ISDA: 4X0T

Deposition Date 2014-11-23

Release Date 2015-01-14

Last Version Date 2024-10-23

Entry Detail

PDB ID:

4X0T

Keywords:

oxidoreductase/oxidoreductase inhibitor

Title:

Structure ALDH7A1 inactivated by 4-diethylaminobenzaldehyde and complexed with NAD+

Biological Source:

Source Organism(s):

Homo sapiens (Taxon ID: 9606)

Expression System(s):

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.40 Å

R-Value Free:

0.23

R-Value Work:

0.18

R-Value Observed:

0.18

Space Group:

I 4 2 2

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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

NAD

Primary Citation

Diethylaminobenzaldehyde Is a Covalent, Irreversible Inactivator of ALDH7A1.

Luo, M, Gates, K.S, Henzl, M.T, Tanner, J.J.Show

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.

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Primary Citation of related structures

Abstact

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