PDB Entry (2r9m)
PDB ID: 2r9m Resolution: 1.97 Å Exp. Method: X-RAY DIFFRACTION
PMID: - DOI: -
Protein
Protein Name: Cathepsin S
Uniprot ID/ACC: P25774 (CATS_HUMAN) Organism: Homo sapiens (Human)
Gene Symbol: CTSS Gene ID: 1520
Protein Class: HYDROLASE
Ligand
Ligand Name:   N-[(1S)-2-[(4-cyano-1-methylpiperidin-4-yl)amino]-1-(cyclohexylmethyl)-2-oxoethyl]morpholine-4-carboxamide
Canonical SMILES:   C1CN(C)CCC1(C#N)NC(=O)[C@H](CC2CCCCC2)NC(=O)N3CCOCC3
Standard InChI:   InChI=1S/C21H35N5O3/c1-25-9-7-21(16-22,8-10-25)24-19(27)18(15-17-5-3-2-4-6-17)23-20(28)26-11-13-29-14-12-26/h17-18H,2-15H2,1H3,(H,23,28)(H,24,27)/t18-/m0/s1
HET Code:   Y11 PubChem:   9887557
DrugBank:   DB08752 ChEMBL:   CHEMBL1236882
Molecular Formula:   C21H35N5O3 Mol. Weight:   405.274 logP:   1.47138
HBD:   2 HBA:   5
#Rotatable Bonds:   5 TPSA:   97.7
Covalent Mechanism
Reaction Name Residue Chain ID SASA pKa Warhead Name Warhead Structure
Nucleophilic Addition to a Triple Bond CYS 25 A 15.71 12.55 Nitrile
Binding Affinity
Database Name Value
PDBBind IC50 : 1.5 nM
BindingDB IC50 : 1.5 nM , IC50 : 0.9 nM