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G3BP2B stress granules regulate mRNA expression under ER stress [Riboseq_Exp2]

ABSTRACT: G3BP2B stress granules regulate mRNA expression under ER stress [Riboseq_Exp2]

PROVIDER: PRJNA1071171 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR27790700.fastq.gz	Fastqsanger.gz
	SRR27790701.fastq.gz	Fastqsanger.gz
	SRR27790702.fastq.gz	Fastqsanger.gz
	SRR27790703.fastq.gz	Fastqsanger.gz
	SRR27790704.fastq.gz	Fastqsanger.gz

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G3BP2B stress granules regulate mRNA expression under ER stress [2]

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G3BP2B stress granules regulate mRNA expression under ER stress [1]

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Project description:G3BP2B stress granules regulate mRNA expression under ER stress [Riboseq_Exp3]

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G3BP2B stress granules regulate mRNA expression under ER stress [RNAseq_Exp2]

Project description:Stress granules (SGs) are macromolecular assemblies that form under cellular stress. Their function is not completely understood. Formation of these organelles is driven by the nucleation of proteins such as G3BPs. G3BPs are RNA-binding proteins that condense into SGs following translation shutoff during the integrated stress response (ISR). Three G3BP paralogs (G3BP1, G3BP2A, and G3BP2B) have been identified in vertebrates. Here, we found a molecular tool to study G3BP condensation into SGs by mutating residue V11 of G3BPs. This conserved amino acid potentiates the G3BP-Caprin-1 complex, hence promoting SG assembly. Ribosome profiling revealed that disruption of G3BP condensation impacts mRNA expression during the ISR. Moreover, we found that G3BP2B robustly condenses and promotes changes in mRNA expression under endoplasmic reticulum (ER) stress. This indicates that G3BP paralogs differentially regulate SG assembly and gene expression programs. Together, this work suggests that stress granule assembly promotes changes in gene expression to mediate stress-response during the ISR.

2024-10-07 | GSE254629 | GEO

G3BP2B stress granules regulate mRNA expression under ER stress [RNAseq_Exp3]

2024-10-07 | GSE254630 | GEO