1CSM

THE CRYSTAL STRUCTURE OF ALLOSTERIC CHORISMATE MUTASE AT 2.2 ANGSTROMS RESOLUTION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.310 
  • R-Value Work: 0.196 
  • R-Value Observed: 0.196 

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This is version 1.2 of the entry. See complete history


Literature

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 U S A 91: 10814-10818

  • DOI: 10.1073/pnas.91.23.10814
  • Primary Citation of Related Structures:  
    1CSM

  • PubMed Abstract: 
  • The crystal structure of an allosteric chorismate mutase, the Thr-226-->Ile mutant, from yeast Saccharomyces cerevisiae has been determined to 2.2-A resolution by using the multiple isomorphous replacement method. Solvent-flattening and electron-density modification were applied for phase improvement ...

    The crystal structure of an allosteric chorismate mutase, the Thr-226-->Ile mutant, from yeast Saccharomyces cerevisiae has been determined to 2.2-A resolution by using the multiple isomorphous replacement method. Solvent-flattening and electron-density modification were applied for phase improvement. The current crystallographic R factor is 0.196. The final model includes 504 of the 512 residues and 97 water molecules. In addition, two tryptophan molecules were identified in the interface between monomers. The overall structure is completely different from the reported structure of chorismate mutase from Bacillus subtilis. This structure showed 71% helices with essentially no beta-sheet structures.


    Organizational Affiliation

    Gibbs Chemical Laboratory, Harvard University, Cambridge, MA 02138.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CHORISMATE MUTASEA, B256Saccharomyces cerevisiaeMutation(s): 0 
EC: 5.4.99.5
UniProt
Find proteins for P32178 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P32178 
Go to UniProtKB:  P32178
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
TRP (Subject of Investigation/LOI)
Query on TRP

Download Ideal Coordinates CCD File 
C [auth A], D [auth B]TRYPTOPHAN
C11 H12 N2 O2
QIVBCDIJIAJPQS-VIFPVBQESA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.310 
  • R-Value Work: 0.196 
  • R-Value Observed: 0.196 
  • Space Group: P 61
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 95.8α = 90
b = 95.8β = 90
c = 157.9γ = 120
Software Package:
Software NamePurpose
MSCdata collection
X-PLORmodel building
X-PLORrefinement
MSCdata reduction
X-PLORphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1995-09-15
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance