PDB Entry (3kjf)
PDB ID: 3kjf Resolution: 2.0 Å Exp. Method: X-RAY DIFFRACTION
PMID: 20580860 DOI: 10.1016/j.bbapap.2010.05.007
Protein
Protein Name: Caspase-3
Uniprot ID/ACC: P42574 (CASP3_HUMAN) Organism: Homo sapiens (Human)
Gene Symbol: CASP3 Gene ID: 836
Protein Class: HYDROLASE
Ligand
Ligand Name:   (3S)-3-{[(5S,10aS)-2-[(2S)-4-carboxy-2-(2-phenylacetamido)butyl]-1,3-dioxo-1H,2H,3H,5H,7H,8H,9H,10H,10aH-[1,2,4]triazolo[1,2-a]cinnolin-5-yl]formamido}-5-(2,6-dichlorobenzoyloxy)-4-oxopentanoic acid
Canonical SMILES:   OC(=O)CC[C@@H](Cn1c(=O)n2[C@H]3CCCCC3=C[C@@H](C(=O)N[C@@H](CC(O)=O)C(=O)COC(=O)c3c(Cl)cccc3Cl)n2c1=O)NC(=O)Cc1ccccc1
Standard InChI:   InChI=1S/C36H37Cl2N5O11/c37-23-10-6-11-24(38)32(23)34(51)54-19-28(44)25(17-31(48)49)40-33(50)27-16-21-9-4-5-12-26(21)42-35(52)41(36(53)43(27)42)18-22(13-14-30(46)47)39-29(45)15-20-7-2-1-3-8-20/h1-3,6-8,10-11,16,22,25-27H,4-5,9,12-15,17-19H2,(H,39,45)(H,40,50)(H,46,47)(H,48,49)/t22-,25-,26-,27-/m0/s1
HET Code:   B92 PubChem:   -
DrugBank:   - ChEMBL:   -
Molecular Formula:   C36H37Cl2N5O11 Mol. Weight:   785.18665 logP:   2.6924
HBD:   4 HBA:   12
#Rotatable Bonds:   16 TPSA:   225.1
Covalent Mechanism
Reaction Name Residue Chain ID SASA pKa Warhead Name Warhead Structure
Nucleophilic Aliphatic Subsititution CYS 163 A 27.88 13.96 Acyloxymethyl Carbonyl
Binding Affinity
Database Name Value
PDBBind Ki : 13400 nM