Crystallization of Chlorella deoxyuridine triphosphatase

Laura Badalucco, Ishwari Poudel, Mamoru Yamanishi, Chandrasekhar Natarajan, Hideaki Moriyama

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Deoxyuridine triphosphatase (dUTPase) is a ubiquitous enzyme that has been widely studied owing to its function and evolutionary significance. The gene coding for the dUTPase from the Chlorella alga was codon-optimized and synthesized. The synthetic gene was expressed in Escherichia coli and recombinant core Chlorella dUTPase (chdUTPase) was purified. Crystallization of chdUTPase was performed by the repetitive hanging-drop vapor-diffusion method at 298 K with ammonium sulfate as the precipitant. In the presence of 2′ - deoxyuridine-5′-[(,β)-imido]triphosphate and magnesium, the enzyme produced die-shaped hexagonal R3 crystals with unit-cell parameters a = b = 66.9, c = 93.6 Å, = 120°. X-ray diffraction data for chdUTPase were collected to 1.6 Å resolution. The crystallization of chdUTPase with manganese resulted in very fragile clusters of needles.

Original languageEnglish (US)
Pages (from-to)1599-1602
Number of pages4
JournalActa Crystallographica Section F: Structural Biology and Crystallization Communications
Issue number12
StatePublished - Dec 2011


  • Chlorella
  • Chlorella virus
  • dUTPases

ASJC Scopus subject areas

  • Biophysics
  • Structural Biology
  • Biochemistry
  • Genetics
  • Condensed Matter Physics


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