2013 Fiscal Year Final Research Report
Characterization of large-scale genome-reduced fission yeast strains
| Project/Area Number |
23651206
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Applied genomics
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| Research Institution | Kyushu University |
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Principal Investigator |
TAKEGAWA Kaoru 九州大学, (連合)農学研究科(研究院), 教授 (50197282)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 分裂酵母 / 遺伝子削除 / 物質生産 / 代謝機能 |
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| Research Abstract |
The gene number of Schizosaccharomyces pombe belong to smallest class in free-living eukaryotes. We further reduced S. pombe gene number by genome reduction to examine a minimal gene set required for growth in laboratory condition. The genome-reduced strain has four deletion regions. As results of the genome reductions, 224 genes of total approximately 5100 genes were reduced. The quadruple-deletion strain that has total deletion size of 657.3 kb, showed some decreasing effects of the uptake of glucose and a part of amino acids in comparison with the parental strain. In the quadruple-deletion strain, cellular ATP concentration was increased 2.7-fold and the production level of an enhanced green fluorescent protein (EGFP) was improved to 1.7-fold.
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