PDB Entry (4dmx)
PDB ID: 4dmx Resolution: 1.7 Å Exp. Method: X-RAY DIFFRACTION
PMID: 22742641 DOI: 10.1021/jm3007257
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:   (1R,2R)-N-(1-cyanocyclopropyl)-2-{[4-(4-fluorophenyl)piperazin-1-yl]carbonyl}cyclohexanecarboxamide
Canonical SMILES:   Fc1ccc(cc1)N2CCN(CC2)C(=O)[C@@H]3CCCC[C@H]3C(=O)NC4(C#N)CC4
Standard InChI:   InChI=1S/C22H27FN4O2/c23-16-5-7-17(8-6-16)26-11-13-27(14-12-26)21(29)19-4-2-1-3-18(19)20(28)25-22(15-24)9-10-22/h5-8,18-19H,1-4,9-14H2,(H,25,28)/t18-,19-/m1/s1
HET Code:   0LB PubChem:   70278898
DrugBank:   - ChEMBL:   CHEMBL2070936
Molecular Formula:   C22H27FN4O2 Mol. Weight:   398.2118 logP:   2.45308
HBD:   1 HBA:   4
#Rotatable Bonds:   4 TPSA:   76.44
Covalent Mechanism
Reaction Name Residue Chain ID SASA pKa Warhead Name Warhead Structure
Nucleophilic Addition to a Triple Bond CYS 25 A 16.24 12.93 Nitrile
Binding Affinity
Database Name Value
BindingDB IC50 : 15 nM , IC50 : 15.8 nM , IC50 : 15.85 nM