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Updated: Jul 15, 2025
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RNA Pull-down Procedure to Identify RNA Targets of a Long Non-coding RNA
Published on: April 10, 2018
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Noncoding snoRNA host genes are a distinct subclass of long noncoding RNAs
1Department of Immunology and Regenerative Biology, Weizmann Institute of Science, 7610001 Rehovot, Israel; Department of Molecular Neuroscience, Weizmann Institute of Science, 7610001 Rehovot, Israel.
Trends in Genetics : TIG
|October 2, 2023
Summary
Noncoding snoRNA host genes (ncSNHGs) were thought to only aid small nucleolar RNA (snoRNA) production. Recent research reveals ncSNHGs have distinct functions beyond snoRNA biogenesis, establishing them as a unique long noncoding RNA subclass.
Area of Science:
- Genomics
- Molecular Biology
- RNA Biology
Background:
- Mammalian genomes produce diverse noncoding RNAs (ncRNAs).
- Small nucleolar RNA host genes (snoRNA host genes) were traditionally viewed as simple facilitators of snoRNA biogenesis.
- Emerging evidence suggests ncRNAs possess functions beyond their initial understanding.
Purpose of the Study:
- To review and summarize evidence on noncoding snoRNA host genes (ncSNHGs).
- To establish ncSNHGs as a distinct subclass of long noncoding RNAs (lncRNAs).
- To highlight the independent functions of ncSNHGs separate from their encoded snoRNAs.
Main Methods:
- Literature review of past and recent findings on ncSNHGs.
- Comparative analysis of ncSNHG features against regular lncRNAs.
- Synthesis of evidence regarding the biological roles of ncSNHGs.
Main Results:
- ncSNHGs exhibit characteristics distinct from typical lncRNAs.
- ncSNHGs possess functions independent of and unrelated to the snoRNAs they host.
- ncSNHGs represent a defined subclass within the broader category of lncRNAs.
Conclusions:
- ncSNHGs are not merely passive containers for snoRNAs.
- The independent functions of ncSNHGs warrant further investigation.
- Understanding ncSNHGs is crucial for a comprehensive view of lncRNA biology and genome regulation.
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