A Novel Type of Life Cycle "Delayed Homothallism" in Saccharomyces cerevisiae wy2 Showed Slow Interconversion of Mating-type
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概要
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Saccharomyces cerevisiae wy2 segregated to 2 mater and 2 non-mater in relation to mating ability. The non-mater segregants behaved as the normal type of homothallic life cycle. On the other hand, the mater segregants gradually formed spores during successive subcultures, indicating that slow interconversion of mating-type happened to occur during subcultures. We termed this novel type of life cycle "delayed homothallism". The results of complementation tests with standard ho strains and introduction of a wild type HO gene showed that delayed homothallism was caused by a defective HO gene. The amino acid sequence deduced from the nucleotide sequence of the wy2 HO gene differed from the wild type HO gene in three amino acid residues. In the carboxy terminus of HO protein, there are three repeats of cysteine and histidine that are postulated to play a role in binding of HO protein to DNA. However, wy2 HO protein lacked one such repeat at residues Cys470-His475, where His was replaced by Leu.
- 社団法人日本農芸化学会の論文
- 1994-12-23
著者
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Hayashida Shinsaku
Department of Agricultural Chemistry, Faculty of Agriculture, Kyushu University
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Hayashida Shinsaku
Department Of Agricultural Chemistry Kyushu University:corresponding Author
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Hayashida Shinsaku
Department Of Agricultural Chemistry
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Tani Yoshinobu
Fukutokucho Co., Ltd.
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Kurokui Takamasa
Department of Agricultural Chemistry, Kyushu University
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Masaki Chihiro
Department of Agricultural Chemistry, Kyushu University
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Hayakawa Manami
Department of Agricultural Chemistry, Kyushu University
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Ekino Keisuke
Department of Agricultural Chemistry, Kyushu University
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Tomohiro Yukio
Fukutokucho Co., Ltd.
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Miyata Akira
Fukutokucho Co., Ltd.
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Furukawa Kensuke
Department of Agricultural Chemistry, Kyushu University
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Ekino K
Kyushu Univ. Fukuoka Jpn
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Ekino Keisuke
Department Of Bioscience And Biotechnology Faculty Of Agriculture Kyushu University
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Ekino Keisuke
Department Of Agricultural Chemistry Kyushu University
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Tani Yoshinobu
Fukutokucho Co. Ltd.
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Masaki Chihiro
Department Of Agricultural Chemistry Kyushu University
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Tomohiro Yukio
Fukutokucho Co. Ltd.
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Hayakawa Manami
Department Of Agricultural Chemistry Kyushu University
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Furukawa Kensuke
Department Of Agricultural Chemistry Faculty Of Agriculture Kyushu University
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Kurokui Takamasa
Department Of Agricultural Chemistry Kyushu University
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Hayashida S
Laboratory Of Applied Microbiology Department Of Agricultural Chemistry Kyushu University
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Miyata A
Niaes
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Furukawa Kensuke
Department Of Agricultural Chemistry Kyushu University
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