X-ray diffraction
2.2Å resolution

Catalytic subunit HisG from Psychrobacter arcticus ATP phosphoribosyltransferase (HisZG ATPPRT) in complex with AMP


Function and Biology Details

Reaction catalysed:
1-(5-phospho-beta-D-ribosyl)-ATP + diphosphate = ATP + 5-phospho-alpha-D-ribose 1-diphosphate
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
ATP phosphoribosyltransferase Chain: A
Molecule details ›
Chain: A
Length: 232 amino acids
Theoretical weight: 25.24 KDa
Source organism: Psychrobacter arcticus 273-4
Expression system: Escherichia coli BL21(DE3)
  • Canonical: Q4FQF7 (Residues: 1-231; Coverage: 100%)
Gene names: Psyc_1903, hisG
Sequence domains: ATP phosphoribosyltransferase
Structure domains: Periplasmic binding protein-like II

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU MICROMAX-007 HF
Unit cell:
a: 70.82Å b: 33.94Å c: 92.407Å
α: 90° β: 105.36° γ: 90°
R R work R free
0.187 0.185 0.233
Expression system: Escherichia coli BL21(DE3)