4X0U image
Deposition Date 2014-11-23
Release Date 2015-01-14
Last Version Date 2024-10-16
Entry Detail
PDB ID:
4X0U
Keywords:
oxidoreductase/oxidoreductase inhibitor
Title:
Structure ALDH7A1 inactivated by 4-diethylaminobenzaldehyde
Biological Source:
Source Organism:
Homo sapiens (Taxon ID: 9606)
Host Organism:
Escherichia coli
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
1.95 Å
R-Value Free:
0.22
R-Value Work:
0.18
R-Value Observed:
0.19
Space Group:
F 2 2 2
4X0U validation report
Macromolecular Entities
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Alpha-aminoadipic semialdehyde dehydrogenase
Gene (Uniprot):ALDH7A1
Chain IDs:A, B, C, D
Chain Length:513
Number of Molecules:4
Biological Source:Homo sapiens
UniProt ID:P49419 Pfam ID:PF00171 EC:1.2.1.3
Ligand Molecules
3W9
MG
Primary Citation
Diethylaminobenzaldehyde Is a Covalent, Irreversible Inactivator of ALDH7A1.
Acs Chem.Biol. 10 693 697 (2015)
PMID: 25554827 DOI: 10.1021/cb500977q

Abstact

There is growing interest in aldehyde dehydrogenases (ALDHs) because of their overexpression in cancer stem cells and the ability to mediate resistance to cancer drugs. Here, we report the first crystal structure of an aldehyde dehydrogenase complexed with the inhibitor 4-diethylaminobenzaldehyde (DEAB). Contrary to the widely held belief that DEAB is a reversible inhibitor of ALDHs, we show that DEAB irreversibly inactivates ALDH7A1 via formation of a stable, covalent acyl-enzyme species.

Legend

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Chemical

Disease

Primary Citation of related structures
4X0T