PDB Entry (4bsq)
PDB ID: 4bsq Resolution: 1.96 Å Exp. Method: X-RAY DIFFRACTION
PMID: 24224654 DOI: 10.1021/JM401528K
Protein
Protein Name: Cathepsin S
Uniprot ID/ACC: O70370 (CATS_MOUSE) Organism: Mus musculus (Mouse)
Gene Symbol: Ctss Gene ID: 13040
Protein Class: HYDROLASE
Ligand
Ligand Name:   (1R,2R,4R)-4-Benzenesulfonyl-2-(morpholine-4-carbonyl)-cyclopentanecarboxylic Acid Cyanomethyl-amide
Canonical SMILES:   N#CCNC(=O)[C@@H]1C[C@@H](S(=O)(=O)c2ccccc2)C[C@H]1C(=O)N3CCOCC3
Standard InChI:   InChI=1S/C19H23N3O5S/c20-6-7-21-18(23)16-12-15(28(25,26)14-4-2-1-3-5-14)13-17(16)19(24)22-8-10-27-11-9-22/h1-5,15-17H,7-13H2,(H,21,23)/t15-,16-,17-/m1/s1
HET Code:   QQV PubChem:   49835673
DrugBank:   - ChEMBL:   CHEMBL3093940
Molecular Formula:   C19H23N3O5S Mol. Weight:   405.13583 logP:   0.35368
HBD:   1 HBA:   6
#Rotatable Bonds:   5 TPSA:   116.57
Covalent Mechanism
Reaction Name Residue Chain ID SASA pKa Warhead Name Warhead Structure
Nucleophilic Addition to a Triple Bond CYS 147 A 12.19 12.37 Nitrile
Binding Affinity
Database Name Value
PDBBind IC50 : 0.7 nM