Small Nucleolar RNA Snord28 (Paperback)

High Quality Content by WIKIPEDIA articles! Small nucleolar RNA SNORD28 (U28) is a member of the C/D class of snoRNA which contain the C (UGAUGA) and D (CUGA) box motifs. U28 is encoded within the U22 snoRNA host gene (UHG) in mammals and is thought to act as a 2'-O-ribose methylation guide for ribosomal RNA. Small nucleolar RNAs (snoRNAs) are a class of small RNA molecules that primarily guide chemical modifications of other RNAs, mainly ribosomal RNAs, transfer RNAs and small nuclear RNAs. There are two main classes of snoRNA, the C/D box snoRNAs which are associated with methylation, and the H/ACA box snoRNAs which are associated with pseudouridylation. snoRNAs are commonly referred to as guide RNAs but should not be confused with the guide RNAs that direct RNA editing in trypanosomes.