1yqq

X-ray diffraction
2.6Å resolution

Escherichia coli purine nucleoside phosphorylase II, the product of the xapA gene

Released:

Function and Biology Details

Reaction catalysed:
Purine deoxynucleoside + phosphate = purine + 2'-deoxy-alpha-D-ribose 1-phosphate
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assemblies composition:
homo hexamer
homo trimer (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Purine nucleoside phosphorylase 2 Chains: A, B, C
Molecule details ›
Chains: A, B, C
Length: 277 amino acids
Theoretical weight: 29.87 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli
UniProt:
  • Canonical: P45563 (Residues: 1-277; Coverage: 100%)
Gene names: JW2398, b2407, pndA, xapA
Sequence domains: Phosphorylase superfamily
Structure domains: Nucleoside phosphorylase domain

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU RUH3R
Spacegroup: P21212
Unit cell:
a: 98.531Å b: 116.633Å c: 73.423Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.241 0.24 0.258
Expression system: Escherichia coli