DsdA (D-serine deaminase): a new heterologous MX cassette for gene disruption and selection in Saccharomyces cerevisiae.

Journal Article (Journal Article)

Dominant drug resistance markers offer experimental flexibility in the study of Saccharomyces cerevisiae by eliminating the dependence on auxotrophic mutations and, because they are phenotypically neutral, avoid the deleterious effects of auxotrophic mutations. We have developed a new dominant resistance marker, dsdAMX4, for use in the genetic manipulation of S. cerevisiae. The dsdA gene, which is derived from Escherichia coli and encodes a D-serine deaminase, confers to S. cerevisiae resistance to D-serine and the ability to use D-serine as a nitrogen source. Here we describe the construction of a dsdAMX4 cassette, capable of expression in S. cerevisiae, and the characterization of this new marker for use in chromosomal gene disruption. The unique selection properties of the dsdAMX4 cassette make it an important addition to the existing array of S. cerevisiae genetic tools.

Full Text

Duke Authors

Cited Authors

  • Vorachek-Warren, MK; McCusker, JH

Published Date

  • January 30, 2004

Published In

Volume / Issue

  • 21 / 2

Start / End Page

  • 163 - 171

PubMed ID

  • 14755641

International Standard Serial Number (ISSN)

  • 0749-503X

Digital Object Identifier (DOI)

  • 10.1002/yea.1074


  • eng

Conference Location

  • England