Jump to content

Small nucleolar RNA R20

From Wikipedia, the free encyclopedia

This is an old revision of this page, as edited by SmackBot (talk | contribs) at 14:18, 18 November 2007 (Standard headings &/or gen fixes. using AWB). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Small nucleolar RNA R20
Identifiers
Other data
PDB structuresPDBe

Small nucleolar RNA R20 is a non-coding RNA (ncRNA) molecule which functions in the modification of other small nuclear RNAs (snRNAs). This type of modifiying RNA is usually located in the nucleolus of the eukaryotic cell which is a major site of snRNA biogenesis. It is known as a small nucleolar RNA (snoRNA) and also often referred to as a guide RNA. snoRNA R20 belongs to the C/D box class of snoRNAs which contain the conserved sequence motifs known as the C box (UGAUGA) and the D box (CUGA). Most of the members of the box C/D family function in directing site-specific 2'-O-methylation of substrate RNAs[1]. Plant snoRNA R20 was identified in a screen of Arabidopsis thaliana [2].

References

  1. ^ Galardi, S (2002). "Purified box C/D snoRNPs are able to reproduce site-specific 2'-O-methylation of target RNA in vitro". Mol Cell Biol. 22: 6663–6668. PMID 12215523. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)
  2. ^ Barneche F, Gaspin C, Guyot R, Echeverría M (2001). "Identification of 66 box C/D snoRNAs in Arabidopsis thaliana: extensive gene duplications generated multiple isoforms predicting new ribosomal RNA 2'-O-methylation sites". J. Mol. Biol. 311 (1): 57–73. doi:10.1006/jmbi.2001.4851. PMID 11469857.{{cite journal}}: CS1 maint: multiple names: authors list (link)