3QZ2 image
Deposition Date 2011-03-04
Release Date 2012-01-25
Last Version Date 2024-02-21
Entry Detail
PDB ID:
3QZ2
Keywords:
HYDROLASE
Title:
The structure of cysteine-free human insulin degrading enzyme
Biological Source:
Source Organism:
Homo sapiens (Taxon ID: 9606)
Host Organism:
Escherichia coli
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
3.20 Å
R-Value Free:
0.24
R-Value Work:
0.17
R-Value Observed:
0.17
Space Group:
P 65
3QZ2 validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Insulin-degrading enzyme
Gene (Uniprot):IDE
Chain IDs:A, B
Chain Length:990
Number of Molecules:2
Biological Source:Homo sapiens
UniProt ID:P14735 Pfam ID:PF00675, PF05193, PF16187 EC:3.4.24.56
Ligand Molecules
ZN
Primary Citation
Imidazole-derived 2-[N-carbamoylmethyl-alkylamino]acetic acids, substrate-dependent modulators of insulin-degrading enzyme in amyloid-beta hydrolysis.
Eur.J.Med.Chem. 79 184 193 (2014)
PMID: 24735644 DOI: 10.1016/j.ejmech.2014.04.009

Abstact

Insulin degrading enzyme (IDE) is a highly conserved zinc metalloprotease that is involved in the clearance of various physiologically peptides like amyloid-beta and insulin. This enzyme has been involved in the physiopathology of diabetes and Alzheimer's disease. We describe here a series of small molecules discovered by screening. Co-crystallization of the compounds with IDE revealed a binding both at the permanent exosite and at the discontinuous, conformational catalytic site. Preliminary structure-activity relationships are described. Selective inhibition of amyloid-beta degradation over insulin hydrolysis was possible. Neuroblastoma cells treated with the optimized compound display a dose-dependent increase in amyloid-beta levels.

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Primary Citation of related structures
3QZ2