5FHI

Crystallographic structure of PsoE without Co


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.41 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.185 
  • R-Value Observed: 0.191 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Oxidative trans to cis Isomerization of Olefins in Polyketide Biosynthesis.

Yamamoto, T.Tsunematsu, Y.Hara, K.Suzuki, T.Kishimoto, S.Kawagishi, H.Noguchi, H.Hashimoto, H.Tang, Y.Hotta, K.Watanabe, K.

(2016) Angew Chem Int Ed Engl 55: 6207-6210

  • DOI: 10.1002/anie.201600940
  • Primary Citation of Related Structures:  
    5F8B, 5FHI

  • PubMed Abstract: 
  • Geometric isomerization can expand the scope of biological activities of natural products. The observed chemical diversity among the pseurotin-type fungal secondary metabolites is in part generated by a trans to cis isomerization of an olefin. In vitro characterizations of pseurotin biosynthetic enzymes revealed that the glutathione S-transferase PsoE requires participation of the bifunctional C-methyltransferase/epoxidase PsoF to complete the trans to cis isomerization of the pathway intermediate presynerazol ...

    Geometric isomerization can expand the scope of biological activities of natural products. The observed chemical diversity among the pseurotin-type fungal secondary metabolites is in part generated by a trans to cis isomerization of an olefin. In vitro characterizations of pseurotin biosynthetic enzymes revealed that the glutathione S-transferase PsoE requires participation of the bifunctional C-methyltransferase/epoxidase PsoF to complete the trans to cis isomerization of the pathway intermediate presynerazol. The crystal structure of the PsoE/glutathione/presynerazol complex indicated stereospecific glutathione-presynerazol conjugate formation is the principal function of PsoE. Moreover, PsoF was identified to have an additional, unexpected oxidative isomerase activity, thus making it a trifunctional enzyme which is key to the complexity generation in pseurotin biosynthesis. Through the study, we identified a novel mechanism of accomplishing a seemingly simple trans to cis isomerization reaction.


    Organizational Affiliation

    Department of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, 422-8526, Japan. kenji55@u-shizuoka-ken.ac.jp.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Glutathione S-transferase, putativeA244Aspergillus fumigatus Af293Mutation(s): 0 
Gene Names: AFUA_8G00580psoE
EC: 2.5.1
UniProt
Find proteins for Q4WB03 (Neosartorya fumigata (strain ATCC MYA-4609 / Af293 / CBS 101355 / FGSC A1100))
Explore Q4WB03 
Go to UniProtKB:  Q4WB03
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GSH
Query on GSH

Download Ideal Coordinates CCD File 
B [auth A]GLUTATHIONE
C10 H17 N3 O6 S
RWSXRVCMGQZWBV-WDSKDSINSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.41 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.185 
  • R-Value Observed: 0.191 
  • Space Group: P 65 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 145.413α = 90
b = 145.413β = 90
c = 51.266γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
AutoSolphasing
PHASERphasing
Cootmodel building
SCALAdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2016-04-20
    Type: Initial release
  • Version 1.1: 2017-07-05
    Changes: Database references