1EE0

2-PYRONE SYNTHASE COMPLEXED WITH ACETOACETYL-COA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.05 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.189 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural control of polyketide formation in plant-specific polyketide synthases.

Jez, J.M.Austin, M.B.Ferrer, J.Bowman, M.E.Schroder, J.Noel, J.P.

(2000) Chem Biol 7: 919-930

  • DOI: 10.1016/s1074-5521(00)00041-7
  • Primary Citation of Related Structures:  
    1EE0

  • PubMed Abstract: 
  • Polyketide synthases (PKSs) generate molecular diversity by utilizing different starter molecules and by controlling the final length of the polyketide. Although exploitation of this mechanistic variability has produced novel polyketides, the structu ...

    Polyketide synthases (PKSs) generate molecular diversity by utilizing different starter molecules and by controlling the final length of the polyketide. Although exploitation of this mechanistic variability has produced novel polyketides, the structural foundation of this versatility is unclear. Plant-specific PKSs are essential for the biosynthesis of anti-microbial phytoalexins, anthocyanin floral pigments, and inducers of Rhizobium nodulation genes. 2-Pyrone synthase (2-PS) and chalcone synthase (CHS) are plant-specific PKSs that share 74% amino acid sequence identity. 2-PS forms the triketide methylpyrone from an acetyl-CoA starter molecule and two malonyl-CoAs. CHS uses a p-coumaroyl-CoA starter molecule and three malonyl-CoAs to produce the tetraketide chalcone. Our goal was to elucidate the molecular basis of starter molecule selectivity and control of polyketide length in this class of PKS.


    Organizational Affiliation

    Structural Biology Laboratory, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
2-PYRONE SYNTHASEAB402Gerbera hybrid cultivarMutation(s): 1 
Gene Names: 2PSCHS2
EC: 2.3.1.74 (PDB Primary Data), 2.3.1 (UniProt)
Find proteins for P48391 (Gerbera hybrida)
Explore P48391 
Go to UniProtKB:  P48391
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CAA
Query on CAA

Download CCD File 
A, B
ACETOACETYL-COENZYME A
C25 H40 N7 O18 P3 S
OJFDKHTZOUZBOS-CITAKDKDSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
CSD
Query on CSD
A,BL-PEPTIDE LINKINGC3 H7 N O4 SCYS
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.05 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.189 
  • Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 83.406α = 90
b = 83.406β = 90
c = 240.625γ = 120
Software Package:
Software NamePurpose
EPMRphasing
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-01-31
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance