4I3U

Structure of phosphonoacetaldehyde dehydrogenase in complex with phosphonoacetaldehyde


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.210 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structure and function of phosphonoacetaldehyde dehydrogenase: the missing link in phosphonoacetate formation.

Agarwal, V.Peck, S.C.Chen, J.H.Borisova, S.A.Chekan, J.R.van der Donk, W.A.Nair, S.K.

(2014) Chem.Biol. 21: 125-135

  • DOI: 10.1016/j.chembiol.2013.11.006
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Phosphonates (C-PO₃²⁻) have applications as antibiotics, herbicides, and detergents. In some environments, these molecules represent the predominant source of phosphorus, and several microbes have evolved dedicated enzymatic machineries for phosphona ...

    Phosphonates (C-PO₃²⁻) have applications as antibiotics, herbicides, and detergents. In some environments, these molecules represent the predominant source of phosphorus, and several microbes have evolved dedicated enzymatic machineries for phosphonate degradation. For example, most common naturally occurring phosphonates can be catabolized to either phosphonoacetaldehyde or phosphonoacetate, which can then be hydrolyzed to generate inorganic phosphate and acetaldehyde or acetate, respectively. The phosphonoacetaldehyde oxidase gene (phnY) links these two hydrolytic processes and provides a previously unknown catabolic mechanism for phosphonoacetate production in the microbial metabolome. Here, we present biochemical characterization of PhnY and high-resolution crystal structures of the apo state, as well as complexes with substrate, cofactor, and product. Kinetic analysis of active site mutants demonstrates how a highly conserved aldehyde dehydrogenase active site has been modified in nature to generate activity with a phosphonate substrate.


    Organizational Affiliation

    Center for Biophysics and Computational Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA; Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Aldehyde dehydrogenase (NAD+)
A, B, C, D, E, F, G, H
488Rhizobium meliloti (strain 1021)Mutation(s): 0 
Gene Names: phnY
EC: 1.2.1.-
Find proteins for Q92UV7 (Rhizobium meliloti (strain 1021))
Go to UniProtKB:  Q92UV7
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
POA
Query on POA

Download SDF File 
Download CCD File 
A, B, C, D, E, F, G, H
PHOSPHONOACETALDEHYDE
C2 H5 O4 P
YEMKIGUKNDOZEG-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.210 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 93.350α = 90.00
b = 172.880β = 106.73
c = 138.970γ = 90.00
Software Package:
Software NamePurpose
XSCALEdata scaling
REFMACrefinement
PDB_EXTRACTdata extraction
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-11-27
    Type: Initial release
  • Version 1.1: 2014-02-05
    Type: Database references