ArticleThe EMBO journal2009
The ATPase and helicase activities of Prp43p are stimulated by the G-patch protein Pfa1p during yeast ribosome biogenesis.
Article in The EMBO journal, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers.
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Who cites it
61 citing papers in PubMed, 99 citations in OpenAlex.
- G-patch proteins: important regulators of pre-mRNA splicing and ribosome biogenesis.Frontiers in cell and developmental biology · 2026Review
- The G-patch protein Cwf28 interacts with the RNA helicase Cdc28 in catalytically active spliceosomes in Schizosaccharomyces pombe.PloS one · 2026Article
- An inhibitory segment within G-patch activators tunes Prp43-ATPase activity during ribosome assembly.Nature communications · 2024Article
- Unveiling the DHX15-G-patch interplay in retroviral RNA packaging.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- SURF2 is a MDM2 antagonist in triggering the nucleolar stress response.Nature communications · 2024Article
- Dysfunction of Gpl1-Gih35-Wdr83 Complex inInternational journal of molecular sciences · 2024Article
- Conformational dynamics of the RNA binding channel regulates loading and translocation of the DEAH-box helicase Prp43.Nucleic acids research · 2023Article
- The DEAD-box protein Dbp6 is an ATPase and RNA annealase interacting with the peptidyl transferase center (PTC) of the ribosome.Nucleic acids research · 2023Article
- Regulation of the DEAH/RHA helicase Prp43 by the G-patch factor Pfa1.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- Defining the Functional Interactome of Spliceosome-Associated G-Patch Protein Gpl1 in the Fission YeastInternational journal of molecular sciences · 2022Article
- Rbp95 binds to 25S rRNA helix H95 and cooperates with the Npa1 complex during early pre-60S particle maturation.Nucleic acids research · 2022Article
- Validation of the Pathogenic Effect ofInternational journal of molecular sciences · 2022Article
- Attacking a DEAD problem: The role of DEAD-box ATPases in ribosome assembly and beyond.Methods in enzymology · 2022Article
- RNA folding and functions of RNA helicases in ribosome biogenesis.RNA biology · 2022Review
- Dhx15 regulates zebrafish definitive hematopoiesis through the unfolded protein response pathway.Cancer science · 2021Article
- The G-patch activators Pfa1 and PINX1 exhibit different modes of interaction with the Prp43 RNA helicase.RNA biology · 2021Article
- Role of the 40S beak ribosomal protein eS12 in ribosome biogenesis and function inRNA biology · 2020Article
- Sgd1 is an MIF4G domain-containing cofactor of the RNA helicase Fal1 and associates with the 5' domain of the 18S rRNA sequence.RNA biology · 2020Article
- Structural basis for DEAH-helicase activation by G-patch proteins.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
- Termination of pre-mRNA splicing requires that the ATPase and RNA unwindase Prp43p acts on the catalytic snRNA U6.Genes & development · 2019Article
1 more citing papers are in PubMed but not listed here.
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Authors and funding
9 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Prp43p is a RNA helicase required for pre-mRNA splicing and for the synthesis of large and small ribosomal subunits. The molecular functions and modes of regulation of Prp43p during ribosome biogenesis remain unknown. We demonstrate that the G-patch protein Pfa1p, a component of pre-40S pre-ribosomal particles, directly interacts with Prp43p. We also show that lack of Gno1p, another G-patch protein associated with Prp43p, specifically reduces Pfa1p accumulation, whereas it increases the levels of the pre-40S pre-ribosomal particle component Ltv1p. Moreover, cells lacking Pfa1p and depleted for Ltv1p show strong 20S pre-rRNA accumulation in the cytoplasm and reduced levels of 18S rRNA. Finally, we demonstrate that Pfa1p stimulates the ATPase and helicase activities of Prp43p. Truncated Pfa1p variants unable to fully stimulate the activity of Prp43p fail to complement the 20S pre-rRNA processing defect of Deltapfa1 cells depleted for Ltv1p. Our results strongly suggest that stimulation of ATPase/helicase activities of Prp43p by Pfa1p is required for efficient 20S pre-rRNA-to-18S rRNA conversion.
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