PDB Entry (2xu1)
PDB ID: 2xu1 Resolution: 1.45 Å Exp. Method: X-RAY DIFFRACTION
PMID: 21184410 DOI: 10.1002/ANIE.201006781
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:   (2S,4R)-4-(2-chlorobenzenesulfonyl)-1-[1-(4-chlorophenyl)cyclopropanecarbonyl]-N-(1-cyanocyclopropyl)pyrrolidine-2-carboxamide
Canonical SMILES:   Clc1ccc(cc1)C2(CC2)C(=O)N3C[C@@H](C[C@H]3C(=O)NC4(C#N)CC4)S(=O)(=O)c5ccccc5Cl
Standard InChI:   InChI=1S/C25H23Cl2N3O4S/c26-17-7-5-16(6-8-17)25(11-12-25)23(32)30-14-18(35(33,34)21-4-2-1-3-19(21)27)13-20(30)22(31)29-24(15-28)9-10-24/h1-8,18,20H,9-14H2,(H,29,31)/t18-,20+/m1/s1
HET Code:   424 PubChem:   46945615
DrugBank:   - ChEMBL:   CHEMBL2335179
Molecular Formula:   C25H23Cl2N3O4S Mol. Weight:   531.0786 logP:   3.64078
HBD:   1 HBA:   5
#Rotatable Bonds:   6 TPSA:   107.34
Covalent Mechanism
Reaction Name Residue Chain ID SASA pKa Warhead Name Warhead Structure
Nucleophilic Addition to a Triple Bond CYS 25 A 19.08 11.76 Nitrile
Binding Affinity
Database Name Value
PDBBind IC50 : 22 nM