ArticleRNA (New York, N.Y.)2006
The network of protein-protein interactions within the human U4/U6.U5 tri-snRNP.
Article in RNA (New York, N.Y.), 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 107 papers.
What it found
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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.
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Who cites it
107 citing papers in PubMed, 191 citations in OpenAlex.
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- Retinitis pigmentosa-linked mutations impair the snRNA unwinding activity of SNRNP200 and reduce pre-mRNA binding of PRPF8.Cellular and molecular life sciences : CMLS · 2025Article
- Dynamics and evolutionary conservation of B complex protein recruitment during spliceosome activation.Nucleic acids research · 2025Article
- Addressing the tissue specificity of U5 snRNP spliceosomopathies.Frontiers in cell and developmental biology · 2025Article
- Dynamics and Evolutionary Conservation of B Complex Protein Recruitment During Spliceosome Activation.bioRxiv : the preprint server for biology · 2024Article
- Structural basis of human U5 snRNP late biogenesis and recycling.Nature structural & molecular biology · 2024Article
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- MDF is a conserved splicing factor and modulates cell division and stress response inLife science alliance · 2023Article
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- Reovirus μ2 protein modulates host cell alternative splicing by reducing protein levels of U5 snRNP core components.Nucleic acids research · 2022Article
- The Deubiquitinase USP39 Promotes Esophageal Squamous Cell Carcinoma Malignancy as a Splicing Factor.Genes · 2022Article
- Mutations in the Spliceosome ComponentNeuroscience insights · 2022Article
- DHX15-independent roles for TFIP11 in U6 snRNA modification, U4/U6.U5 tri-snRNP assembly and pre-mRNA splicing fidelity.Nature communications · 2021Article
- Determinants of Disease Penetrance inGenes · 2021Article
47 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The human 25S U4/U6.U5 tri-snRNP is a major building block of the U2-type spliceosome and contains, in addition to the U4, U6, and U5 snRNAs, at least 30 distinct proteins. To learn more about the molecular architecture of the tri-snRNP, we have investigated interactions between tri-snRNP proteins using the yeast two-hybrid assay and in vitro binding assays, and, in addition, have identified distinct protein domains that are critical for the connectivity of this protein network in the human tri-snRNP. These studies revealed multiple interactions between distinct domains of the U5 proteins hPrp8, hBrr2 (a DExH/D-box helicase), and hSnu114 (a putative GTPase), which are key players in the catalytic activation of the spliceosome, during which the U4/U6 base-pairing interaction is disrupted and U4 is released from the spliceosome. Both the U5-specific, TPR/HAT-repeat-containing hPrp6 protein and the tri-snRNP-specific hSnu66 protein interact with several U5- and U4/U6-associated proteins, including hBrr2 and hPrp3, which contacts the U6 snRNA. Thus, both proteins are located at the interface between U5 and U4/U6 in the tri-snRNP complex, and likely play an important role in transmitting the activity of hBrr2 and hSnu114 in the U5 snRNP to the U4/U6 duplex during spliceosome activation. A more detailed analysis of these protein interactions revealed that different HAT repeats mediate interactions with specific hPrp6 partners. Taken together, data presented here provide a detailed picture of the network of protein interactions within the human tri-snRNP.
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