小核仁RNASmall nucleolar RNAssnoRNAs)是一类小型RNA分子,可引导核糖体RNA(rRNA)或其他RNA的化学修饰(如甲基化)作用。根据MeSH的分类,此分子属于小核RNA(snRNA)的一种。可分为C/D box与H/ACA box两种。

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C/D box snoRNA(snoRNA的一类)的二级结构,图中为SNORD73。

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