PDB Entry (1eas)
PDB ID: 1eas Resolution: 1.8 Å Exp. Method: X-RAY DIFFRACTION
PMID: 7932559 DOI: 10.1021/jm00046a016
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:   3-[[(METHYLAMINO)SULFONYL]AMINO]-2-OXO-6-PHENYL-N-[3,3,3-TRIFLUORO-1-(1-METHYLETHYL)-2-OXOPHENYL]-1(2H)-PYRIDINE ACETAMIDE
Canonical SMILES:   FC(F)(F)C(=O)[C@H](C(C)C)NC(=O)Cn1c(-c2ccccc2)ccc(c1=O)NS(=O)(=O)NC
Standard InChI:   InChI=1S/C20H23F3N4O5S/c1-12(2)17(18(29)20(21,22)23)25-16(28)11-27-15(13-7-5-4-6-8-13)10-9-14(19(27)30)26-33(31,32)24-3/h4-10,12,17,24,26H,11H2,1-3H3,(H,25,28)/t17-/m0/s1
HET Code:   TFK PubChem:   5289460
DrugBank:   DB08614 ChEMBL:   CHEMBL1236262
Molecular Formula:   C20H23F3N4O5S Mol. Weight:   488.13412 logP:   1.6636
HBD:   3 HBA:   6
#Rotatable Bonds:   9 TPSA:   126.37
Covalent Mechanism
Reaction Name Residue Chain ID SASA pKa Warhead Name Warhead Structure
Hemi(thio)acetalization SER 195 A 20.33 - Ketone
Binding Affinity
Database Name Value
PDBBind Ki : 18 nM