


• PubMed Abstract: 
  

Src family kinases (SFKs) are nonreceptor tyrosine kinases that are reported to be critical for cancer progression. We report here a novel subseries of C-5-substituted anilinoquinazolines that display high affinity and specificity for the tyrosine kinase domain of the c-Src and Abl enzymes. These compounds exhibit high selectivity for SFKs over a panel of recombinant protein kinases, excellent pharmacokinetics, and in vivo activity following oral dosing. N-(5-Chloro-1,3-benzodioxol-4-yl)-7-[2-(4-methylpiperazin-1-yl)ethoxy]-5-(tetrahydro-2H-pyran-4-yloxy)quinazolin-4-amine (AZD0530) inhibits c-Src and Abl enzymes at low nanomolar concentrations and is highly selective over a range of kinases. AZD0530 displays excellent pharmacokinetic parameters in animal preclinically and in man (t(1/2) = 40 h). AZD0530 is a potent inhibitor of tumor growth in a c-Src-transfected 3T3-fibroblast xenograft model in vivo and led to a significant increase in survival in a highly aggressive, orthotopic model of human pancreatic cancer when dosed orally once daily. AZD0530 is currently undergoing clinical evaluation in man.

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Organizational Affiliation: 

Centre de Recherches, AstraZeneca, ZISE La Pompelle, B.P. 1050, 51689 Reims Cedex 2, France. [e-mail]

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Proto-oncogene tyrosine-protein kinase Src	A	535	Homo sapiens	Mutation(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
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
H8H	A	N-(5-CHLORO-1,3-BENZODIOXOL-4-YL)-7-[2-(4-METHYLPIPERAZIN-1-YL)ETHOXY]-5-(TETRAHYDRO-2H-PYRAN-4-YLOXY)QUINAZOLIN-4-AMINE SARACATINIB C27 H32 Cl N5 O5 OUKYUETWWIPKQR-UHFFFAOYSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
PTR	A	L-PEPTIDE LINKING	C9 H12 N O6 P		TYR

External Ligand Annotations
ID	Binding Affinity (Sequence Identity %)
H8H	IC50: 1 - 10 nM (100) BINDINGDB
PTR	ΔG: -21.4 kJ/mol (92) BINDINGDB
H8H	IC50: 2.7 nM BINDINGMOAD
H8H	IC50: 2.7 nM PDBBIND

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.2 Å
• R-Value Free: 0.272 
• R-Value Work: 0.204 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length (Å)	Angle (°)
a = 49.806	α = 90.00
b = 72.467	β = 90.00
c = 171.566	γ = 90.00

Software Package:

Software Name	Purpose
REFMAC	refinement
ADSC	data collection
AMoRE	phasing
MOSFLM	data reduction

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2006-06-07 
• Released Date: 2006-11-21 
• Deposition Author(s): Otterbein, L.R., Norman, R., Pauptit, R.A., Rowsell, S., Breed, J.

Revision History 

• Version 1.0: 2006-11-21
  Type: Initial release
• Version 1.1: 2007-10-16
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Advisory, Derived calculations, Version format compliance
• Version 1.3: 2015-07-01
  Type: Non-polymer description