PDB Entry (5mae)
PDB ID: 5mae Resolution: 1.0 Å Exp. Method: X-RAY DIFFRACTION
PMID: 27992115 DOI: 10.1002/cmdc.201600563
Protein
Protein Name: Procathepsin L
Uniprot ID/ACC: P07711 (CATL1_HUMAN) Organism: Homo sapiens (Human)
Gene Symbol: CTSL Gene ID: 1514
Protein Class: HYDROLASE
Ligand
Ligand Name:   4-{cyclopentyl[(pyrazin-2-yl)methyl]amino}-6-(morpholin-4-yl)-1,3,5-triazine-2-carbonitrile
Canonical SMILES:   c1nccnc1CN(C2CCCC2)c3nc(C#N)nc(n3)N4CCOCC4
Standard InChI:   InChI=1S/C18H22N8O/c19-11-16-22-17(25-7-9-27-10-8-25)24-18(23-16)26(15-3-1-2-4-15)13-14-12-20-5-6-21-14/h5-6,12,15H,1-4,7-10,13H2
HET Code:   7KN PubChem:   155521458
DrugBank:   - ChEMBL:   CHEMBL4450100
Molecular Formula:   C18H22N8O Mol. Weight:   366.19165 logP:   1.31908
HBD:   0 HBA:   9
#Rotatable Bonds:   5 TPSA:   103.95
Covalent Mechanism
Reaction Name Residue Chain ID SASA pKa Warhead Name Warhead Structure
Nucleophilic Addition to a Triple Bond CYS 25 A 17.36 12.38 Nitrile
Binding Affinity
Database Name Value
PDBBind Ki : 146 nM