PDB Entry (1u9x)
PDB ID: 1u9x Resolution: 2.1 Å Exp. Method: X-RAY DIFFRACTION
PMID: 15537340 DOI: 10.1021/jm0493111
Protein
Protein Name: Cathepsin K
Uniprot ID/ACC: P43235 (CATK_HUMAN) Organism: Homo sapiens (Human)
Gene Symbol: CTSK Gene ID: 1513
Protein Class: HYDROLASE
Ligand
Ligand Name:   NVP-ABJ688
Canonical SMILES:   CN1CCN(CCCOc2ccccc2Nc2nc(nc3n(cnc23)C2CCCC2)C#N)CC1
Standard InChI:   InChI=1S/C25H32N8O/c1-31-12-14-32(15-13-31)11-6-16-34-21-10-5-4-9-20(21)28-24-23-25(30-22(17-26)29-24)33(18-27-23)19-7-2-3-8-19/h4-5,9-10,18-19H,2-3,6-8,11-16H2,1H3,(H,28,29,30)
HET Code:   IHJ PubChem:   5288618
DrugBank:   - ChEMBL:   CHEMBL188139
Molecular Formula:   C25H32N8O Mol. Weight:   460.2699 logP:   3.57298
HBD:   1 HBA:   9
#Rotatable Bonds:   8 TPSA:   95.13
Covalent Mechanism
Reaction Name Residue Chain ID SASA pKa Warhead Name Warhead Structure
Nucleophilic Addition to a Triple Bond CYS 25 A 16.54 12.58 Nitrile
Binding Affinity
Database Name Value
PDBBind IC50 : 7 nM
BindingDB IC50 : 7 nM