Homo sapiens
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA331206 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:hCLE/C14orf166/RTRAF, DDX1 and HSPC117 are components of cytoplasmic mRNA-transporting granules kinesin-associated in dendrites. They have also been found in cytoplasmic ribosome-containing RNA granules that transport specific mRNAs halted for translation until specific neuronal signals renders them accessible to the translation machinery. hCLE associates to DDX1, HSPC117 and FAM98B in HEK293T cells and all four proteins bind to cap analog-containing resins. Competition and elution experiments indicate that binding of hCLE complex to cap resins is independent of eIF4E; the cap-binding factor needed for translation. Purified hCLE free of its associated proteins binds cap with low affinity suggesting that its interacting proteins modulate its cap association. hCLE silencing reduces hCLE accumulation and that of its interacting proteins and decreases mRNA translation. hCLE-associated RNAs have been isolated and sequenced; RNAs involved in mRNA translation are specifically associated. The data suggest a positive role of hCLE complex modulating mRNA translation.
2019-02-18 | GSE84824 | GEO
Project description:The emergence and spread of Plasmodium falciparum human malaria parasites resistant to antimalarial drugs, including artemisinin, a first line antimalarial drug, is threatening malaria treatment and prompting fears of a resurgence of the disease. New drugs with novel mode of actions are thus urgently required. Several compounds with antimalarial activity are known to target protein translation, although few of these targets have been validated. Translation initiation in eukaryotes is known to require eukaryotic translation initiation factor 4F (eIF4F) complex, which binds to the 5′-cap structure on mature mRNA and recruits other proteins for translation of mRNA. The putative components of the eIF4F complex in P. falciparum have been identified in the genome including PfeIF4E, a 5′-cap-binding protein; PfeIF4A, a helicase protein for unwinding mRNA, and PfeIF4G, a PfeIF4E/PfeIF4A scaffold protein, which could constitute a novel antimalarial target. However, it is not known if these proteins constitute a P. falciparum eIF4F complex in vivo, nor what other proteins interact with the mRNA 5′-cap to control translation initiation in this species. Here, we investigated P. falciparum proteins that interact with the mRNA 5′-cap. Native protein extract from P. falciparum parasites was applied to m7GTP agarose beads and specific binding proteins eluted using m7GTP. LC-MS/MS based proteomic analysis of the m7GTP-eluted proteins demonstrated the presence of PfeIF4E, which was not found in control experiments with non-methylated GTP beads, verifying the native cap-binding function of PfeIF4E. PfeIF4A, PfeIF4G, and a putative polyadenylate-binding protein-interacting protein were present among m7GTP-eluted proteins but in low abundances. Interestingly, proteomics data clearly demonstrated P. falciparum enolase (Pfeno) in the m7GTP-eluted proteins.
2022-04-22 | PXD025553 | JPOST Repository
Project description:The emergence and spread of Plasmodium falciparum human malaria parasites resistant to antimalarial drugs, including artemisinin, a first line antimalarial drug, is threatening malaria treatment and prompting fears of a resurgence of the disease. New drugs with novel mode of actions are thus urgently required. Several compounds with antimalarial activity are known to target protein translation, although few of these targets have been validated. Translation initiation in eukaryotes is known to require eukaryotic translation initiation factor 4F (eIF4F) complex, which binds to the 5′-cap structure on mature mRNA and recruits other proteins for translation of mRNA. The putative components of the eIF4F complex in P. falciparum have been identified in the genome including PfeIF4E, a 5′-cap-binding protein; PfeIF4A, a helicase protein for unwinding mRNA, and PfeIF4G, a PfeIF4E/PfeIF4A scaffold protein, which could constitute a novel antimalarial target. However, it is not known if these proteins constitute a P. falciparum eIF4F complex in vivo, nor what other proteins interact with the mRNA 5′-cap to control translation initiation in this species. Here, we investigated P. falciparum proteins that interact with the mRNA 5′-cap. Native protein extract from P. falciparum parasites was applied to m7GTP agarose beads and specific binding proteins eluted using m7GTP. LC-MS/MS based proteomic analysis of the m7GTP-eluted proteins demonstrated the presence of PfeIF4E, which was not found in control experiments with non-methylated GTP beads, verifying the native cap-binding function of PfeIF4E. PfeIF4A, PfeIF4G, and a putative polyadenylate-binding protein-interacting protein were present among m7GTP-eluted proteins but in low abundances. Interestingly, proteomics data clearly demonstrated P. falciparum enolase (Pfeno) in the m7GTP-eluted proteins.
2022-04-23 | PXD025583 | JPOST Repository
Project description:Previous studies have focused on the combined glucolipoxicity that is presence of high glucose and free fatty acid levels effect on insulin gene expression, but the effect of high FFA and normal glucose level on insulin expression is unkown. Here we observed that palmitate can inhibit insulin translation. And we identified a novel insulin mrna binding protein DDX1 that is responsible for fatty acid mediated insulin translation inhibition. Palmitate treatment causes phosphorylation of DDX1 at S295 and dissociation from insulin mRNA, which decreases insulin translation.
2019-05-21 | GSE99119 | GEO
Project description:mRNA export through an additional cap-binding complex consisting of NCBP1 and NCBP3
| PRJNA291503 | ENA
Project description:m6A in 5’ untranslated regions promotes cap-independent translation of mRNA
| PRJNA296900 | ENA
Project description:Hepatitis C Virus protein NS5A was found to upregulate assembly of cap binding initiation complex eIF4F in Huh7.5 cells. NS5A also was found to associate with translation machinery. To understand consequences of NS5A mediation in host translation, we analyzed mRNA associated with polysome fractions of NS5A expressing Huh7.5 cells and compared them with the corresponding fractions from control cells. Agilent-027114 Genotypic Technology designed Custom Human Whole Genome 8x60k Microarray
2014-05-01 | E-GEOD-46273 | biostudies-arrayexpress
Project description:Hepatitis C Virus protein NS5A was found to upregulate assembly of cap binding initiation complex eIF4F in Huh7.5 cells. NS5A also was found to associate with translation machinery. To understand consequences of NS5A mediation in host translation, we analyzed mRNA associated with polysome fractions of NS5A expressing Huh7.5 cells and compared them with the corresponding fractions from control cells.
2014-05-01 | GSE46273 | GEO
Project description: Not available
| S-EPMC2531291 | biostudies-literature
Project description:RNA extracted at 240min. Samples are rRNA depleted. Expression measurement of Homo sapiens genes.
2019-07-31 | GSE114179 | GEO