Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Bre1-mediated Set2 protein degradation promotes chronological aging in budding yeast [ChIP-seq]

ABSTRACT: Histone modification affects life span in various organisms. The loss of Histone H3K36 methylation can shorten replicative life span in Saccharomyces cerevisiae. However, budding yeast, as a model organism for aging research, has replicative life span (RLS) and chronological life span (CLS). In this study, we showed that the loss of Histone H3K36 methylation can shorten CLS in Saccharomyces cerevisiae. We identified Ubc3/Bre1 mediates polyubiquitination of Set2 K25 and K530 at log phase and stationary phase, and Bre1 interacts with Ubc3 and Rad6 simultaneously. BRE1 knockout can stabilize Set2 protein to maintain H3K36me3 and regulate the transcription of aging related genes, such as DSE1/DSE2/SUN4/EGT2/SCW11. We also proved that Gcn5-mediated Set2 acetylation regulates Set2 protein stability and chronological aging. Altogether, our study showed that knockout of BRE1 and GCN5 regulate Set2 protein level by mediating the polyubiquitination of Set2 to influence the level of H3K36me3 and the transcription level of aging related genes enriched by H3K36me3, thereby extending the chronological life span.

ORGANISM(S): Saccharomyces cerevisiae

PROVIDER: GSE221024 | GEO | 2023/09/29

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Similar Datasets

Bre1-mediated Set2 protein degradation promotes chronological aging in budding yeast [RNA-seq]

Project description:Histone modification affects life span in various organisms. The loss of Histone H3K36 methylation can shorten replicative life span in Saccharomyces cerevisiae. However, budding yeast, as a model organism for aging research, has replicative life span (RLS) and chronological life span (CLS). In this study, we showed that the loss of Histone H3K36 methylation can shorten CLS in Saccharomyces cerevisiae. We identified Ubc3/Bre1 mediates polyubiquitination of Set2 K25 and K530 at log phase and stationary phase, and Bre1 interacts with Ubc3 and Rad6 simultaneously. BRE1 knockout can stabilize Set2 protein to maintain H3K36me3 and regulate the transcription of aging related genes, such as DSE1/DSE2/SUN4/EGT2/SCW11. We also proved that Gcn5-mediated Set2 acetylation regulates Set2 protein stability and chronological aging. Altogether, our study showed that knockout of BRE1 and GCN5 regulate Set2 protein level by mediating the polyubiquitination of Set2 to influence the level of H3K36me3 and the transcription level of aging related genes enriched by H3K36me3, thereby extending the chronological life span.

2023-09-29 | GSE221025 | GEO

GRX deleted Saccharomyces Cerevisiae LC-MSMS

Project description:In this study, we used Saccharomyces cerevisiae to investigate the effects of GRX deletion on yeast chronological life span (CLS). Deletion of Grx1 or Grx2 shortened yeast CLS. Quantitative proteomics revealed that GRX deletion increased cellular ROS levels to activate Ras/PKA signal pathway. Our results provided new insights into mechanisms underlying aging process.

2022-02-25 | PXD009699 | Pride

Wine yeast EC1118 and CSM comparative transcriptomics during synthetic grape juice fermentation MS300 at day 6

2011-10-26 | GSE33068 | GEO

Significant and Systematic Expression Differentiation in Long-Lived Yeast Strains

Project description:The three yeast mutants sch9Δ, ras2Δ, tor1Δ show extended chronological life span up to three folds. This study aims to dissect the mechanisms that lead to the yeast life span extension. Keywords: Expression comparison between wild type and long-lived yeast mutant strain

2008-11-01 | GSE13420 | GEO

Spontaneous mutations in CYC8 and MIG1 suppress the short chronological lifespan of budding yeast lacking SNF1/AMPK

