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Exiguobacterium sibiricum 255-15

ABSTRACT: Can survive after long term exposure to cold

PROVIDER: PRJNA10649 | ENA |

REPOSITORIES: ENA

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			Action	DRS
		Other
	SRR072788.fastq.gz	Fastqsanger.gz
	SRR090726.fastq.gz	Fastqsanger.gz

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Exiguobacterium artemiae 255-15

Project description:Architecture of thermal adaptation in Exiguobacterium sibiricum strain 255-15: A genome and transcriptome approach

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Exiguobacterium artemiae 255-15 isolate:DSM 17290

Project description:Exiguobacterium sibiricum 255-15 genome sequencing

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Architecture of thermal adaptation in Exiguobacterium sibiricum strain 255-15: A genome and transcriptome approach

Project description:Several microorganisms have wide temperature growth range and versatility to tolerate large thermal fluctuations in diverse environments. To better understand thermal adaptation of psychrotrophs, Exiguobacterium sibiricum strain 255-15 was used, a psychrotrophic bacterium that grows from -5°C to 39°C. Its genome is approximately 3 Mb in size, has a GC content of 47.7% and includes 2,978 putative protein-encoding genes (CDS). The genome and transcriptome analysis along with the organism's known physiology was used to better understand its thermal adaptation. A total of about 27%, 3.2% and 5.2% of E. sibiricum strain 255-15 CDS spotted on the DNA microarray yielded differentially expressed genes in cells grown at -2.5°C, 10°C and 39°C, respectively, when compared to cells grown at 28°C. The hypothetical and unknown genes represented 10.6%, 0.89% and 2.3% of the CDS differentially expressed when grown at -2.5°C, 10°C and 39°C versus 28°C. The transcriptome analyses showed that E. sibiricum is constitutively adapted to cold temperatures since little differential gene expression was observed at growth temperatures of 10°C and 28°C, but at the extremities of its Arrhenius growth profile, namely -2.5°C and 39°C, much more differential gene expression occurred. The genes that responded were more typically associated with stress response. Keywords: stress response to cold and hot temperatures

2008-02-11 | GSE10133 | GEO

Structure of a putative NTP pyrophosphohydrolase: YP_001813558.1 from Exiguobacterium sibiricum 255-15.

Project description: Not available

| S-EPMC2954211 | biostudies-literature

Architecture of thermal adaptation in Exiguobacterium sibiricum strain 255-15: A genome and transcriptome approach

Project description:Several microorganisms have wide temperature growth range and versatility to tolerate large thermal fluctuations in diverse environments. To better understand thermal adaptation of psychrotrophs, Exiguobacterium sibiricum strain 255-15 was used, a psychrotrophic bacterium that grows from -5Â°C to 39Â°C. Its genome is approximately 3 Mb in size, has a GC content of 47.7% and includes 2,978 putative protein-encoding genes (CDS). The genome and transcriptome analysis along with the organism's known physiology was used to better understand its thermal adaptation. A total of about 27%, 3.2% and 5.2% of E. sibiricum strain 255-15 CDS spotted on the DNA microarray yielded differentially expressed genes in cells grown at -2.5Â°C, 10Â°C and 39Â°C, respectively, when compared to cells grown at 28Â°C. The hypothetical and unknown genes represented 10.6%, 0.89% and 2.3% of the CDS differentially expressed when grown at -2.5Â°C, 10Â°C and 39Â°C versus 28Â°C. The transcriptome analyses showed that E. sibiricum is constitutively adapted to cold temperatures since little differential gene expression was observed at growth temperatures of 10Â°C and 28Â°C, but at the extremities of its Arrhenius growth profile, namely -2.5Â°C and 39Â°C, much more differential gene expression occurred. The genes that responded were more typically associated with stress response. Keywords: stress response to cold and hot temperatures Six-condition experiment: -2.5Â°C vs10Â°C, -2.5Â°C vs 28Â°C, -2.5Â°C vs 39Â°C, 28Â°C vs10Â°C, 28Â°C vs 39Â°C, 10Â°C vs 39Â°C. Biological replicates: 6 replicates grown and harvested independently for each different temperature (-2.5Â°C, 10Â°C, 28Â°C and 39Â°C). One replicate per array.

2010-05-26 | E-GEOD-10133 | biostudies-arrayexpress

Exiguobacterium artemiae

Project description:Exiguobacterium artemiae overview

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The Exiguobacterium sibiricum 255-15 GtfC Enzyme Represents a Novel Glycoside Hydrolase 70 Subfamily of 4,6-α-Glucanotransferase Enzymes.

Project description: Not available

| S-EPMC4711130 | biostudies-literature

Short-term cold exposure induces persistent epigenomic memory in brown fat [ATAC-Seq]

Project description:Deficiency of the epigenome modulator histone deacetylase 3 (HDAC3) in brown adipose tissue (BAT) impairs the ability of mice to survive in near-freezing temperatures. Here, we report that short-term exposure to mild cold temperature (STEMCT: 15°C for 24 hours) averted lethal hypothermia of mice lacking HDAC3 in BAT (HDAC3 BAT KO) exposed to 4°C. STEMCT restored the induction of the thermogenic coactivator PGC-1a along with UCP1 at 22°C, which is greatly impaired in HDAC3-deficient BAT, and deletion of either UCP1 or PGC-1a prevented the protective effect of STEMCT. Remarkably, the protection of HDAC3 BAT KO mice from cold intolerance following STEMCT lasted for up to 7 days. Transcriptional activator C/EBPb was induced by short-term cold exposure in mouse and human BAT and, uniquely, remained high for 7 days following STEMCT. Furthermore, analysis of C/EBPb activity revealed increased binding following STEMCT at genes, including the enhancers/promotors of UCP1 and PGC-1a. These results reveal the existence of a cold-adaptive epigenomic memory mediated by C/EBPb that is persistent and HDAC3-independent.

2024-07-05 | GSE244382 | GEO

Short-term cold exposure induces persistent epigenomic memory in brown fat [ChIP-Seq

2024-07-05 | GSE244383 | GEO

Exiguobacterium artemiae 7-3

Project description:Exiguobacterium artemiae 7-3 Genome sequencing and assembly

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