1Q1L

Crystal Structure of Chorismate Synthase

• PDB DOI: https://doi.org/10.2210/pdb1Q1L/pdb

• Classification: LYASE
• Organism(s): Aquifex aeolicus
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2003-07-21 Released: 2003-09-30 
• Deposition Author(s): Viola, C.M., Saridakis, V., Christendat, D., Midwest Center for Structural Genomics (MCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.05 Å
• R-Value Free: 0.246 
• R-Value Work: 0.209 
• R-Value Observed: 0.209 

Literature

Crystal structure of chorismate synthase from Aquifex aeolicus reveals a novel beta alpha beta sandwich topology

Viola, C.M., Saridakis, V., Christendat, D.

(2004) Proteins 54: 166-169

• PubMed: 14705034 
• DOI: https://doi.org/10.1002/prot.10592
• Primary Citation of Related Structures:  
  1Q1L

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Organizational Affiliation: 

Department of Botany, University of Toronto, Toronto, Ontario, Canada.

Biological Assembly 1  

Global Symmetry: Dihedral - D2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 179.72 kDa 
• Atom Count: 11,091 
• Modelled Residue Count: 1,339 
• Deposited Residue Count: 1,604 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Chorismate synthase	A, B, C, D	401	Aquifex aeolicus	Mutation(s): 7  Gene Names: AROC EC: 4.2.3.5
UniProt
Find proteins for O66493 (Aquifex aeolicus (strain VF5)) Explore O66493  Go to UniProtKB:  O66493

Small Molecules

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A, B, C, D	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.05 Å
• R-Value Free: 0.246 
• R-Value Work: 0.209 
• R-Value Observed: 0.209 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 153.428	α = 90
b = 95.959	β = 93.04
c = 113.462	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
SOLVE	phasing
RESOLVE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2003-09-30 
Deposition Author(s): Viola, C.M., Saridakis, V., Christendat, D., Midwest Center for Structural Genomics (MCSG)

Revision History  

• Version 1.0: 2003-09-30
  Type: Initial release
  
• Version 1.1: 2008-04-29
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2018-01-31
  Changes: Experimental preparation
• Version 1.4: 2018-06-13
  Changes: Data collection
• Version 1.5: 2024-10-16
  Changes: Data collection, Database references, Derived calculations, Structure summary