Project description:Chronologically aging yeast cells are prone to adaptive regrowth, whereby mutants with a survival advantage spontaneously appear and re-enter the cell cycle in stationary phase cultures. Adaptive regrowth is especially noticeable with short-lived strains, including those defective for SNF1, the homolog of mammalian AMP-activated protein kinase (AMPK). SNF1 becomes active in response to multiple environmental stresses that occur in chronologically aging cells, including glucose depletion and oxidative stress. SNF1 is also required for the extension of chronological lifespan (CLS) by caloric restriction (CR) as defined as limiting glucose at the time of culture inoculation. To identify specific downstream SNF1 targets responsible for CLS extension during CR, we screened for adaptive regrowth mutants that restore chronological longevity to a short-lived snf1∆ parental strain. Whole genome sequencing of the adapted mutants revealed missense mutations in TPR motifs 9 and 10 of the transcriptional co-repressor Cyc8 that specifically mediate repression through the transcriptional repressor Mig1. Another mutation occurred in MIG1 itself, thus implicating the activation of Mig1-repressed genes as a key function of SNF1 in maintaining CLS. Consistent with this conclusion, the cyc8 TPR mutations partially restored growth on alternative carbon sources and significantly extended CLS compared to the snf1∆ parent. Furthermore, cyc8 TPR mutations reactivated multiple Mig1-repressed genes, including the transcription factor gene CAT8, which is responsible for activating genes of the glyoxylate and gluconeogenesis pathways. Deleting CAT8 completely blocked CLS extension by the cyc8 TPR mutations on CLS, identifying these pathways as key Snf1-regulated CLS determinants.

2018-03-28 | GSE110409 | GEO

Wine yeast EC1118 and CSM comparative transcriptomics during synthetic grape juice fermentation MS300 at day 6

Project description:CSM is a commercial wine yeast with a long chronological life span, while commercial strain EC1118 displays a short life span in laboratory synthetic complete medium SC. Our aim is compare their expression profile on a high sugar fermentation From a preculture of two days in YPD, MS300 was innoculated at 10exp6 cells/mL in filled-in 50 mL conical centrifuge tubes and they were cultivated at 24ºC with mild shaking for 6 days.

2011-10-25 | E-GEOD-33068 | biostudies-arrayexpress

Transcriptomic analysis of a Saccharomyces cerevisiae mutant with extended chronological life span

Project description:A Saccharomyces cerevisiae mutant with extended chronological life span was obtained by using an evolutionary engineering strategy, based on successive batch cultivation under gradually enhanced caloric restriction. The mutant strain SRM11 was selected which had about 50% longer life span than the reference strain. Whole-genome transcriptomic analysis of SRM11 with respect to the reference strain was performed to identify differences in gene expression levels between the two strains.

2017-05-19 | GSE99041 | GEO

Emergence of Dynamic Neuro-Immune Profile During Mid-life Aging in the Female Brain: Implications for Alzheimer’s Disease Risk [P3]

Project description:Aging and endocrine transition states can significantly impact inflammation across organ systems. Neuroinflammation is a well-documented feature in Alzheimer’s disease (AD). Herein, we investigated neuro-inflammation that emerges during mid-life aging, chronological and endocrinological, in the female brain as an early initiating mechanism driving AD risk later in life. Analyses were conducted in a translational rodent model of mid-life chronological and endocrinological aging followed by validation in transcriptomic profiles from women versus age-matched men. In the translational model, the neuroinflammatory profile of mid-life aging in females was endocrine and chronological state specific, dynamic, anatomically distributed and persistent. Microarray dataset analyses of aging human hippocampus indicated a sex difference in neuroinflammatory profile in which women exhibited a profile comparable to the pattern discovered in our translational rodent model, whereas age-matched men exhibited a profile consistent with low neuro-immune activation. Translationally, these findings have implications for therapeutic interventions during mid-life to decrease late-onset AD risk.

2020-12-08 | GSE161142 | GEO

Emergence of Dynamic Neuro-Immune Profile During Mid-life Aging in the Female Brain: Implications for Alzheimer’s Disease Risk [Hot flash]

2020-12-08 | GSE161233 | GEO

Creatine increases health and life span in mice

Project description:Here we show that oral creatine (Cr) supplementation leads to increased life span in mice. Treated mice showed improved neurobehavioral performance, decreased accumulation of the aging pigment lipofuscin and upregulation of “anti-aging” genes in brain. As Cr is virtually free of adverse effects, it may be a promising food supplement for healthy aging in man. Keywords: creatine, life span, neurobehavioural performance, microarray, oxidative stress, aging

2007-06-13 | GSE5140 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data