Small Cajal body specific RNA 4

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Small Cajal body specific RNA 4
Template:Abbreviation
Type: Gene; snRNA; guide; scaRNA;
2° structure: Predicted; RNAFOLD; Moxon SJ
Seed alignment: Moxon SJ
Avg length: 127.2 nucleotides
Avg identity: 88%

In molecular biology, small Cajal body specific RNA 4 (also known as ACA26) is believed to be a guide RNA of the H/ACA box class, since it has the predicted hairpin-hinge-hairpin-tail structure, conserved H/ACA-box motifs, and is found associated with GAR1.[1] In particular, ACA26 is predicted to guide the pseudouridylation of residues U39 and U41 in U2 snRNA.[1] Such scaRNAs are a specific class of small nuclear RNAs that localise to the Cajal bodies and guide the modification of RNA polymerase II transcribed spliceosomal RNAs U1, U2, U4, U5 and U12.[2]

[edit] References

  1. ^ a b Kiss, AM; Jady BE, Bertrand E, Kiss T (2004). "Human box H/ACA pseudouridylation guide RNA machinery". Mol Cell Biol 24: 5797–5807. doi:10.1128/MCB.24.13.5797-5807.2004. PMID 15199136. 
  2. ^ Darzacq, X; Jady BE, Verheggen C, Kiss AM, Bertrand E, Kiss T (2002). "Cajal body-specific small nuclear RNAs: a novel class of 2'-O-methylation and pseudouridylation guide RNAs". EMBO J. 21: 2746–2756. doi:10.1093/emboj/21.11.2746. PMID 12032087. 
  • Lestrade, L; Weber MJ (2006). "snoRNA-LBME-db, a comprehensive database of human H/ACA and C/D box snoRNAs". Nucleic Acids Res. 34: D158–D162. doi:10.1093/nar/gkj002. PMID 16381836. 

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