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Functional characterization of C. elegans Y-box binding proteins reveals tissue-specific functions and a critical role in the formation of polysomes (RNA-Seq)

ABSTRACT: We present a basic characterization of the function of Y-box binding proteins in C. elegans. Besides playing an important role for fertility in the germline (all four CEY proteins), we found that the presence of CEY-1 and CEY-4 is essential for the assembly of larger polysomes in the soma. We therefore performed ribosome-profiling in combination with total RNA sequencing in wild type and cey-1,-4 double mutant animals to globally compare mRNA levels and their translation status.

ORGANISM(S): Caenorhabditis elegans

PROVIDER: GSE62858 | GEO | 2015/01/08

SECONDARY ACCESSION(S): PRJNA265852

REPOSITORIES: GEO

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Functional characterization of C. elegans Y-box binding proteins reveals tissue-specific functions and a critical role in the formation of polysomes (ribosome)

Project description:We present a basic characterization of the function of Y-box binding proteins in C. elegans. Besides playing an important role for fertility in the germline (all four CEY proteins), we found that the presence of CEY-1 and CEY-4 is essential for the assembly of larger polysomes in the soma. We therefore performed ribosome-profiling in combination with total RNA sequencing in wild type and cey-1,-4 double mutant animals to globally compare mRNA levels and their translation status. Ribosome-profiling analysis was peformed on wild type and cey-1,-4 mutant animals in duplicates. Four samples in total.

2015-01-08 | E-GEOD-62859 | biostudies-arrayexpress

Functional characterization of C. elegans Y-box binding proteins reveals tissue-specific functions and a critical role in the formation of polysomes (ribosome)

2015-01-08 | GSE62859 | GEO

Functional characterization of C. elegans Y-box binding proteins reveals tissue-specific functions and a critical role in the formation of polysomes (RNA-Seq)

Project description:We present a basic characterization of the function of Y-box binding proteins in C. elegans. Besides playing an important role for fertility in the germline (all four CEY proteins), we found that the presence of CEY-1 and CEY-4 is essential for the assembly of larger polysomes in the soma. We therefore performed ribosome-profiling in combination with total RNA sequencing in wild type and cey-1,-4 double mutant animals to globally compare mRNA levels and their translation status. Total RNA sequencing was peformed on RNA extacted from wild type and cey-1,-4 mutant animals in duplicates. Four samples in total.

2015-01-08 | E-GEOD-62858 | biostudies-arrayexpress

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Functional characterization of C. elegans Y-box-binding proteins reveals tissue-specific functions and a critical role in the formation of polysomes.

Project description:The cold shock domain is one of the most highly conserved motifs between bacteria and higher eukaryotes. Y-box-binding proteins represent a subfamily of cold shock domain proteins with pleiotropic functions, ranging from transcription in the nucleus to translation in the cytoplasm. These proteins have been investigated in all major model organisms except Caenorhabditis elegans. In this study, we set out to fill this gap and present a functional characterization of CEYs, the C. elegans Y-box-binding proteins. We find that, similar to other organisms, CEYs are essential for proper gametogenesis. However, we also report a novel function of these proteins in the formation of large polysomes in the soma. In the absence of the somatic CEYs, polysomes are dramatically reduced with a simultaneous increase in monosomes and disomes, which, unexpectedly, has no obvious impact on animal biology. Because transcripts that are enriched in polysomes in wild-type animals tend to be less abundant in the absence of CEYs, our findings suggest that large polysomes might depend on transcript stabilization mediated by CEY proteins.

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Polysomes

Project description:Translational profiles of wild type yeast strains were identified by microarray analysis by isolating polysomes using sucrose gradients to recover polysome-associated RNA and comparing polysome-associated RNA vs total RNA

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Functional characterization of C. elegans Y-box binding proteins reveals tissue-specific functions and a critical role in the formation of polysomes (RIP-Seq)

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Functional characterization of C. elegans Y-box binding proteins reveals tissue-specific functions and a critical role in the formation of polysomes (RIP-Seq)

Project description:We present a basic characterization of the function of Y-box binding proteins (YBPs) in C. elegans. YBPs in other organisms are known RNA-binding proteins. Our global analysis of associated mRNAs supports a role of YBPs as general mRNA binders in C.elegans. FLAG IPs were performed on transgenic animals expressing FLAG-tagged versions of either CEY-1, CEY-2, or CEY-4. MYC IPs served as controls. All IPs were performed in duplicates. 12 samples in total.

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Ribosome profiling of polysomes from mouse brains

Project description:We performed ribosome profiling of polysomes (Poly-RIBOseq) to monitor translation of RNAs associated with polysomes in brain extracts from a mouse model Keywords: ribosome profiling, translation, polysome profiling, Poly-RIBOseq

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Project description:Here we report the identification at a genome-wide scale of the mRNAs associated to polysomes in Gemin5-depleted cells relative to control cells. Among the polysomal Gemin5-enhanced mRNAs, we identified numerous transcripts belonging to two distinct families, which encode ribosomal proteins and histones.

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