ArticleScientific reports2019
Exon junction complex components Y14 and Mago still play a role in budding yeast.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 11 citations in OpenAlex.
- Comprehensive analysis of the role of ASC1 and APE2 introns on cellular fitness, transcription, and post-transcriptional dynamics.The FEBS journal · 2026Article
- Up-Frameshift Factors from Phytopathogenic Fungi Play a Crucial Role in Nonsense-Mediated mRNA Decay.Journal of fungi (Basel, Switzerland) · 2025Article
- Article
- Exon-junction complex association with stalled ribosomes and slow translation-independent disassembly.Nature communications · 2024Article
- Membrane-Enriched Proteomics Link Ribosome Accumulation and Proteome Reprogramming With Cold Acclimation in Barley Root Meristems.Frontiers in plant science · 2021Article
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Authors and funding
7 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Since their divergence from Pezizomycotina, the mRNA metabolism of budding yeasts have undergone regressive evolution. With the dramatic loss of introns, a number of quality control mechanisms have been simplified or lost during evolution, such as the exon junction complex (EJC). We report the identification of the core EJC components, Mago, Y14, and eIF4A3, in at least seven Saccharomycotina species, including Yarrowia lipolytica. Peripheral factors that join EJC, either to mediate its assembly (Ibp160 or Cwc22), or trigger downstream processes, are present in the same species, forming an evolutionary package. Co-immunoprecipitation studies in Y. lipolytica showed that Mago and Y14 have retained the capacity to form heterodimers, which successively bind to the peripheral factors Upf3, Aly/REF, and Pym. Phenotypes and RNA-Seq analysis of EJC mutants showed evidence of Y14 and Mago involvement in mRNA metabolism. Differences in unspliced mRNA levels suggest that Y14 binding either interferes with pre-mRNA splicing or retains mRNA in the nucleus before their export and translation. These findings indicate that yeast could be a relevant model for understanding EJC function.
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