Small nucleolar RNA SNORD47

SNORD47 (also known as U47) 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 U57 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 [cite journal | last = Galardi | first = S | coauthors = Fatica A, Bachi A, Scaloni A, Presutti C, Bozzoni I | year = 2002 | title = Purified box C/D snoRNPs are able to reproduce site-specific 2'-O-methylation of target RNA in vitro | journal = Mol Cell Biol | volume = 22 | pages = 6663–6668 | pmid = 12215523 | doi = 10.1128/MCB.22.19.6663-6668.2002] .

This snoRNA was oroginally cloned from HeLa cells and expression verified by northern blotting cite journal | last = Kiss-Laszlo | first = Z | coauthors = Henry Y, Bachellerie JP, Caizergues-Ferrer M, Kiss T | year = 1996 | title = Site-specific ribose methylation of preribosomal RNA: a novel function for small nucleolar RNAs | journal = Cell | volume = 85 | pages = 1077–1088 | pmid = 8674114 | doi = 10.1016/S0092-8674(00)81308-2 ] . It is predicted to guide 2'O-ribose methylation of ribosomal RNA (rRNA) 28S at residue C3866. The mouse orthologue was also cloned cite journal | last = Huttenhofer | first = A | coauthors = Kiefmann M, Meier-Ewert S, O'Brien J, Lehrach H, Bachellerie JP, Brosius J | year = 2001 | title = RNomics: an experimental approach that identifies 201 candidates for novel, small, non-messenger RNAs in mouse | journal = EMBO J | volume = 20 | pages = 2943–2953 | pmid = 11387227 | doi = 10.1093/emboj/20.11.2943 ]

This snoRNA is encoded in the introns of the same genes as other C/D bx snoRNAs U44, U74, U75, U76, U77, U78, U79, U80 and U81.cite journal | last = Lestrade | first = L | coauthors = Weber MJ | year = 2006 | title = snoRNA-LBME-db, a comprehensive database of human H/ACA and C/D box snoRNAs | journal = Nucleic Acids Res. | volume = 34 | pages = D158–D162 | pmid = 16381836 | doi = 10.1093/nar/gkj002 ] .

References

External links

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* [http://www-snorna.biotoul.fr/plus.php?id=U47 snoRNABase entry for SNORD47]