In molecular biology, snoRNA U62 (also known as SNORD62) 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.
| Small nucleolar RNA SNORD62 | |
|---|---|
 Predicted secondary structure and sequence conservation of SNORD62 | |
| Identifiers | |
| Symbol | SNORD62 |
| Alt. Symbols | U62 |
| Rfam | RF00153 |
| Other data | |
| RNA type | Gene; snRNA; snoRNA; C/D-box |
| Domain(s) | Eukaryota |
| GO | GO:0006396 GO:0005730 |
| SO | SO:0000593 |
| PDB structures | PDBe |
snoRNA U62 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]
In the human genome there are two identical copies of snoRNA U62 (called U62A and U62B) both of which are located within the introns of the same host gene which encodes a hypothetical protein (KIAA0515).[2] U62 is predicted to guide the 2'O-ribose methylation of 18S ribosomal RNA (rRNA) residue A590.[3]
References
edit- ^ 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.
- ^ Tycowski KT, Smith CM, Shu MD, Steitz JA (December 1996). "A small nucleolar RNA requirement for site-specific ribose methylation of rRNA in Xenopus". Proceedings of the National Academy of Sciences of the United States of America. 93 (25): 14480–5. Bibcode:1996PNAS...9314480T. doi:10.1073/pnas.93.25.14480. PMC 26158. PMID 8962077.
- ^ 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.
External links
edit- Page for Small nucleolar RNA SNORD62 at Rfam
- Entry for SNORD62A at snoRNABase
- Entry for SNORD62B at snoRNABase
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