3Q9T

Crystal structure analysis of formate oxidase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.24 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.184 
  • R-Value Observed: 0.186 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.4 of the entry. See complete history


Literature

Formate oxidase, an enzyme of the glucose-methanol-choline oxidoreductase family, has a His-Arg pair and 8-formyl-FAD at the catalytic site.

Doubayashi, D.Ootake, T.Maeda, Y.Oki, M.Tokunaga, Y.Sakurai, A.Nagaosa, Y.Mikami, B.Uchida, H.

(2011) Biosci Biotechnol Biochem 75: 1662-1667

  • DOI: https://doi.org/10.1271/bbb.110153
  • Primary Citation of Related Structures:  
    3Q9T

  • PubMed Abstract: 

    Formate oxidase of Aspergillus oryzae RIB40 contains an 8-replaced FAD with molecular mass of 799 as cofactor. The ¹H-NMR spectrum of the cofactor fraction obtained from the enzyme indicated that the 8-replaced FAD in the fraction was 8-formyl-FAD, present in open form and hemiacetal form. The oxidation-reduction potentials of the open and hemiacetal forms were estimated by cyclic voltammetry to be -47 and -177 mV vs. Normal Hydrogen Electrode respectively. The structure of the enzyme was constructed using diffraction data to 2.24 Å resolution collected from a crystal of the enzyme. His₅₁₁ and Arg₅₅₄ were situated close to the pyrimidine part of the isoalloxazine ring of 8-formyl-FAD in open form. The enzyme had 8-formyl-FAD, the oxidation potential of which was approximately 160 mV more positive than that of FAD, and the His-Arg pair at the catalytic site, unlike the other enzymes belonging to the glucose-methanol-choline oxidoreductase family.


  • Organizational Affiliation

    Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, University of Fukui.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Choline dehydrogenase and related flavoproteins
A, B, C
577Aspergillus oryzae RIB40Mutation(s): 0 
Gene Names: AO090012000349
UniProt
Find proteins for Q2UD26 (Aspergillus oryzae (strain ATCC 42149 / RIB 40))
Explore Q2UD26 
Go to UniProtKB:  Q2UD26
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ2UD26
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 5 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
FAY
Query on FAY

Download Ideal Coordinates CCD File 
D [auth A],
H [auth B],
J [auth C]
[(2R,3S,4R,5R)-5-(6-amino-9H-purin-9-yl)-3,4-dihydroxytetrahydrofuran-2-yl]methyl (2R,3S,4S)-5-(8-formyl-7-methyl-2,4-dioxo-3,4-dihydrobenzo[g]pteridin-10(2H)-yl)-2,3,4-trihydroxypentyl dihydrogen diphosphate
C27 H31 N9 O16 P2
WPPWMPSQWPJDHE-UYBVJOGSSA-N
MPD
Query on MPD

Download Ideal Coordinates CCD File 
K [auth C](4S)-2-METHYL-2,4-PENTANEDIOL
C6 H14 O2
SVTBMSDMJJWYQN-YFKPBYRVSA-N
MRD
Query on MRD

Download Ideal Coordinates CCD File 
E [auth A],
F [auth A]
(4R)-2-METHYLPENTANE-2,4-DIOL
C6 H14 O2
SVTBMSDMJJWYQN-RXMQYKEDSA-N
PEG
Query on PEG

Download Ideal Coordinates CCD File 
I [auth B]DI(HYDROXYETHYL)ETHER
C4 H10 O3
MTHSVFCYNBDYFN-UHFFFAOYSA-N
ACT
Query on ACT

Download Ideal Coordinates CCD File 
G [auth A]ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.24 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.184 
  • R-Value Observed: 0.186 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 156.679α = 90
b = 156.019β = 90
c = 184.696γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
MOLREPphasing
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-09-21
    Type: Initial release
  • Version 1.1: 2013-06-26
    Changes: Database references
  • Version 1.2: 2017-11-08
    Changes: Advisory, Refinement description
  • Version 1.3: 2019-10-16
    Changes: Data collection, Database references
  • Version 1.4: 2023-11-01
    Changes: Advisory, Data collection, Database references, Derived calculations, Refinement description