PDB Entry (1u9q)
PDB ID: 1u9q Resolution: 2.3 Å Exp. Method: X-RAY DIFFRACTION
PMID: 15727867 DOI: 10.1016/j.bmc.2004.12.053
Protein
Protein Name: Cruzipain
Uniprot ID/ACC: P25779 (CYSP_TRYCR) Organism: Trypanosoma cruzi
Gene Symbol: - Gene ID: -
Protein Class: HYDROLASE
Ligand
Ligand Name:   methyl (3E,5S)-5-[(2R)-2-{[(benzyloxy)carbonyl]amino}-3-phenylpropanamido]-2-oxohex-3-enoate
Canonical SMILES:   COC(=O)C(=O)/C=C/[C@H](C)NC(=O)[C@@H](Cc1ccccc1)NC(=O)OCc2ccccc2
Standard InChI:   InChI=1S/C24H26N2O6/c1-17(13-14-21(27)23(29)31-2)25-22(28)20(15-18-9-5-3-6-10-18)26-24(30)32-16-19-11-7-4-8-12-19/h3-14,17,20H,15-16H2,1-2H3,(H,25,28)(H,26,30)/b14-13+/t17-,20+/m0/s1
HET Code:   186 PubChem:   -
DrugBank:   - ChEMBL:   -
Molecular Formula:   C24H26N2O6 Mol. Weight:   438.17908 logP:   2.3271
HBD:   2 HBA:   6
#Rotatable Bonds:   10 TPSA:   110.8
Covalent Mechanism
Reaction Name Residue Chain ID SASA pKa Warhead Name Warhead Structure
Michael Addition CYS 25 X 17.66 12.31 Vinyl Carbonyl
Binding Affinity
Database Name Value
PDBBind IC50 : 4.7 nM
Binding MOAD Ki : 1102.9 nM