5CSM

YEAST CHORISMATE MUTASE, T226S MUTANT, COMPLEX WITH TRP


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.186 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Mechanisms of catalysis and allosteric regulation of yeast chorismate mutase from crystal structures.

Strater, N.Schnappauf, G.Braus, G.Lipscomb, W.N.

(1997) Structure 5: 1437-1452

  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Chorismate mutase (CM) catalyzes the Claisen rearrangement of chorismate to prephenate, notably the only known enzymatically catalyzed pericyclic reaction in primary metabolism. Structures of the enzyme in complex with an endo-oxabicyclic transition ...

    Chorismate mutase (CM) catalyzes the Claisen rearrangement of chorismate to prephenate, notably the only known enzymatically catalyzed pericyclic reaction in primary metabolism. Structures of the enzyme in complex with an endo-oxabicyclic transition state analogue inhibitor, previously determined for Bacillus subtilis and Escherichia coli CM, provide structural insight into the enzyme mechanism. In contrast to these bacterial CMs, yeast CM is allosterically regulated in two ways: activation by tryptophan and inhibition by tyrosine. Yeast CM exists in two allosteric states, R (active) and t (inactive).


    Related Citations: 
    • Location of the Active Site of Allosteric Chorismate Mutase from Saccharomyces Cerevisiae, and Comments on the Catalytic and Regulatory Mechanisms
      Xue, Y.,Lipscomb, W.N.
      (1995) Proc.Natl.Acad.Sci.USA 92: 10595
    • The Crystal Structure of Allosteric Chorismate Mutase at 2.2-A Resolution
      Xue, Y.,Lipscomb, W.N.,Graf, R.,Schnappauf, G.,Braus, G.
      (1994) Proc.Natl.Acad.Sci.USA 91: 10814
    • Crystal Structure of the T State of Allosteric Yeast Chorismate Mutase and Comparison with the R State
      Strater, N.,Hakansson, K.,Schnappauf, G.,Braus, G.,Lipscomb, W.N.
      (1996) Proc.Natl.Acad.Sci.USA 93: 3330


    Organizational Affiliation

    Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA 02138, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CHORISMATE MUTASE
A
256Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 1 
Gene Names: ARO7 (OSM2)
EC: 5.4.99.5
Find proteins for P32178 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P32178
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
TRP
Query on TRP

Download SDF File 
Download CCD File 
A
TRYPTOPHAN
C11 H12 N2 O2
QIVBCDIJIAJPQS-VIFPVBQESA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.186 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 94.600α = 90.00
b = 51.400β = 116.60
c = 66.800γ = 90.00
Software Package:
Software NamePurpose
X-PLORphasing
X-PLORrefinement
X-PLORmodel building
XDSdata reduction
XDSdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-01-14
    Type: Initial release
  • Version 1.1: 2008-03-25
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance