3QTY

Crystal structure of Phosphoribosylaminoimidazole Synthetase from Francisella tularensis complexed with pyrophosphate

• PDB DOI: https://doi.org/10.2210/pdb3QTY/pdb

• Classification: LIGASE
• Organism(s): Francisella tularensis subsp. tularensis
• Expression System: Escherichia coli BL21
• Mutation(s): No 


• Deposited: 2011-02-23 Released: 2011-03-16 
• Deposition Author(s): Maltseva, N., Kim, Y., Hasseman, J., Anderson, W.F., Joachimiak, A., Center for Structural Genomics of Infectious Diseases (CSGID)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 0.202 
• R-Value Work: 0.169 
• R-Value Observed: 0.171 

Literature

Crystal structure of Phosphoribosylaminoimidazole Synthetase from Francisella tularensis complexed with pyrophosphate

Maltseva, N., Kim, Y., Hasseman, J., Anderson, W.F., Joachimiak, A.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

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

Macromolecule Content

• Total Structure Weight: 78.77 kDa 
• Atom Count: 6,183 
• Modelled Residue Count: 678 
• Deposited Residue Count: 700 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Phosphoribosylaminoimidazole (AIR) synthetase	A, B	350	Francisella tularensis subsp. tularensis	Mutation(s): 0  Gene Names: FTT_0893, purM EC: 6.3.3.1
UniProt
Find proteins for Q5NGF2 (Francisella tularensis subsp. tularensis (strain SCHU S4 / Schu 4)) Explore Q5NGF2  Go to UniProtKB:  Q5NGF2

Small Molecules

Ligands 5 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
POP	E [auth A], F [auth A], J [auth B]	PYROPHOSPHATE 2- H2 O7 P2 XPPKVPWEQAFLFU-UHFFFAOYSA-L
TRS	D [auth A], I [auth B], K [auth B]	2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL C4 H12 N O3 LENZDBCJOHFCAS-UHFFFAOYSA-O
SO4	C [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L
PO4	G [auth A], H [auth B]	PHOSPHATE ION O4 P NBIIXXVUZAFLBC-UHFFFAOYSA-K
FMT	L [auth B], M [auth B]	FORMIC ACID C H2 O2 BDAGIHXWWSANSR-UHFFFAOYSA-N

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

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 0.202 
• R-Value Work: 0.169 
• R-Value Observed: 0.171 
• Space Group: P 2₁ 2₁ 2₁
• Diffraction Data: https://doi.org/10.18430/M33QTY

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 65.482	α = 90
b = 88.721	β = 90
c = 112.982	γ = 90

Software Package:

Software Name	Purpose
SBC-Collect	data collection
HKL-3000	data collection
HKL-3000	phasing
MOLREP	phasing
PHENIX	refinement
HKL-3000	data reduction
HKL-3000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2011-03-16 
Deposition Author(s): Maltseva, N., Kim, Y., Hasseman, J., Anderson, W.F., Joachimiak, A., Center for Structural Genomics of Infectious Diseases (CSGID)

Revision History  

• Version 1.0: 2011-03-16
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2023-09-13
  Changes: Data collection, Database references, Derived calculations, Refinement description
• Version 1.3: 2023-12-06
  Changes: Data collection