| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Outline of Final Research Achievements |
The applicant have found that one point mutation of transcription factor Pdr1p is important for organic-solvent tolerance by analyzing organic-solvent-tolerant yeast strain KK-211 that was isolated through serial culture. In this study, the applicant identified the proteins that cause directly organic-solvent-tolerance among the upregulated cell membrane and cell wall proteins in Pdr1p mutant. In addition, it was found that the identified proteins differed depending on the features of hydrophobic or hydrophilic organic solvent. By analyzing the involvement of Pdr3p, that is a paralog of Pdr1p, in the signal transduction of organic-solvent stress, Pdr3p was demonstrated to play a role in the signal transduction. Furthermore, the applicant proposed the mechanism in which signal of organic-solvent stress was transmitted to Pdr3p via mitochondria.
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