Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

Gene expression profile in yeast under physiological changes of stress adaptation and stress recovery

ABSTRACT: The data provide information expression profile in yeast for 5 different physioloigcal conditions during stress adpatation and stress recovery (normal growth, during stress adaptation, after stress adaptation, under stress recovery, after stress recovery) in yeast. The purpose of the study is to understand how histone acetyltransferase HATs (Gcn5) apply it is function in gene regulation by changing global or local histone acetylation level under different physiological conditions. Gene expression levels measured for at 5 different time points of physiological changes under stress adaptation and stress recovery.

ORGANISM(S): Saccharomyces cerevisiae

SUBMITTER: Anthony Wright

PROVIDER: E-GEOD-36599 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Distinct roles of the Gcn5 histone acetyltransferase revealed during transient stress-induced reprogramming of the genome.

Xue-Franzén Yongtao Y Henriksson Johan J Bürglin Thomas R TR Wright Anthony P H AP

BMC genomics 20130716

<h4>Background</h4>Gcn5 belongs to a family of histone acetyltransferases (HATs) that regulate protein function by acetylation. Gcn5 plays several different roles in gene transcription throughout the genome but their characterisation by classical mutation approaches is hampered by the high degree of apparent functional redundancy between HAT proteins.<h4>Results</h4>Here we utilise the reduced redundancy associated with the transiently high levels of genomic reprogramming during stress adaptatio ...[more]

PMID: 23865462

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Project description:By using a 44k chicken Agilent microarray, we systematically analyzed the chicken hypothalamus transcriptome response to thermal stress. Twelve hypothalamus samples were chosen from three groups (four samples per group) to be used in chicken genome microarray to examine differential gene expression.We compared the expression profiles between each pairs of the three groups using the microarray data. Totally, 2474 genes were found to be differentially expressed in the three comparisons with pM-oM-<M-^\0.05 and fold change (FC) higher than 1.5 and the genes were mainly involved in self-regulation and compensation required to maintain homeostasis, including heat shock protein family, enzyme and the hormone, neurotransmitter, cell-cell signaling, metabolism and cytokines. The transcripts of heat shock protein including Hsp 40 and Hsp 90 were significantly changed respond to thermal stress and genes involved in regulation of cell morphogenesis were significantly upregulated in heat stressed group with comparison to control and temperature recovery group. Additionally, the down-regulated genes in both heat stress and temperature recovery groups compared to control group were enriched in muscle organ development, striated muscle tissue development, cardiac muscle tissue development and muscle tissue development, which indicates that muscle development was inhibited during and in short-term after heat treatment. Most of genes dysregulated in heat stress group were found to be recovered in temperature recovery group, which confirmed their roles they could play in coping with heat stress. The present study provides a broader understanding of molecular mechanisms underlying the stress response in chicken and discovery of novel genes that are regulated in a thermal stress specific manner. Hypothalamus samples were collected from non-heat treated group (reared at 25C, used as control), 24h 34C treated group (heat stress treated group) and temperature recovery group (25C for 24h followed heat stress).

Dataset Information

Gene expression profile in yeast under physiological changes of stress adaptation and stress recovery

Publications

Distinct roles of the Gcn5 histone acetyltransferase revealed during transient stress-induced reprogramming of the genome.

Similar Datasets

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