4CQJ

Fluorinase substrate flexibility enables last step aqueous and ambient 18F fluorination of a RGD peptide for positron emission tomography

• PDB DOI: https://doi.org/10.2210/pdb4CQJ/pdb

• Classification: TRANSFERASE
• Organism(s): Streptantibioticus cattleyicolor
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2014-02-17 Released: 2014-05-28 
• Deposition Author(s): McMahon, S.A., Thompson, S., O'Hagan, D., Naismith, J.H.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.44 Å
• R-Value Free: 0.222 
• R-Value Work: 0.176 
• R-Value Observed: 0.178 

Literature

Structure of a Bacterial Fluorinating Enzyme with

Thomson, S., Mcmahon, S.A., Naismith, J.H., O'Hagan, D.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C3  (Explore in 3D)
Global Stoichiometry: Homo 3-mer - A3 

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

Macromolecule Content

• Total Structure Weight: 98.08 kDa 
• Atom Count: 6,800 
• Modelled Residue Count: 873 
• Deposited Residue Count: 897 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
5'-FLUORO-5'-DEOXY-ADENOSINE SYNTHASE	A, B, C	299	Streptantibioticus cattleyicolor	Mutation(s): 0  EC: 2.5.1.63
UniProt
Find proteins for Q70GK9 (Streptantibioticus cattleyicolor) Explore Q70GK9  Go to UniProtKB:  Q70GK9

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
EFA	D [auth A], E [auth B], F [auth C]	5'-deoxy-2-ethynyl-5'-fluoroadenosine C12 H12 F N5 O3 QQEYBKXSSQIJRJ-JJNLEZRASA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.44 Å
• R-Value Free: 0.222 
• R-Value Work: 0.176 
• R-Value Observed: 0.178 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 110.49	α = 90
b = 115.05	β = 111.63
c = 74.97	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
xia2	data reduction
xia2	data scaling
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2014-05-28 
Deposition Author(s): McMahon, S.A., Thompson, S., O'Hagan, D., Naismith, J.H.

Revision History  

• Version 1.0: 2014-05-28
  Type: Initial release
  
• Version 1.1: 2023-12-20
  Changes: Data collection, Database references, Derived calculations, Other, Refinement description