PDB Entry (4nnn)
PDB ID: 4nnn Resolution: 2.5 Å Exp. Method: X-RAY DIFFRACTION
PMID: 24403024 DOI: 10.1002/anie.201308984
Protein
Protein Name: Proteasome subunit beta type-1
Uniprot ID/ACC: P38624 (PSB1_YEAST) Organism: Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast)
Gene Symbol: PRE3 Gene ID: 853456
Protein Class: HYDROLASE
Ligand
Ligand Name:   MG132
Canonical SMILES:   CC(C)C[C@@H](C=O)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CC(C)C)NC(=O)OCc1ccccc1
Standard InChI:   InChI=1S/C26H41N3O5/c1-17(2)12-21(15-30)27-24(31)22(13-18(3)4)28-25(32)23(14-19(5)6)29-26(33)34-16-20-10-8-7-9-11-20/h7-11,15,17-19,21-23H,12-14,16H2,1-6H3,(H,27,31)(H,28,32)(H,29,33)/t21-,22-,23-/m0/s1
HET Code:   ALD PubChem:   462382
DrugBank:   - ChEMBL:   CHEMBL64925
Molecular Formula:   C26H41N3O5 Mol. Weight:   475.30463 logP:   3.5882
HBD:   3 HBA:   5
#Rotatable Bonds:   14 TPSA:   113.6
Covalent Mechanism
Reaction Name Residue Chain ID SASA pKa Warhead Name Warhead Structure
Hemi(thio)acetalization THR 1 N 27.08 - Aldehyde
Binding Affinity
Database Name Value
PDBBind IC50 : 270 nM