PDB Entry (1e37)
PDB ID: 1e37 Resolution: 1.75 Å Exp. Method: X-RAY DIFFRACTION
PMID: 11023818 DOI: 10.1042/0264-6021:3510335
Protein
Protein Name: Chymotrypsin-like elastase family member 1
Uniprot ID/ACC: P00772 (CELA1_PIG) Organism: Sus scrofa (Pig)
Gene Symbol: CELA1 Gene ID: 396766
Protein Class: HYDROLASE
Ligand
Ligand Name:   (3S,4S)‐4‐ethyl‐1‐(4‐nitrobenzenesulfonyl)‐5‐oxopyrrolidine‐3‐carboxylic acid
Canonical SMILES:   CC[C@H]1[C@@H](CN(C1=O)S(=O)(=O)c1ccc(cc1)[N+]([O-])=O)C(O)=O
Standard InChI:   InChI=1S/C13H14N2O7S/c1-2-10-11(13(17)18)7-14(12(10)16)23(21,22)9-5-3-8(4-6-9)15(19)20/h3-6,10-11H,2,7H2,1H3,(H,17,18)/t10-,11+/m0/s1
HET Code:   TPY PubChem:   -
DrugBank:   - ChEMBL:   -
Molecular Formula:   C13H14N2O7S Mol. Weight:   342.0522 logP:   0.8527
HBD:   1 HBA:   6
#Rotatable Bonds:   5 TPSA:   134.89
Covalent Mechanism
Reaction Name Residue Chain ID SASA pKa Warhead Name Warhead Structure
Ring Opening SER 195 B 26.52 - Gamma-Lactam
Binding Affinity
Database Name Value
PDBBind Ki : 200000 nM