8BAM

Eugenol Oxidase (EUGO) from Rhodococcus jostii RHA1, tenfold mutant active on propanol syringol


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.65 Å
  • R-Value Free: 0.206 
  • R-Value Work: 0.172 
  • R-Value Observed: 0.174 

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

One-Pot Biocatalytic Synthesis of rac -Syringaresinol from a Lignin-Derived Phenol.

Guo, Y.Alvigini, L.Saifuddin, M.Ashley, B.Trajkovic, M.Alonso-Cotchico, L.Mattevi, A.Fraaije, M.W.

(2023) ACS Catal 13: 14639-14649

  • DOI: https://doi.org/10.1021/acscatal.3c04399
  • Primary Citation of Related Structures:  
    8BAM, 8BAP

  • PubMed Abstract: 

    The drive for a circular bioeconomy has resulted in a great demand for renewable, biobased chemicals. We present a one-pot biocatalytic cascade reaction for the production of racemic syringaresinol, a lignan with applications as a nutraceutical and in polymer chemistry. The process consumes dihydrosinapyl alcohol, which can be produced renewably from the lignocellulosic material. To achieve this, a variant of eugenol oxidase was engineered for the oxidation of dihydrosinapyl alcohol into sinapyl alcohol with good conversion and chemoselectivity. The crystal structure of the engineered oxidase revealed the molecular basis of the influence of the mutations on the chemoselectivity of the oxidation of dihydrosinapyl alcohol. By using horseradish peroxidase, the subsequent oxidative dimerization of sinapyl alcohol into syringaresinol was achieved. Conditions for the one-pot, two-enzyme synthesis were optimized, and a high yield of syringaresinol was achieved by cascading the oxidase and peroxidase steps in a stepwise fashion. This study demonstrates the efficient production of syringaresinol from a compound that can be renewed by reductive catalytic fractionation of lignocellulose, providing a biocatalytic route for generating a valuable compound from lignin.


  • Organizational Affiliation

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


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Probable vanillyl-alcohol oxidase
A, B
526Rhodococcus jostii RHA1Mutation(s): 10 
Gene Names: RHA1_ro03282
EC: 1.1.3.38
UniProt
Find proteins for Q0SBK1 (Rhodococcus jostii (strain RHA1))
Explore Q0SBK1 
Go to UniProtKB:  Q0SBK1
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ0SBK1
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.65 Å
  • R-Value Free: 0.206 
  • R-Value Work: 0.172 
  • R-Value Observed: 0.174 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 57.654α = 90
b = 98.058β = 90
c = 177.336γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
PHENIXrefinement
XDSdata reduction
Aimlessdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
European Union (EU)European UnionGrant Agreement No. 837890 (SMARTBOX).

Revision History  (Full details and data files)

  • Version 1.0: 2023-10-25
    Type: Initial release
  • Version 1.1: 2023-11-01
    Changes: Advisory, Database references, Derived calculations
  • Version 1.2: 2023-12-13
    Changes: Database references