4-Coumaroyl-CoA Ligase::Stilbene Synthase fusion protein

Experimental Data Snapshot

  • Resolution: 3.10 Å
  • R-Value Free: 0.208 
  • R-Value Work: 0.177 
  • R-Value Observed: 0.179 

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This is version 1.3 of the entry. See complete history


Structural and Kinetic Analysis of the Unnatural Fusion Protein 4-Coumaroyl-CoA Ligase::Stilbene Synthase.

Wang, Y.Yi, H.Wang, M.Yu, O.Jez, J.M.

(2011) J Am Chem Soc 133: 20684-20687

  • DOI: https://doi.org/10.1021/ja2085993
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    To increase the biochemical efficiency of biosynthetic systems, metabolic engineers have explored different approaches for organizing enzymes, including the generation of unnatural fusion proteins. Previous work aimed at improving the biosynthesis of resveratrol, a stilbene associated a range of health-promoting activities, in yeast used an unnatural engineered fusion protein of Arabidopsis thaliana (thale cress) 4-coumaroyl-CoA ligase (At4CL1) and Vitis vinifera (grape) stilbene synthase (VvSTS) to increase resveratrol levels 15-fold relative to yeast expressing the individual enzymes. Here we present the crystallographic and biochemical analysis of the 4CL::STS fusion protein. Determination of the X-ray crystal structure of 4CL::STS provides the first molecular view of an artificial didomain adenylation/ketosynthase fusion protein. Comparison of the steady-state kinetic properties of At4CL1, VvSTS, and 4CL::STS demonstrates that the fusion protein improves catalytic efficiency of either reaction less than 3-fold. Structural and kinetic analysis suggests that colocalization of the two enzyme active sites within 70 Å of each other provides the basis for enhanced in vivo synthesis of resveratrol.

  • Organizational Affiliation

    Donald Danforth Plant Science Center, 975 North Warson Road, St. Louis, Missouri 63132, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Fusion Protein 4-coumarate--CoA ligase 1, Resveratrol synthase979Arabidopsis thalianaVitis vinifera
This entity is chimeric
Mutation(s): 0 
Gene Names: 4CL1At1g51680At4CL1F19C24.11VvSTSSTS1
EC: (PDB Primary Data), (PDB Primary Data)
Find proteins for Q42524 (Arabidopsis thaliana)
Explore Q42524 
Go to UniProtKB:  Q42524
Find proteins for Q2HY10 (Vitis vinifera)
Explore Q2HY10 
Go to UniProtKB:  Q2HY10
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupsQ2HY10Q42524
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 3.10 Å
  • R-Value Free: 0.208 
  • R-Value Work: 0.177 
  • R-Value Observed: 0.179 
  • Space Group: P 41 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 117.554α = 90
b = 117.554β = 90
c = 243.777γ = 90
Software Package:
Software NamePurpose
HKL-3000data collection
PHENIXmodel building
HKL-3000data reduction
HKL-3000data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-12-14
    Type: Initial release
  • Version 1.1: 2012-01-11
    Changes: Database references
  • Version 1.2: 2015-10-28
    Changes: Source and taxonomy
  • Version 1.3: 2017-08-23
    Changes: Source and taxonomy