PDBe 1ka1

X-ray diffraction
1.3Å resolution

The PAPase Hal2p complexed with calcium and magnesium ions and reaction substrate: PAP


Function and Biology Details

Reaction catalysed:
Adenosine 3',5'-bisphosphate + H(2)O = adenosine 5'-phosphate + phosphate. 
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
3'(2'),5'-bisphosphate nucleotidase Chain: A
Molecule details ›
Chain: A
Length: 357 amino acids
Theoretical weight: 39.2 KDa
Source organism: Saccharomyces cerevisiae
Expression system: Saccharomyces cerevisiae
  • Canonical: P32179 (Residues: 1-357; Coverage: 100%)
Gene names: HAL2, MET22, YOL064C
Sequence domains: Inositol monophosphatase family
Structure domains:

Ligands and Environments

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SRS BEAMLINE PX9.6
Spacegroup: P21
Unit cell:
a: 54.875Å b: 44.968Å c: 72.11Å
α: 90° β: 110.72° γ: 90°
R R work R free
0.134 0.133 0.169
Expression system: Saccharomyces cerevisiae