RNA, Small Nucleolar

Small nuclear RNAs that are involved in the processing of pre-ribosomal RNA in the nucleolus. Box C/D containing snoRNAs (U14, U15, U16, U20, U21 and U24-U63) direct site-specific methylation of various ribose moieties. Box H/ACA containing snoRNAs (E2, E3, U19, U23, and U64-U72) direct the conversion of specific uridines to pseudouridine. Site-specific cleavages resulting in the mature ribosomal RNAs are directed by snoRNAs U3, U8, U14, U22 and the snoRNA components of RNase MRP and RNase P.

Year introduced: 2000

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Tree Number(s): D13.444.735.628.818.800, D13.444.735.790.552.937.800

MeSH Unique ID: D020537

Entry Terms:

• snoRNA
• Small Nucleolar RNA

Previous Indexing:

• Cell Nucleolus (1975-1999)
• RNA (1975-1985)
• RNA, Small Nuclear (1986-1999)

All MeSH Categories
Chemicals and Drugs Category
Nucleic Acids, Nucleotides, and Nucleosides
Nucleic Acids
RNA
RNA, Nuclear
RNA, Small Nuclear
RNA, Small Nucleolar

All MeSH Categories
Chemicals and Drugs Category
Nucleic Acids, Nucleotides, and Nucleosides
Nucleic Acids
RNA
RNA, Untranslated
RNA, Small Untranslated
RNA, Small Nuclear
RNA, Small Nucleolar