Small nucleolar RNA SNORD79
Predicted secondary structure and sequence conservation of SNORD79
Identifiers
SymbolSNORD79
Alt. SymbolsU79
RfamRF00152
Other data
RNA typeGene; snRNA; snoRNA; C/D-box
Domain(s)Eukaryota
GOGO:0006396 GO:0005730
SOSO:0000593
PDB structuresPDBe

In molecular biology, snoRNA U79 (also known as SNORD79 or Z22) 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.

U79 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]

snoRNA U79 is found in intron 7 of the GAS5 gene in humans and is also present in mice.[2] U79 is predicted to guide the 2'O-ribose methylation of 28S ribosomal RNA (rRNA) residue A3809.[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): 6663–8. doi:10.1128/MCB.22.19.6663-6668.2002. PMC 134041. PMID 12215523.
  2. ↑ Smith CM, Steitz JA (December 1998). "Classification of gas5 as a multi-small-nucleolar-RNA (snoRNA) host gene and a member of the 5'-terminal oligopyrimidine gene family reveals common features of snoRNA host genes". Molecular and Cellular Biology. 18 (12): 6897–909. doi:10.1128/mcb.18.12.6897. PMC 109273. PMID 9819378.
  3. ↑ Lestrade L, Weber MJ (January 2006). "snoRNA-LBME-db, a comprehensive database of human H/ACA and C/D box snoRNAs". Nucleic Acids Research. 34 (Database issue): D158-62. CiteSeerX 10.1.1.105.7552. doi:10.1093/nar/gkj002. PMC 1347365. PMID 16381836.
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