PDB Entry (4bs5)
PDB ID: 4bs5 Resolution: 1.25 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:   (2S,4R)-N-(1-cyanocyclopropyl)-4-[2-(trifluoromethyl)benzenesulfonyl]pyrrolidine-2-carboxamide
Canonical SMILES:   FC(F)(F)c1ccccc1S(=O)(=O)[C@H]1CN[C@@H](C1)C(=O)NC1(CC1)C#N
Standard InChI:   InChI=1S/C16H16F3N3O3S/c17-16(18,19)11-3-1-2-4-13(11)26(24,25)10-7-12(21-8-10)14(23)22-15(9-20)5-6-15/h1-4,10,12,21H,5-8H2,(H,22,23)/t10-,12+/m1/s1
HET Code:   MG2 PubChem:   46946224
DrugBank:   - ChEMBL:   CHEMBL3093932
Molecular Formula:   C16H16F3N3O3S Mol. Weight:   387.08646 logP:   1.38198
HBD:   2 HBA:   5
#Rotatable Bonds:   4 TPSA:   99.06
Covalent Mechanism
Reaction Name Residue Chain ID SASA pKa Warhead Name Warhead Structure
Nucleophilic Addition to a Triple Bond CYS 147 A 15.32 12.23 Nitrile
Binding Affinity
Database Name Value
PDBBind IC50 : 6 nM