1JFG

TRICHODIENE SYNTHASE FROM FUSARIUM SPOROTRICHIOIDES COMPLEXED WITH DIPHOSPHATE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.217 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structure of trichodiene synthase from Fusarium sporotrichioides provides mechanistic inferences on the terpene cyclization cascade.

Rynkiewicz, M.J.Cane, D.E.Christianson, D.W.

(2001) Proc Natl Acad Sci U S A 98: 13543-13548

  • DOI: 10.1073/pnas.231313098
  • Primary Citation of Related Structures:  
    1JFA, 1JFG

  • PubMed Abstract: 
  • The x-ray crystal structure of recombinant trichodiene synthase from Fusarium sporotrichioides has been determined to 2.5-A resolution, both unliganded and complexed with inorganic pyrophosphate. This reaction product coordinates to three Mg(2+) ions near the mouth of the active site cleft ...

    The x-ray crystal structure of recombinant trichodiene synthase from Fusarium sporotrichioides has been determined to 2.5-A resolution, both unliganded and complexed with inorganic pyrophosphate. This reaction product coordinates to three Mg(2+) ions near the mouth of the active site cleft. A comparison of the liganded and unliganded structures reveals a ligand-induced conformational change that closes the mouth of the active site cleft. Binding of the substrate farnesyl diphosphate similarly may trigger this conformational change, which would facilitate catalysis by protecting reactive carbocationic intermediates in the cyclization cascade. Trichodiene synthase also shares significant structural similarity with other sesquiterpene synthases despite a lack of significant sequence identity. This similarity indicates divergence from a common ancestor early in the evolution of terpene biosynthesis.


    Organizational Affiliation

    Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104-6323, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
TRICHODIENE SYNTHASEA, B374Fusarium sporotrichioidesMutation(s): 0 
Gene Names: TRI5TOX 5
EC: 4.1.99.6 (PDB Primary Data), 4.2.3.6 (UniProt)
UniProt
Find proteins for P13513 (Fusarium sporotrichioides)
Explore P13513 
Go to UniProtKB:  P13513
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.217 
  • Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 122.574α = 90
b = 122.574β = 90
c = 150.869γ = 120
Software Package:
Software NamePurpose
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
CNSphasing

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2001-11-30
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Non-polymer description, Version format compliance