Small nucleolar RNA R44/J54/Z268 family

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Small nucleolar RNA R44/J54/Z268 family
RF00357.jpg
Predicted secondary structure and sequence conservation of snoR44_J54
Identifiers
SymbolsnoR44_J54
Rfam RF00357
Other data
RNA type Gene; snRNA; snoRNA; CD-box
Domain(s) Eukaryota
GO GO:0006396 GO:0005730
SO SO:0000593
PDB structures PDBe

In molecular biology, Small nucleolar RNA R44/J54/Z268 refers to a group of related non-coding RNA (ncRNA) molecules which function in the biogenesis of other small nuclear RNAs (snRNAs). These small nucleolar RNAs (snoRNAs) are modifying RNAs and usually located in the nucleolus of the eukaryotic cell which is a major site of snRNA biogenesis.

These snoRNAs appear to be plant specific and were identified in Arabidopsis thaliana and rice Oryza sativa (snoRNAs Z268 and J54). These related snoRNAs are predicted to belong 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]

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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.