| dc.contributor.author | Reverter Branchat, Gemma | |
| dc.contributor.author | Cabiscol Català, Elisa | |
| dc.contributor.author | Tamarit Sumalla, Jordi | |
| dc.contributor.author | Sorolla Bardají, Maria Alba | |
| dc.contributor.author | Torre Ruiz, M. A. de la | |
| dc.contributor.author | Ros Salvador, Joaquim | |
| dc.date.accessioned | 2016-05-31T07:58:41Z | |
| dc.date.issued | 2007 | |
| dc.identifier.issn | 1350-0872 | |
| dc.identifier.uri | http://hdl.handle.net/10459.1/57122 | |
| dc.description.abstract | Alcohol dehydrogenase 1 (Adh1)p catalyses the conversion of acetaldehyde to ethanol,
regenerating NAD+. In Saccharomyces cerevisiae, Adh1p is oxidatively modified during ageing
and, consequently, its activity becomes reduced. To analyse whether maintaining this activity is
advantageous for the cell, a yeast strain with an extra copy of the ADH1 gene (2 ADH1) was
constructed, and the effects on chronological and replicative ageing were analysed. The strain
showed increased survival in stationary phase (chronological ageing) due to induction of
antioxidant enzymes such as catalase and superoxide dismutases. In addition, 2 ADH1 cells
displayed an increased activity of silent information regulator 2 (Sir2)p, an NAD+-dependent
histone deacetylase, due to a higher NAD+/NADH ratio. As a consequence, a 30 % extension in
replicative life span was observed. Taken together, these results suggest that the maintenance of
enzymes that participate in NAD+/NADH balancing is important to chronological and
replicative life-span parameters. | ca_ES |
| dc.description.sponsorship | This work has been supported by grants BFU2004-00593/BMC from the Ministerio de Educación y Ciencia (Spain) and SGR2005-00677 from the Generalitat de Catalunya. G. R.-B. and M. A. S. are recipients of PhD fellowships from the Ministerio de Educación y Ciencia (Spain). | ca_ES |
| dc.language.iso | eng | ca_ES |
| dc.publisher | Microbiology Society | ca_ES |
| dc.relation | MIECI/PN2004-2007/BFU2004-00593/BMC | |
| dc.relation.isformatof | Reproducció del document publicat a https://doi.org/10.1099/mic.0.2007/009340-0 | ca_ES |
| dc.relation.ispartof | Microbiology, 2007, vol. 153, núm. 11, p. 3667-3676 | ca_ES |
| dc.rights | (c) SGM, 2007 | ca_ES |
| dc.title | Chronological and replicative life-span extension in Saccharomyces cerevisiae by increased dosage of alcohol dehydrogenase 1 | ca_ES |
| dc.type | article | ca_ES |
| dc.identifier.idgrec | 011503 | |
| dc.type.version | publishedVersion | ca_ES |
| dc.rights.accessRights | info:eu-repo/semantics/restrictedAccess | ca_ES |
| dc.identifier.doi | https://doi.org/10.1099/mic.0.2007/009340-0 | |
| dc.date.embargoEndDate | 2025-01-01 | |
