1R3U

Crystal Structure of Hypoxanthine-Guanine Phosphoribosyltransferase from Thermoanaerobacter tengcongensis

• PDB DOI: https://doi.org/10.2210/pdb1R3U/pdb

• Classification: TRANSFERASE
• Organism(s): Caldanaerobacter subterraneus subsp. tengcongensis
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2003-10-03 Released: 2004-10-19 
• Deposition Author(s): Chen, Q., Liang, Y.H., Gu, X.C., Luo, M., Su, X.D.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.216 
• R-Value Work: 0.190 
• R-Value Observed: 0.190 

Starting Model: experimental

Literature

Crystal Structure of Hypoxanthine-Guanine Phosphoribosyltransferase from Thermoanaerobacter tengcongensis

Chen, Q., Liang, Y.H., GU, X.C., LUO, M., SU, X.D.

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.

Macromolecule Content

• Total Structure Weight: 45.63 kDa 
• Atom Count: 2,953 
• Modelled Residue Count: 357 
• Deposited Residue Count: 410 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Hypoxanthine-guanine phosphoribosyltransferase	A, B	205	Caldanaerobacter subterraneus subsp. tengcongensis	Mutation(s): 2  Gene Names: TTE2394 EC: 2.4.2.8
UniProt
Find proteins for Q8R7L0 (Caldanaerobacter subterraneus subsp. tengcongensis (strain DSM 15242 / JCM 11007 / NBRC 100824 / MB4)) Explore Q8R7L0  Go to UniProtKB:  Q8R7L0

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ACT	E [auth B]	ACETATE ION C2 H3 O2 QTBSBXVTEAMEQO-UHFFFAOYSA-M
MG	C [auth A], D [auth B]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.216 
• R-Value Work: 0.190 
• R-Value Observed: 0.190 
• Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 68.02	α = 90
b = 139.51	β = 90
c = 97.32	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
PROTEUM PLUS	data reduction
PROTEUM PLUS	data scaling
CNS	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2004-10-19 
Deposition Author(s): Chen, Q., Liang, Y.H., Gu, X.C., Luo, M., Su, X.D.

Revision History  

• Version 1.0: 2004-10-19
  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: 2021-11-10
  Changes: Database references, Derived calculations
• Version 1.4: 2023-10-25
  Changes: Data collection, Refinement description