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Related Experiment Video

Updated: May 26, 2026

Low-input Nucleus Isolation and Multiplexing with Barcoded Antibodies of Mouse Sympathetic Ganglia for Single-nucleus RNA Sequencing
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Human box C/D snoRNA processing conservation across multiple cell types.

Michelle S Scott1, Motoharu Ono, Kayo Yamada

  • 1Division of Biological Chemistry and Drug Discovery, College of Life Sciences, University of Dundee, Dow Street, Dundee DD1 5EH, UK. michelle.scott@usherbrooke.ca

Nucleic Acids Research
|December 27, 2011
PubMed
Summary
This summary is machine-generated.

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Small nucleolar RNA fragments (sdRNAs) are conserved across human cells and can regulate gene splicing. These sdRNAs, derived from small nucleolar RNAs (snoRNAs), show specific accumulation patterns, suggesting novel regulatory roles beyond rRNA modification.

Area of Science:

  • Molecular Biology
  • RNA Biology
  • Genetics

Background:

  • Small nucleolar RNAs (snoRNAs) primarily guide ribosomal RNA (rRNA) modifications.
  • Recent studies identified stable small fragments (<35 nt) from snoRNAs, termed sdRNAs, with potential roles in splicing and translation regulation.

Purpose of the Study:

  • To investigate the conservation and characteristics of box C/D sdRNA accumulation patterns across human cell types.
  • To explore the potential regulatory functions of specific sdRNAs, particularly in pre-messenger RNA (pre-mRNA) splicing.

Main Methods:

  • Comparison of human small RNA deep sequencing data sets.
  • Analysis of sdRNA sequence motifs and guide region presence.
  • Detailed analysis of the HBII-180C snoRNA and its derived sdRNAs.

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  • Functional assays to assess the impact of sdRNAs on alternative splicing.

    • Main Results:

    • Box C/D sdRNA accumulation patterns are conserved across human cell types, though abundance ratios vary.
    • sdRNA profiles are specific and distinct from general RNA degradation products.
    • A specific sdRNA derived from HBII-180C, complementary to FGFR3 pre-mRNA, was identified.
    • This HBII-180C-derived sdRNA demonstrated the ability to influence alternative splicing of FGFR3 pre-mRNA.

    Conclusions:

    • Accumulation patterns of sdRNAs are conserved and specific, suggesting non-random processing.
    • Certain sdRNAs, like those from HBII-180C, possess functional roles in regulating alternative splicing of pre-mRNAs.
    • This supports a broader regulatory role for snoRNAs and their fragments beyond rRNA modification.