Structure of PDB 6itj Chain B Binding Site BS01

Receptor Information
>6itj Chain B (length=293) Species: 9606 (Homo sapiens) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
GVSEYELPEDPRWELPRDRLVLGKPLGEGAFGQVVLAEAIGLDKDKPNRV
TKVAVKMLKSDATEKDLSDLISEMEMMKMIGKHKNIINLLGACTQDGPLY
VIVEYASKGNLREYLQARRPPGLEYSYPEEQLSSKDLVSCAYQVARGMEY
LASKKCIHRDLAARNVLVTEDNVMKIADFGLAIDYYKKTTNGRLPVKWMA
PEALFDRIYTHQSDVWSFGVLLWEIFTLGGSPYPGVPVEELFKLLKEGHR
MDKPSNCTNELYMMMRDCWHAVPSQRPTFKQLVEDLDRIVALT
Ligand information
Ligand IDAXU
InChIInChI=1S/C21H17N5O2/c1-11-8-9-15-14(10-11)12(2)19(28-15)18-16-17(21(27)24-23-20(16)22)25-26(18)13-6-4-3-5-7-13/h3-10H,1-2H3,(H2,22,23)(H,24,27)
InChIKeyPTWNXRVSEAJTJH-UHFFFAOYSA-N
SMILES
SoftwareSMILES
CACTVS 3.385Cc1ccc2oc(c(C)c2c1)c3n(nc4C(=O)NN=C(N)c34)c5ccccc5
OpenEye OEToolkits 2.0.6Cc1ccc2c(c1)c(c(o2)c3c4c(nn3c5ccccc5)C(=O)NN=C4N)C
FormulaC21 H17 N5 O2
Name4-azanyl-3-(3,5-dimethyl-1-benzofuran-2-yl)-2-phenyl-6~{H}-pyrazolo[3,4-d]pyridazin-7-one
ChEMBLCHEMBL4586512
DrugBank
ZINC
PDB chain6itj Chain B Residue 801 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB6itj Discovery and Development of a Series of Pyrazolo[3,4-d]pyridazinone Compounds as the Novel Covalent Fibroblast Growth Factor Receptor Inhibitors by the Rational Drug Design.
Resolution1.994 Å
Binding residue
(original residue number in PDB)		F489 V492 A512 K514 V561 Y563 A564 L630
Binding residue
(residue number reindexed from 1)		F31 V34 A54 K56 V103 Y105 A106 L167
Annotation score1
Binding affinityMOAD: ic50=10.8nM
BindingDB: IC50=11nM
Enzymatic activity
Catalytic site (original residue number in PDB) D623 A625 R627 N628 D641
Catalytic site (residue number reindexed from 1) D160 A162 R164 N165 D178
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:0005007 fibroblast growth factor receptor activity
GO:0005524 ATP binding
Biological Process
GO:0006468 protein phosphorylation

View graph for
Molecular Function
View graph for
Biological Process
External links
PDB RCSB:6itj, PDBe:6itj, PDBj:6itj
PDBsum6itj
PubMed31335138
UniProtP11362|FGFR1_HUMAN Fibroblast growth factor receptor 1 (Gene Name=FGFR1)

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