Fragments of small nucleolar RNAs as a new source for noncoding Rnas

Marina Falaleeva, Stefan Stamm

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

3 Scopus citations


Small nucleolar RNAs (snoRNAs) are small, nonprotein-coding RNAs that accumulate in the nucleolus. So far, these RNAs have been implicated in modification of rRNAs, tRNAs, and snRNAs. snoRNAs can be grouped into two classes: C/D box and H/ACA box snoRNAs that direct 2′-O-methylation and pseudouridylation, respectively. However, for numerous snoRNAs, no target RNAs have been identified. High-throughput sequencing and detailed analysis of RNase protection experiments have demonstrated that some snoRNAs are processed into smaller RNAs. These processed snoRNAs are 20-100 nt in length, are mostly nuclear and do not form canonical snoRNPs, that is, they do not associate with methylase or pseudouridylation activity. They can act by binding to pre-mRNAs in the nucleus where they regulate alternative pre-mRNA splicing. Thus, processed snoRNAs (psnoRNAs) represent a novel class of regulatory RNAs.

Original languageEnglish
Title of host publicationRegulatory RNAs
Subtitle of host publicationBasics, Methods and Applications
Number of pages23
ISBN (Electronic)9783642225178
StatePublished - Aug 1 2012

Bibliographical note

Publisher Copyright:
© 2012 Springer-Verlag Berlin Heidelberg. All rights are reserved.

ASJC Scopus subject areas

  • General Biochemistry, Genetics and Molecular Biology


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