PDB Entry (1vsn)
PDB ID: 1vsn Resolution: 2.0 Å Exp. Method: X-RAY DIFFRACTION
PMID: 16413777 DOI: 10.1016/j.bmcl.2005.12.071
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:   L-873724
Canonical SMILES:   N#CCNC(=O)[C@H](CC(C)C)N[C@H](C(F)(F)F)c1ccc(cc1)-c2ccc(cc2)S(=O)(=O)N
Standard InChI:   InChI=1S/C22H25F3N4O3S/c1-14(2)13-19(21(30)28-12-11-26)29-20(22(23,24)25)17-5-3-15(4-6-17)16-7-9-18(10-8-16)33(27,31)32/h3-10,14,19-20,29H,12-13H2,1-2H3,(H,28,30)(H2,27,31,32)/t19-,20-/m0/s1
HET Code:   NFT PubChem:   10238903
DrugBank:   - ChEMBL:   CHEMBL207554
Molecular Formula:   C22H25F3N4O3S Mol. Weight:   482.15994 logP:   3.24848
HBD:   3 HBA:   5
#Rotatable Bonds:   9 TPSA:   125.08
Covalent Mechanism
Reaction Name Residue Chain ID SASA pKa Warhead Name Warhead Structure
Nucleophilic Addition to a Triple Bond CYS 25 A 16.46 12.2 Nitrile
Binding Affinity
Database Name Value
PDBBind IC50 : 0.2 nM