ArticleProceedings of the National Academy of Sciences of the United States of America2003
ATP requirement for Prp5p function is determined by Cus2p and the structure of U2 small nuclear RNA.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
57 citing papers in PubMed, 97 citations in OpenAlex.
- New mechanistic insights into prespliceosome formation-roles of DEAD-box proteins Prp5 and Sub2.RNA (New York, N.Y.) · 2025Article
- Split-APEX implicates splicing factor SRSF1 and splicing helicases in ribosomal biogenesis.Frontiers in molecular biosciences · 2025Article
- Article
- Control of 3' splice site selection by the yeast splicing factor Fyv6.bioRxiv : the preprint server for biology · 2024Article
- Transcriptomic Analysis Provides New Insights into the Tolerance Mechanisms of Green MacroalgaeBiology · 2024Article
- Structural insights into branch site proofreading by human spliceosome.Nature structural & molecular biology · 2024Article
- Broad variation in response of individual introns to splicing inhibitors in a humanized yeast strain.RNA (New York, N.Y.) · 2024Article
- Broad variation in response of individual introns to splicing inhibitors in a humanized yeast strain.bioRxiv : the preprint server for biology · 2023Article
- Mechanisms of the RNA helicases DDX42 and DDX46 in human U2 snRNP assembly.Nature communications · 2023Article
- Structural basis of branch site recognition by the human spliceosome.Science (New York, N.Y.) · 2022Article
- Attacking a DEAD problem: The role of DEAD-box ATPases in ribosome assembly and beyond.Methods in enzymology · 2022Article
- Evidence for complex dynamics during U2 snRNP selection of the intron branchpoint.Nucleic acids research · 2021Article
- Article
- Molecular architecture of the human 17S U2 snRNP.Nature · 2020Article
- Prp5-Spt8/Spt3 interaction mediates a reciprocal coupling between splicing and transcription.Nucleic acids research · 2020Article
- Cooperative Analysis of Structural Dynamics in RNA-Protein Complexes by Single-Molecule Förster Resonance Energy Transfer Spectroscopy.Molecules (Basel, Switzerland) · 2020Review
- Dynamics of the DEAD-box ATPase Prp5 RecA-like domains provide a conformational switch during spliceosome assembly.Nucleic acids research · 2019Article
- Structural and functional modularity of the U2 snRNP in pre-mRNA splicing.Critical reviews in biochemistry and molecular biology · 2019Review
- Cus2 enforces the first ATP-dependent step of splicing by binding to yeast SF3b1 through a UHM-ULM interaction.RNA (New York, N.Y.) · 2019Article
- Early splicing functions of fission yeast Prp16 and its unexpected requirement for gene Silencing is governed by intronic features.RNA biology · 2019Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 2 institutions in 1 country.
Funding
Abstract
Stable addition of U2 small nuclear ribonucleoprotein (snRNP) to form the prespliceosome is the first ATP-dependent step in splicing, and it requires the DEXD/H box ATPase Prp5p. However, prespliceosome formation occurs without ATP in extracts lacking the U2 snRNP protein Cus2p. Here we show that Prp5p is required for the ATP-independent prespliceosome assembly that occurs in the absence of Cus2p. Addition of recombinant Cus2p can restore the ATP dependence of prespliceosome assembly, but only if it is added before Prp5p. Prp5p with an altered ATP-binding domain (Prp5-GNTp) can support growth in vivo, but only in a cus2 deletion strain, mirroring the in vitro results. Other Prp5 ATP-binding domain substitutions are lethal, even in the cus2 deletion strain, but can be suppressed by U2 small nuclear RNA mutations that hyperstabilize U2 stem IIa. We infer that the presence of Cus2p and stem IIa-destabilized forms of U2 small nuclear RNA places high demands on the ATP-driven function of Prp5p. Because Prp5p is not dispensable in vitro even in the absence of ATP, we propose that the core Prp5p function in bringing U2 to the branchpoint is not directly ATP-dependent. The positive role of Cus2p in rescuing mutant U2 can be reconciled with its antagonistic effect on Prp5 function in a model whereby Cus2p first helps Prp5p to activate the U2 snRNP for prespliceosome formation but then is displaced by Prp5p before or during the stabilization of U2 at the branchpoint.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.