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RNAseq of ribosomal footprints

ABSTRACT: Cancer genes can affect ribosomal RNA processing and this can underlie their essentiality to cells, making them cell-essential in the same way as ribosomal genes themselves. We want to confirm this, in order to understand the results of our CRISPR drop-out screens.NOTE FROM BESPOKE TEAM: Run a single read 1 (forward read) of 30 bases, then an index 1 read as normal. This would fit a 50cycle kit

INSTRUMENT(S): Illumina MiSeq

ORGANISM(S): Homo sapiens

SUBMITTER:

PROVIDER: E-ERAD-444 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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RNAseq of ribosomal footprints

Project description:Cancer genes can affect ribosomal RNA processing and this can underlie their essentiality to cells, making them cell-essential in the same way as ribosomal genes themselves. We want to confirm this, in order to understand the results of our CRISPR drop-out screens. NOTE FROM BESPOKE TEAM: Run a single read 1 (forward read) of 30 bases, then an index 1 read as normal. This would fit a 50cycle kit

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Project description:Duplicated genes escape gene loss by conferring a dosage benefit or evolving diverged functions. The yeast Saccharomyces cerevisiae contains many duplicated genes encoding ribosomal proteins. Prior studies have suggested that these duplicated proteins are functionally redundant and affect cellular processes in proportion to their expression. In contrast, through studies of ASH1 mRNA in yeast, we demonstrate paralog-specific requirements for the translation of localized mRNAs. Intriguingly, these paralog-specific effects are limited to a distinct subset of duplicated ribosomal proteins. Moreover, transcriptional and phenotypic profiling of cells lacking specific ribosomal proteins reveals differences between the functional roles of ribosomal protein paralogs that extend beyond effects on mRNA localization. Finally, we show that ribosomal protein paralogs exhibit differential requirements for assembly and localization. Together, our data indicate complex specialization of ribosomal proteins for specific cellular processes, and support the existence of a ribosomal code. Experiment Overall Design: We used Affymetrix arrays to analyze the transcriptional profiles of cells lacking certain duplicated ribosomal protein genes in order to determine if paralogous ribosomal proteins have differing cellular effects and roles. Experiment Overall Design: Two biological replicates were performed for each strain. Each ribosomal protein deletion was then compared to the isogenic wild-type strain.

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