Journal of Microbiology and Biotechnology

The Korean Society for Microbiology and Biotechnology (한국미생물·생명공학회)
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Screening of Yeast Diauxic Promoters for Production of Foreign Proteins

  • Kim Jin-Ju (Department of Microbiology and Research Institute of Life Sciences, GyeongSang National University) ;
  • Kim Sang-Woo (Department of Microbiology and Research Institute of Life Sciences, GyeongSang National University) ;
  • Jeon Che-Ok (Environmental Biotechnology National Core Research Center, GyeongSang National University) ;
  • Yun Ji-Yun (Department of Microbiology and Research Institute of Life Sciences, GyeongSang National University) ;
  • Lee Hyun-Sook (Department of Microbiology and Research Institute of Life Sciences, GyeongSang National University) ;
  • Ro Hyeon-Su (Department of Microbiology and Research Institute of Life Sciences, GyeongSang National University)
  • Published : 2006.09.01
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Abstract

This study explored yeast diauxic promoters using a green fluorescent protein (GFP) reporter to screen growth phase-controlled promoters applicable for foreign protein production. Twenty-five diauxic promoters were inserted into a yeast 2-micron vector in front of the reporter GFP gene. The expressed GFP signal intensity measurements showed that 23 out of the 25 promoters produced a significant fluorescent signal when the cells were in the diauxic growth phase. Among the two strongest promoters pYDL204W and pYLR258W, the former remained constantly active after its activation at the diauxic shift, whereas the latter was only transiently activated right after the deprivation of the medium glucose.

Keywords

References

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