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・ Small plaque parapsoriasis
・ Small plates
・ Small Point-Adam's Cove-Blackhead-Broad Cove
・ Small Pond (Innsbruck)
・ Small nucleolar RNA SNORD34
・ Small nucleolar RNA SNORD35
・ Small nucleolar RNA SNORD36
・ Small nucleolar RNA SNORD37
・ Small nucleolar RNA SNORD38
・ Small nucleolar RNA SNORD39
・ Small nucleolar RNA SNORD41
・ Small nucleolar RNA SNORD42
・ Small nucleolar RNA SNORD43
・ Small nucleolar RNA SNORD44
・ Small nucleolar RNA SNORD45
Small nucleolar RNA SNORD46
・ Small nucleolar RNA SNORD47
・ Small nucleolar RNA SNORD48
・ Small nucleolar RNA SNORD49
・ Small nucleolar RNA SNORD50
・ Small nucleolar RNA SNORD51
・ Small nucleolar RNA SNORD52
・ Small nucleolar RNA SNORD53
・ Small nucleolar RNA SNORD54
・ Small nucleolar RNA SNORD56
・ Small nucleolar RNA SNORD57
・ Small nucleolar RNA SNORD58
・ Small nucleolar RNA SNORD59
・ Small nucleolar RNA SNORD60
・ Small nucleolar RNA SNORD61


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Small nucleolar RNA SNORD46 : ウィキペディア英語版
Small nucleolar RNA SNORD46

snoRNA U46 (also known as SNORD46) 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.
snoRNA U46 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.
U46 is encoded in intron 2 of the ribosomal protein S8 gene in human, and is hypothesised to guide methylation of 2'-O-ribose residues on 28S ribosomal RNA (rRNA). The homologue of this snoRNA in ''Arabidopsis thaliana'' is called snoZ153. Some human U40 sequences have been annotated in the sequence databases (Genbank) as U46.
==References==


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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