A specialized mechanism of translation mediated by FXR1a-associated microRNP in cellular quiescence
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ABSTRACT: MicroRNAs predominantly decrease gene expression; however, specific mRNAs are translationally upregulated in quiescent (G0) mammalian cells and immature Xenopus laevis oocytes by an FXR1a-associated microRNP (microRNA-protein complex) that lacks the microRNP repressor, GW182. We conducted global proteomic analysis in THP1 cells depleted of FXR1 to globally identify activation targets of more than one microRNA, since FXR1 is required for microRNAmediated translation activation in THP1 G0 cells by FXR1-microRNPs.Since proteomic data changes could also be due to changes at the RNA level, total RNA levels in FXR1knockdown compared to control shRNA cells were examined in parallel by microarray analysis using Affymetrix Human GeneChip 2.0 ST. We used microarrays to get total RNA levels from FXR1 knockdown and control shRNA cells, to normalize the mass spectrometry data in order to provide normalized protein data or translation efficiency.
ORGANISM(S): Homo sapiens
PROVIDER: GSE77512 | GEO | 2016/02/03
SECONDARY ACCESSION(S): PRJNA310658
REPOSITORIES: GEO
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