Unknown

Dataset Information

0

Acetyl-coenzyme A synthetase 2 is a nuclear protein required for replicative longevity in Saccharomyces cerevisiae.


ABSTRACT: Acs2p is one of two acetyl-coenzyme A synthetases in Saccharomyces cerevisiae. We have prepared and characterized a monoclonal antibody specific for Acs2p and find that Acs2p is localized primarily to the nucleus, including the nucleolus, with a minor amount in the cytosol. We find that Acs2p is required for replicative longevity: an acs2 Delta strain has a reduced replicative life span compared to wild-type and acs1 Delta strains. Furthermore, replicatively aged acs2 Delta cells contain elevated levels of extrachromosomal rDNA circles, and silencing at the rDNA locus is impaired in an acs2 Delta strain. These findings indicate that Acs2p-mediated synthesis of acetyl-CoA in the nucleus functions to promote rDNA silencing and replicative longevity in yeast.

SUBMITTER: Falcon AA 

PROVIDER: S-EPMC3618671 | biostudies-literature | 2010 Jan

REPOSITORIES: biostudies-literature

altmetric image

Publications

Acetyl-coenzyme A synthetase 2 is a nuclear protein required for replicative longevity in Saccharomyces cerevisiae.

Falcón Alaric A AA   Chen Shaoping S   Wood Michael S MS   Aris John P JP  

Molecular and cellular biochemistry 20090719 1-2


Acs2p is one of two acetyl-coenzyme A synthetases in Saccharomyces cerevisiae. We have prepared and characterized a monoclonal antibody specific for Acs2p and find that Acs2p is localized primarily to the nucleus, including the nucleolus, with a minor amount in the cytosol. We find that Acs2p is required for replicative longevity: an acs2 Delta strain has a reduced replicative life span compared to wild-type and acs1 Delta strains. Furthermore, replicatively aged acs2 Delta cells contain elevate  ...[more]

Similar Datasets

| S-EPMC3047483 | biostudies-literature
| S-EPMC3392685 | biostudies-literature
| S-EPMC4783355 | biostudies-literature
| S-EPMC101899 | biostudies-literature
| S-EPMC5940150 | biostudies-literature
| S-EPMC6221361 | biostudies-literature
| S-EPMC4212835 | biostudies-literature
| S-EPMC3532209 | biostudies-literature
| S-EPMC3169524 | biostudies-literature
| S-EPMC5311497 | biostudies-literature