4X0U

Structure ALDH7A1 inactivated by 4-diethylaminobenzaldehyde


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.190 

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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Diethylaminobenzaldehyde Is a Covalent, Irreversible Inactivator of ALDH7A1.

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

(2015) ACS Chem Biol 10: 693-697

  • DOI: 10.1021/cb500977q
  • Primary Citation of Related Structures:  
    4X0T, 4X0U

  • PubMed Abstract: 
  • 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) ...

    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.


    Organizational Affiliation

    ‡Department of Biochemistry, University of Missouri-Columbia, Columbia, Missouri 65211, United States.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Alpha-aminoadipic semialdehyde dehydrogenaseA, B, C, D513Homo sapiensMutation(s): 0 
Gene Names: ALDH7A1ATQ1
EC: 1.2.1.31 (PDB Primary Data), 1.2.1.3 (PDB Primary Data), 1.2.1.8 (PDB Primary Data)
UniProt & NIH Common Fund Data Resources
Find proteins for P49419 (Homo sapiens)
Explore P49419 
Go to UniProtKB:  P49419
PHAROS:  P49419
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP49419
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
3W9
Query on 3W9

Download Ideal Coordinates CCD File 
E [auth A],
F [auth B],
G [auth C],
H [auth D]
4-(diethylamino)benzaldehyde
C11 H15 N O
MNFZZNNFORDXSV-UHFFFAOYSA-N
 Ligand Interaction
MG
Query on MG

Download Ideal Coordinates CCD File 
I [auth D]MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.190 
  • Space Group: F 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 161.543α = 90
b = 219.407β = 90
c = 233.231γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
Aimlessdata scaling
PDB_EXTRACTdata extraction
XDSdata scaling
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-01-14
    Type: Initial release
  • Version 1.1: 2015-04-01
    Changes: Database references
  • Version 1.2: 2017-11-22
    Changes: Derived calculations, Refinement description, Source and taxonomy