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・ Small nucleolar RNA SNORD103
・ Small nucleolar RNA SNORD105
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・ Small nucleolar RNA SNORD14
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・ Small nucleolar RNA SNORD21
Small nucleolar RNA SNORD22
・ Small nucleolar RNA SNORD23
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・ Small nucleolar RNA SNORD28
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・ Small nucleolar RNA SNORD30
・ Small nucleolar RNA SNORD31
・ Small nucleolar RNA SNORD32
・ Small nucleolar RNA SNORD34
・ Small nucleolar RNA SNORD35
・ Small nucleolar RNA SNORD36
・ Small nucleolar RNA SNORD37


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Small nucleolar RNA SNORD22 : ウィキペディア英語版
Small nucleolar RNA SNORD22

snoRNA U22 (also known as SNORD22) 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.
U22 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.
In the human genome snoRNA U22 is encoded along with seven other snoRNAs within the introns of the same gene (called UHG for U22 host gene) in mammals. U22 has also been identified in the amphibian ''Xenopus laevis'' U22 is predicted to guide the 2'-O-ribose methylation guide for ribosomal RNA.〔
==References==


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