ArticleNucleic acids research2015
NUFIP and the HSP90/R2TP chaperone bind the SMN complex and facilitate assembly of U4-specific proteins.
Article in Nucleic acids research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.
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Who cites it
43 citing papers in PubMed, 59 citations in OpenAlex.
- Insights into the function and structure of the R2TP (RUVBL1-RUVBL2-RPAP3-PIH1D1) chaperone complex.Cell stress & chaperones · 2026Review
- RPAP3: Structural evolution, chaperone networks, and disease implications of a transcriptional Co-chaperone.The Journal of biological chemistry · 2026Review
- An integrative structural biology approach reveals the dynamic organization of the R2SP quaternary chaperone complex.Nature communications · 2026Article
- Co-translational determination of quaternary structures in chaperone factories.Nature communications · 2026Article
- Nuclear ribonucleoprotein condensates as platforms for gene expression regulation.Genes & genomics · 2025Review
- A guide to the biogenesis and functions of endogenous small non-coding RNAs in animals.Nature reviews. Molecular cell biology · 2025Review
- Understanding the Role of the SMN Complex Component GEMIN5 and Its Functional Relationship with Demethylase KDM6B in the Flunarizine-Mediated Neuroprotection of Motor Neuron Disease Spinal Muscular Atrophy.International journal of molecular sciences · 2024Article
- DIP-MS: ultra-deep interaction proteomics for the deconvolution of protein complexes.Nature methods · 2024Article
- Coilin and Cajal bodies.Nucleus (Austin, Tex.) · 2023Review
- Cajal bodies: Evolutionarily conserved nuclear biomolecular condensates with properties unique to plants.The Plant cell · 2023Review
- Proteomic analyses reveal new features of the box H/ACA RNP biogenesis.Nucleic acids research · 2023Article
- Maturation of small nucleolar RNAs: from production to function.RNA biology · 2023Review
- Structural and functional investigation of the human snRNP assembly factor AAR2 in complex with the RNase H-like domain of PRPF8.Acta crystallographica. Section D, Structural biology · 2022Article
- The transcriptional coactivator RUVBL2 regulates Pol II clustering with diverse transcription factors.Nature communications · 2022Article
- The Role of Hsp90-R2TP in Macromolecular Complex Assembly and Stabilization.Biomolecules · 2022Review
- The intrinsically disordered TSSC4 protein acts as a helicase inhibitor, placeholder and multi-interaction coordinator during snRNP assembly and recycling.Nucleic acids research · 2022Article
- The interaction between RPAP3 and TRBP reveals a possible involvement of the HSP90/R2TP chaperone complex in the regulation of miRNA activity.Nucleic acids research · 2022Article
- CryoEM of RUVBL1-RUVBL2-ZNHIT2, a complex that interacts with pre-mRNA-processing-splicing factor 8.Nucleic acids research · 2022Article
- An assembly of nuclear bodies associates with the active VSG expression site in African trypanosomes.Nature communications · 2022Article
- Pedal to the Metal: Nuclear Splicing Bodies Turbo-Charge VSG mRNA Production in African Trypanosomes.Frontiers in cell and developmental biology · 2022Review
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Authors and funding
9 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The Sm proteins are loaded on snRNAs by the SMN complex, but how snRNP-specific proteins are assembled remains poorly characterized. U4 snRNP and box C/D snoRNPs have structural similarities. They both contain the 15.5K and proteins with NOP domains (PRP31 for U4, NOP56/58 for snoRNPs). Biogenesis of box C/D snoRNPs involves NUFIP and the HSP90/R2TP chaperone system and here, we explore the function of this machinery in U4 RNP assembly. We show that yeast Prp31 interacts with several components of the NUFIP/R2TP machinery, and that these interactions are separable from each other. In human cells, PRP31 mutants that fail to stably associate with U4 snRNA still interact with components of the NUFIP/R2TP system, indicating that these interactions precede binding of PRP31 to U4 snRNA. Knock-down of NUFIP leads to mislocalization of PRP31 and decreased association with U4. Moreover, NUFIP is associated with the SMN complex through direct interactions with Gemin3 and Gemin6. Altogether, our data suggest a model in which the NUFIP/R2TP system is connected with the SMN complex and facilitates assembly of U4 snRNP-specific proteins.
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