1ytk

X-ray diffraction
2.65Å resolution

Crystal structure of a nicotinate phosphoribosyltransferase from Thermoplasma acidophilum with nicotinate mononucleotide

Released:

Function and Biology Details

Reaction catalysed:
Nicotinate + 5-phospho-alpha-D-ribose 1-diphosphate + ATP + H(2)O = beta-nicotinate D-ribonucleotide + diphosphate + ADP + phosphate
Biochemical function:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
homo hexamer (preferred)
PDBe Complex ID:
PDB-CPX-190847 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Putative nicotinate phosphoribosyltransferase Chain: A
Molecule details ›
Chain: A
Length: 398 amino acids
Theoretical weight: 43.7 KDa
Source organism: Thermoplasma acidophilum DSM 1728
Expression system: Escherichia coli
UniProt:
  • Canonical: Q9HJ28 (Residues: 1-392; Coverage: 100%)
Gene name: Ta1145
Sequence domains: Quinolinate phosphoribosyl transferase, C-terminal domain
Structure domains:

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 5.0.2
Spacegroup: P6322
Unit cell:
a: 135.191Å b: 135.191Å c: 119.66Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.206 0.201 0.253
Expression system: Escherichia coli