PDB Entry (1ayv)
PDB ID: 1ayv Resolution: 2.3 Å Exp. Method: X-RAY DIFFRACTION
PMID: 9405598 DOI: 10.1073/pnas.94.26.14249
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:   N-[2-[1-(N-BENZYLOXYCARBONYLAMINO)-3-METHYLBUTYL]THIAZOL-4-YLCARBONYL]-N'-(BENZYLOXYCARBONYL-L-LEUCINYL)HYDRAZIDE
Canonical SMILES:   c1ccccc1COC(=O)N[C@@H](CC(C)C)c2nc(cs2)C(=O)NNC(=O)[C@H](CC(C)C)NC(=O)OCc3ccccc3
Standard InChI:   InChI=1S/C31H39N5O6S/c1-20(2)15-24(33-30(39)41-17-22-11-7-5-8-12-22)27(37)35-36-28(38)26-19-43-29(32-26)25(16-21(3)4)34-31(40)42-18-23-13-9-6-10-14-23/h5-14,19-21,24-25H,15-18H2,1-4H3,(H,33,39)(H,34,40)(H,35,37)(H,36,38)/t24-,25-/m0/s1
HET Code:   IN6 PubChem:   5288633
DrugBank:   - ChEMBL:   CHEMBL57836
Molecular Formula:   C31H39N5O6S Mol. Weight:   609.2621 logP:   5.2588
HBD:   4 HBA:   8
#Rotatable Bonds:   13 TPSA:   147.75
Covalent Mechanism
Reaction Name Residue Chain ID SASA pKa Warhead Name Warhead Structure
Nucleophilic Addition to a Double Bond CYS 25 A 17.21 12.44 Hydrazide
Binding Affinity
Database Name Value
PDBBind Ki : 10 nM