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A vector system for genomic FLAG epitope-tagging in Schizosaccharomyces pombe
Journal article

A vector system for genomic FLAG epitope-tagging in Schizosaccharomyces pombe

Chiaki Noguchi, Mikael V Garabedian, Marriam Malik and Eishi Noguchi
Biotechnology journal, v 3(9-10), pp 1280-1285
Oct 2008
DOI: https://doi.org/10.1002/biot.200800140
PMID: 18729046

Abstract

Schizosaccharomyces - genetics Schizosaccharomyces pombe Proteins - genetics Genome, Fungal - genetics Oligopeptides Peptides - genetics Epitopes - genetics Genetic Vectors - genetics
The fission yeast Schizosaccharomyces pombe is a popular model organism to study various cellular processes, although research tools available for S. pombe are relatively inadequate. To facilitate genetic and biochemical investigation in S. pombe, we report here a system of vectors for genomic FLAG epitope-tagging. These vectors enable us to amplify gene-targeting fragments for integration into specific loci of the S. pombe genome. All vectors in this report were designed to express FLAG epitope-tagged proteins from their endogenous genomic loci. Vectors for N-terminal FLAG epitope-tagging allow us to control protein expression levels using the wild-type nmt1 promoter, its weaker derivatives, and the urg1 promoter. These vectors are available with various antibiotic markers including kanMX6, hphMX6, natMX6 and bleMX6, and the his3(+) marker. Vectors for C-terminal FLAG epitope-tagging were designed to express FLAG-fusion proteins under the control of their native promoters at their own genomic loci, allowing us to characterize protein functions under physiological conditions. These vectors are available with kanMX6, hphMX6, nat-MX6 and bleMX6 markers. The series of vectors described in this report should prove useful for protein studies in fission yeast.

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