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RNA maps of the non-canonical RNA-binding site of Gemin5

ABSTRACT: We report the CLIP-seq data of the non-canonical RNA-binding site of Gemin5. This region consists of two domains, RBS1 and RBS2, differing in their RNA-interaction features. Interestingly, the most abundant RNA target of the RBS1 polypeptide was the Gemin5 mRNA. Biochemical and functional characterization of this target demonstrated that RBS1 domain physically interacts with a stem-loop upregulating mRNA translation by counteracting the negative effect of Gemin5 protein on global protein synthesis. We propose that the RBS1 domain of Gemin5 performs a dual role on translation control, which depends on the target RNA, allowing fine-tune the availability of Gemin5 to play its multiple roles in gene expression control

ORGANISM(S): Homo sapiens

PROVIDER: GSE102268 | GEO | 2018/08/30

REPOSITORIES: GEO

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Genome-wide analysis of snRNAs bound to Gemin5 upon protein synthesis inhibition

Project description:Here, we report the genome-wide analysis of snRNAs that are bound to Gemin5 upon protein synthesis inhibition. Upon protein synthesis inhibition, the SMN complex that has a crucial role in the biogenesis of snRNPs dissociates into its subunits, leaving Gemin5 alone. The existence of these subunits was confirmed using a proteomics approach. As Gemin5 has been previously reported to be the RNA-binding protein of the SMN complex, we obtained the sequence of all Gemin5 immunoprecipitated snRNAs. We found that snRNAs that were accumulated on Gemin5 contained extra genomic sequences at the 3'-end. We were thus able to identify novel precursors of all the snRNAs that have not been identified previously. This study also provides a detailed method for the characterization of in vivo captured RNPs using a ribo-proteomics approach. Investigation of snRNAs specifically associated with Gemin5 upon protein synthesis inhibition

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Alternative splicing events driven by altered levels of Gemin5 undergo translation

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Human HEK293 Gemin5 phosphorylation site T897 mutants LC-MSMS

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