Crystallization and aldo-keto reductase activity of Gcy1p from Saccharomyces cerevisiae

Eugene Hur, David K. Wilson

Research output: Contribution to journalArticle

17 Scopus citations

Abstract

Crystallization and preliminary X-ray diffraction studies of Gcy1p, an aldo-keto reductase from Saccharomyces cerevisiae, have been performed. Both the wild type and a double-mutant form of Gcy1p were crystallized using the hanging-drop method at 298 K; however, only the double-mutant form has so far yielded crystals suitable for X-ray diffraction analysis. These crystals belonged to the primitive monoclinic space group P21, with unit-cell parameters a = 50.94, b = 65.64, c = 86.23 Å, β = 92.64°. Diffraction data were collected to 2.5 Å. Assuming two 35 kDa subunits in the asymmetric unit yielded a V(m) of 2.06 Å3 Da-1. Additionally, a kinetic study performed by measuring the rate of oxidation of NADPH in the presence of several substrates indicates that both wild-type and double-mutant proteins are enzymes possessing NADPH-dependent reductase activity.

Original languageEnglish (US)
Pages (from-to)763-765
Number of pages3
JournalActa Crystallographica Section D: Biological Crystallography
Volume56
Issue number6
DOIs
StatePublished - 2000

ASJC Scopus subject areas

  • Clinical Biochemistry
  • Biochemistry, Genetics and Molecular Biology(all)
  • Biochemistry
  • Biophysics
  • Condensed Matter Physics
  • Structural Biology

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