› 1r3u

X-ray diffraction
2.5Å resolution

Crystal Structure of Hypoxanthine-Guanine Phosphoribosyltransferase from Thermoanaerobacter tengcongensis

Released:
DOI: 10.2210/pdb1r3u/pdb
PDB entry 1r3u coloured by chain, front view.
PDB entry 1r3u coloured by chain, side view.
PDB entry 1r3u coloured by chain, top view.
Source organism: Caldanaerobacter subterraneus subsp. tengcongensis
Entry authors: Chen Q, Liang YH, Gu XC, Luo M, Su XD

Function and Biology Details

Reaction catalysed: 
IMP + diphosphate = hypoxanthine + 5-phospho-alpha-D-ribose 1-diphosphate
Biochemical function:
Biological process:
Cellular component:
Sequence domains:
Structure domain:

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-185929 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Hypoxanthine phosphoribosyltransferase Chains: A, B
Molecule details ›
Chains: A, B
Length: 205 amino acids
Theoretical weight: 22.76 KDa
Source organism: Caldanaerobacter subterraneus subsp. tengcongensis
Expression system: Escherichia coli
UniProt:
  • Canonical: Q8R7L0 (Residues: 1-181; Coverage: 100%)
Gene names: Hpt, TTE2394
Sequence domains: Phosphoribosyl transferase domain
Structure domains: Rossmann fold

Ligands and Environments

2 bound ligands:
Ligand MG 2 x MG
Ligand ACT 1 x ACT
No modified residues

Experiments and Validation Details

Entry percentile scores
Spacegroup: C2221
Unit cell:
a: 68.02Å b: 139.51Å c: 97.32Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.19 0.19 0.216
Expression system: Escherichia coli

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