4D04

Structure of the Cys65Asp mutant of phenylacetone monooxygenase: reduced state


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.216 
  • R-Value Work: 0.183 
  • R-Value Observed: 0.184 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Finding the Switch: Turning a Baeyer-Villiger Monooxygenase Into a Nadph Oxidase.

Brondani, P.B.Dudek, H.M.Martinoli, C.Mattevi, A.Fraaije, M.W.

(2014) J Am Chem Soc 136: 16966

  • DOI: https://doi.org/10.1021/ja508265b
  • Primary Citation of Related Structures:  
    4D03, 4D04

  • PubMed Abstract: 

    By a targeted enzyme engineering approach, we were able to create an efficient NADPH oxidase from a monooxygenase. Intriguingly, replacement of only one specific single amino acid was sufficient for such a monooxygenase-to-oxidase switch-a complete transition in enzyme activity. Pre-steady-state kinetic analysis and elucidation of the crystal structure of the C65D PAMO mutant revealed that the mutation introduces small changes near the flavin cofactor, resulting in a rapid decay of the peroxyflavin intermediate. The engineered biocatalyst was shown to be a thermostable, solvent tolerant, and effective cofactor-regenerating biocatalyst. Therefore, it represents a valuable new biocatalytic tool.


  • Organizational Affiliation

    Molecular Enzymology Group, University of Groningen , Nijenborgh 4, 9747AG Groningen, The Netherlands.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
PHENYLACETONE MONOOXYGENASE542Thermobifida fuscaMutation(s): 1 
EC: 1.14.13.92
UniProt
Find proteins for Q47PU3 (Thermobifida fusca (strain YX))
Explore Q47PU3 
Go to UniProtKB:  Q47PU3
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ47PU3
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.216 
  • R-Value Work: 0.183 
  • R-Value Observed: 0.184 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 107.879α = 90
b = 107.879β = 90
c = 107.044γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
Aimlessdata 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: 2014-12-10
    Type: Initial release
  • Version 1.1: 2014-12-24
    Changes: Database references
  • Version 1.2: 2023-12-20
    Changes: Data collection, Database references, Derived calculations, Other, Refinement description