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論文種別	原著
言語種別	英語
査読の有無	査読あり
表題	The fission yeast php2 mutant displays a lengthened chronological lifespan.
掲載誌名	正式名：Bioscience, biotechnology, and biochemistry 略　 称：Biosci Biotechnol Biochem ISSNコード：(1347-6947)0916-8451(Linking)
巻・号・頁	77(7),pp.1548-55
著者・共著者	Takuma Kazuaki, Ohtsuka Hokuto, Azuma Kenko, Murakami Hiroshi, Aiba Hirofumi
発行年月	2013
概要	The Schizosaccharomyces pombe php2(+) gene encodes a subunit of the CCAAT-binding factor complex. We found that disruption of the php2(+) gene extended the chronological lifespan of the fission yeast. Moreover, the lifespan of the Δphp2 mutant was barely extended under calorie restricted (CR) conditions. Many other phenotypes of the Δphp2 mutant resembled those of wild-type cells grown under CR conditions, suggesting that the Δphp2 mutant might undergo CR. The mutant also showed low respiratory activity concomitant with decreased expression of the cyc1(+) and rip1(+) genes, both of which are involved in mitochondrial electron transport. On the basis of a chromatin immunoprecipitation assay, we determined that Php2 binds to a DNA region upstream of cyc1(+) and rip1(+) in S. pombe. Here we discuss the possible mechanisms by which the chronological lifespan of Δphp2 mutant is extended.
DOI	10.1271/bbb.130223
PMID	23832353