Small nucleolar RNA SNORD38

Small nucleolar RNA SNORD38
Predicted secondary structure and sequence conservation of SNORD38
Identifiers
Symbol SNORD38
Alt. Symbols U38
Rfam RF00212
Other data
RNA type Gene; snRNA; snoRNA; C/D-box
Domain(s) Eukaryota
GO 0006396 0005730
SO 0000593

snoRNA U38 (also known as SNORD38) is a non-coding RNA (ncRNA) molecule which functions in the modification of other small nuclear RNAs (snRNAs). This type of modifying 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 U38 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]

U38 is located in introns 4 and 5 of ribosomal protein S8 in human and in the homologous genes in mouse and cow.[2] U38 is predicted to guides the methylation of 2'-O-ribose residues in 28S ribosomal RNA (rRNA). The mouse homologue of U38 (MBII-329) has also been identified.[3]

References

  1. Galardi, S.; Fatica, A.; Bachi, A.; Scaloni, A.; Presutti, C.; Bozzoni, I. (October 2002). "Purified Box C/D snoRNPs Are Able to Reproduce Site-Specific 2'-O-Methylation of Target RNA in Vitro". Molecular and Cellular Biology 22 (19): 6663–6668. doi:10.1128/MCB.22.19.6663-6668.2002. PMC 134041. PMID 12215523.
  2. Nicoloso, M.; Qu, L. H.; Michot, B.; Bachellerie, J. P. (July 1996). "Intron-encoded, Antisense Small Nucleolar RNAs: The Characterization of Nine Novel Species Points to Their Direct Role as Guides for the 2′-O-ribose Methylation of rRNAs". Journal of Molecular Biology 260 (2): 178–195. doi:10.1006/jmbi.1996.0391. PMID 8764399.
  3. Huttenhofer, Alexander; Kiefmann, Martin; Meier-Ewert, Sebastian; O'Brien, John; Lehrach, Hans; Bachellerie, Jean-Pierre; Brosius, Jürgen (1 June 2001). "RNomics: an experimental approach that identifies 201 candidates for novel, small, non-messenger RNAs in mouse". The EMBO Journal 20 (11): 2943–2953. doi:10.1093/emboj/20.11.2943. PMC 125495. PMID 11387227.

External links