1SQ1 | pdb_00001sq1

Crystal Structure of the Chorismate Synthase from Campylobacter jejuni, Northeast Structural Genomics Target BR19

• PDB DOI: https://doi.org/10.2210/pdb1SQ1/pdb

• Classification: LYASE
• Organism(s): Campylobacter jejuni
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2004-03-17 Released: 2004-04-06 
• Deposition Author(s): Forouhar, F., Lee, I., Vorobiev, S.M., Xiao, R., Acton, T.B., Montelione, G.T., Tong, L., Hunt, J.F., Northeast Structural Genomics Consortium (NESG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free: 
  0.279 (Depositor), 0.281 (DCC) 
• R-Value Work: 
  0.224 (Depositor), 0.231 (DCC) 
• R-Value Observed: 
  0.224 (Depositor) 

Literature

Crystal Structure of the Chorismate Synthase from Campylobacter jejuni, Northeast Structural Genomics Target BR19

Forouhar, F., Lee, I., Vorobiev, S.M., Xiao, R., Acton, T.B., Montelione, G.T., Tong, L., Hunt, J.F.

To be published.

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,PQS (software)

Macromolecule Content 

• Total Structure Weight: 40.9 kDa 
• Atom Count: 2,168 
• Modeled Residue Count: 288 
• Deposited Residue Count: 370 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Chorismate synthase	A	370	Campylobacter jejuni	Mutation(s): 7  Gene Names: AROC OR CJ1634 EC: 4.2.3.5
UniProt
Find proteins for Q9PM41 (Campylobacter jejuni subsp. jejuni serotype O:2 (strain ATCC 700819 / NCTC 11168)) Explore Q9PM41  Go to UniProtKB:  Q9PM41

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	B [auth A], C [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

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

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free:  0.279 (Depositor), 0.281 (DCC) 
• R-Value Work:  0.224 (Depositor), 0.231 (DCC) 
• R-Value Observed: 0.224 (Depositor) 

Space Group: I 4₁ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 73.6	α = 90
b = 73.6	β = 90
c = 338.559	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
SnB	phasing
SOLVE	phasing
CNS	refinement

Structure Validation

Currently 1SQ1 does not have a validation slider image.

Entry History 

Deposition Data

• Released Date: 2004-04-06 
Deposition Author(s): Forouhar, F., Lee, I., Vorobiev, S.M., Xiao, R., Acton, T.B., Montelione, G.T., Tong, L., Hunt, J.F., Northeast Structural Genomics Consortium (NESG)

Revision History  

• Version 1.0: 2004-04-06
  Type: Initial release
  
• Version 1.1: 2008-04-29
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Derived calculations, Version format compliance
• Version 1.3: 2017-10-11
  Changes: Refinement description
• Version 1.4: 2024-11-13
  Changes: Data collection, Database references, Derived calculations, Structure summary