How p68 RNA Helicase Affects H-Ras Splicing
Author Information
Author(s): Maria Guil Camats, Mariette Kokolo, Montse Bach-Elias, Juan Valcarcel
Primary Institution: Unidad de Splicing, Instituto de Investigaciones Biomédicas de Barcelona-Consejo Superior de Investigaciones CientÃficas, Barcelona, Spain
Hypothesis
p68 RNA helicase alters the activity of factors involved in the alternative splicing of H-Ras.
Conclusion
p68 is crucial for regulating H-Ras expression and its splicing, impacting cell proliferation and cancer processes.
Supporting Evidence
- p68 unwinds the stem-loop IDX-rasISS1 structure, preventing hnRNP H binding.
- Knockdown of hnRNP A1, FUS/TLS, and hnRNP H upregulates SC35-binding protein SFRS2IP.
- FUS/TLS upregulates p19 expression and stimulates IDX inclusion.
- In vivo RNAi-mediated depletion of hnRNP H decreases p19 H-Ras abundance.
Takeaway
This study shows that a protein called p68 helps control how a gene related to cancer is spliced, which can affect how cells grow.
Methodology
The study used RNAi-mediated depletion assays and in vitro splicing reactions to analyze the role of p68 in H-Ras splicing.
Digital Object Identifier (DOI)
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