Structure of PDB 2itz Chain A Binding Site BS01

Receptor Information
>2itz Chain A (length=302) Species: 9606 (Homo sapiens) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
EAPNQALLRILKETEFKKIKVLGSGAFGTVYKGLWIPEGEKVKIPVAIKE
LREATSPKANKEILDEAYVMASVDNPHVCRLLGICLTSTVQLITQLMPFG
CLLDYVREHKDNIGSQYLLNWCVQIAKGMNYLEDRRLVHRDLAARNVLVK
TPQHVKITDFGRAKLLGAEVPIKWMALESILHRIYTHQSDVWSYGVTVWE
LMTFGSKPYDGIPASEISSILEKGERLPQPPICTIDVYMIMVKCWMIDAD
SRPKFRELIIEFSKMARDPQRYLVIQGDERMHLPMDEEDMDDVVDADEYL
IP
Ligand information
Ligand IDIRE
InChIInChI=1S/C22H24ClFN4O3/c1-29-20-13-19-16(12-21(20)31-8-2-5-28-6-9-30-10-7-28)22(26-14-25-19)27-15-3-4-18(24)17(23)11-15/h3-4,11-14H,2,5-10H2,1H3,(H,25,26,27)
InChIKeyXGALLCVXEZPNRQ-UHFFFAOYSA-N
SMILES
SoftwareSMILES
OpenEye OEToolkits 2.0.7COc1cc2c(cc1OCCCN3CCOCC3)c(ncn2)Nc4ccc(c(c4)Cl)F
ACDLabs 12.01Fc1ccc(cc1Cl)Nc1ncnc2cc(OC)c(cc12)OCCCN1CCOCC1
CACTVS 3.385COc1cc2ncnc(Nc3ccc(F)c(Cl)c3)c2cc1OCCCN4CCOCC4
FormulaC22 H24 Cl F N4 O3
NameGefitinib
ChEMBLCHEMBL939
DrugBankDB00317
ZINCZINC000019632614
PDB chain2itz Chain A Residue 2021 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB2itz Structures of Lung Cancer-Derived Egfr Mutants and Inhibitor Complexes: Mechanism of Activation and Insights Into Differential Inhibitor Sensitivity
Resolution2.8 Å
Binding residue
(original residue number in PDB)		A743 K745 L788 T790 L792 M793 D800 L844 D855
Binding residue
(residue number reindexed from 1)		A47 K49 L92 T94 L96 M97 D104 L148 D159
Annotation score1
Binding affinityPDBbind-CN: -logKd/Ki=8.59,Kd=2.6nM
Enzymatic activity
Catalytic site (original residue number in PDB) D837 A839 R841 N842 D855
Catalytic site (residue number reindexed from 1) D141 A143 R145 N146 D159
Enzyme Commision number 2.7.10.1: receptor protein-tyrosine kinase.
Gene Ontology
Molecular Function
GO:0004672 protein kinase activity
GO:0004713 protein tyrosine kinase activity
GO:0005524 ATP binding
Biological Process
GO:0006468 protein phosphorylation

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Molecular Function
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Biological Process
External links
PDB RCSB:2itz, PDBe:2itz, PDBj:2itz
PDBsum2itz
PubMed17349580
UniProtP00533|EGFR_HUMAN Epidermal growth factor receptor (Gene Name=EGFR)

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