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The fission yeast php2 mutant displays a lengthened chronological lifespan.
Biosci Biotechnol Biochem. 2013; 77(7):1548-55.BB

Abstract

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.

Authors+Show Affiliations

Laboratory of Molecular Microbiology, School of Agriculture, Nagoya University, Nagoya 464-8601, Japan.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

23832353

Citation

Takuma, Kazuaki, et al. "The Fission Yeast Php2 Mutant Displays a Lengthened Chronological Lifespan." Bioscience, Biotechnology, and Biochemistry, vol. 77, no. 7, 2013, pp. 1548-55.
Takuma K, Ohtsuka H, Azuma K, et al. The fission yeast php2 mutant displays a lengthened chronological lifespan. Biosci Biotechnol Biochem. 2013;77(7):1548-55.
Takuma, K., Ohtsuka, H., Azuma, K., Murakami, H., & Aiba, H. (2013). The fission yeast php2 mutant displays a lengthened chronological lifespan. Bioscience, Biotechnology, and Biochemistry, 77(7), 1548-55.
Takuma K, et al. The Fission Yeast Php2 Mutant Displays a Lengthened Chronological Lifespan. Biosci Biotechnol Biochem. 2013;77(7):1548-55. PubMed PMID: 23832353.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The fission yeast php2 mutant displays a lengthened chronological lifespan. AU - Takuma,Kazuaki, AU - Ohtsuka,Hokuto, AU - Azuma,Kenko, AU - Murakami,Hiroshi, AU - Aiba,Hirofumi, Y1 - 2013/07/07/ PY - 2013/7/9/entrez PY - 2013/7/9/pubmed PY - 2014/2/19/medline SP - 1548 EP - 55 JF - Bioscience, biotechnology, and biochemistry JO - Biosci Biotechnol Biochem VL - 77 IS - 7 N2 - 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. SN - 1347-6947 UR - https://www.unboundmedicine.com/medline/citation/23832353/The_fission_yeast_php2_mutant_displays_a_lengthened_chronological_lifespan_ L2 - https://joi.jlc.jst.go.jp/DN/JST.JSTAGE/bbb/130223?lang=en&from=PubMed DB - PRIME DP - Unbound Medicine ER -