5CLJ

Structure of PurE (N5-carboxyaminoimidazole ribonucleotide mutase) H59N from the acidophilic bacterium Acetobacter aceti, complexed with AIR (5-aminoimidazole ribonucleotide) and CO2

• PDB DOI: https://doi.org/10.2210/pdb5CLJ/pdb

• Classification: ISOMERASE
• Organism(s): Acetobacter aceti 1023
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2015-07-16 Released: 2016-07-27 
• Deposition Author(s): Starks, C.M., Kappock, T.J.
• Funding Organization(s): Herman Frasch Foundation, National Science Foundation (NSF, United States), Department of Education

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.85 Å
• R-Value Free: 0.182 
• R-Value Work: 0.151 
• R-Value Observed: 0.152 

Starting Model: experimental

Re-refinement Note

This entry reflects an alternative modeling of the original data in: 2fwp

Literature

Structure of a single tryptophan mutant of Acetobacter aceti PurE

Sullivan, K.L., Tranchimand, S., Kappock, T.J.

To be published.

Biological Assembly 1  

Global Symmetry: Dihedral - D4  (Explore in 3D)
Global Stoichiometry: Homo 8-mer - A8 

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

Macromolecule Content

• Total Structure Weight: 38.31 kDa 
• Atom Count: 2,789 
• Modelled Residue Count: 320 
• Deposited Residue Count: 366 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
N5-carboxyaminoimidazole ribonucleotide mutase	A, B	183	Acetobacter aceti 1023	Mutation(s): 1  Gene Names: purE, AZ09_02690 EC: 5.4.99.18

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
AIR	C [auth A]	5-AMINOIMIDAZOLE RIBONUCLEOTIDE C8 H14 N3 O7 P PDACUKOKVHBVHJ-XVFCMESISA-N
CIT	E [auth B]	CITRIC ACID C6 H8 O7 KRKNYBCHXYNGOX-UHFFFAOYSA-N
EDO	F [auth B]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N
CO2	D [auth A]	CARBON DIOXIDE C O2 CURLTUGMZLYLDI-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.85 Å
• R-Value Free: 0.182 
• R-Value Work: 0.151 
• R-Value Observed: 0.152 
• Space Group: I 4 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 98.683	α = 90
b = 98.683	β = 90
c = 165.59	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2016-07-27 
Deposition Author(s): Starks, C.M., Kappock, T.J.

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Funding Organization	Location	Grant Number
Herman Frasch Foundation	United States	531-HF02
National Science Foundation (NSF, United States)	United States	MCB0347250
Department of Education	United States	200A010213

Revision History  

• Version 1.0: 2016-07-27
  Type: Initial release
  
• Version 1.1: 2017-09-20
  Changes: Author supporting evidence, Derived calculations
• Version 1.2: 2019-11-27
  Changes: Author supporting evidence
• Version 1.3: 2023-09-27
  Changes: Data collection, Database references, Refinement description