PDB Entry (2nqg)
PDB ID: 2nqg Resolution: 2.04 Å Exp. Method: X-RAY DIFFRACTION
PMID: 17218315 DOI: 10.1074/jbc.M610372200
Protein
Protein Name: Calpain-1 catalytic subunit
Uniprot ID/ACC: P97571 (CAN1_RAT) Organism: Rattus norvegicus (Rat)
Gene Symbol: Capn1 Gene ID: 29153
Protein Class: HYDROLASE
Ligand
Ligand Name:   WR18(S,S)
Canonical SMILES:   CCOC(=O)[C@@H]1O[C@@H]1C(=O)N[C@@H](CCC#N)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](Cc1c[nH]c2ccccc12)C(N)=O
Standard InChI:   InChI=1S/C28H37N9O7/c1-2-43-27(42)22-21(44-22)26(41)36-18(9-5-11-29)24(39)35-19(10-6-12-33-28(31)32)25(40)37-20(23(30)38)13-15-14-34-17-8-4-3-7-16(15)17/h3-4,7-8,14,18-22,34H,2,5-6,9-10,12-13H2,1H3,(H2,30,38)(H,35,39)(H,36,41)(H,37,40)(H4,31,32,33)/t18-,19-,20-,21-,22+/m0/s1
HET Code:   NQG PubChem:   -
DrugBank:   - ChEMBL:   -
Molecular Formula:   C28H37N9O7 Mol. Weight:   611.2816 logP:   -1.45235
HBD:   8 HBA:   9
#Rotatable Bonds:   17 TPSA:   270.7
Covalent Mechanism
Reaction Name Residue Chain ID SASA pKa Warhead Name Warhead Structure
Epoxide Opening CYS 115 A 19.53 13.84 Epoxide
Binding Affinity
Database Name Value
PDBBind IC50 : 333 nM