2brf

X-ray diffraction
1.4Å resolution

Crystal Structure of the FHA Domain of Human Polynucleotide Kinase 3' Phosphatase

Released:

Function and Biology Details

Reactions catalysed:
ATP + 5'-dephospho-DNA = ADP + 5'-phospho-DNA
A 3'-phosphopolynucleotide + H(2)O = a polynucleotide + phosphate
Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned
Structure domain:

Structure analysis Details

Assembly composition:
monomeric (preferred)
PDBe Complex ID:
PDB-CPX-188764 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Bifunctional polynucleotide phosphatase/kinase Chain: A
Molecule details ›
Chain: A
Length: 110 amino acids
Theoretical weight: 11.81 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: Q96T60 (Residues: 1-110; Coverage: 21%)
Gene name: PNKP
Sequence domains: FHA domain
Structure domains: Tumour Suppressor Smad4

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-1
Spacegroup: P21
Unit cell:
a: 31.812Å b: 40.047Å c: 37.512Å
α: 90° β: 90.96° γ: 90°
R-values:
R R work R free
0.152 0.15 0.183
Expression system: Escherichia coli