Small nucleolar RNA Z242 is a non-coding RNA (ncRNA) molecule which function in the biogenesis of other small nuclear RNAs (snRNAs). This small nucleolar RNA (snoRNA) is a modifiying RNA and usually located in the nucleolus of the eukaryotic cell which is a major site of snRNA biogenesis.
snoRNA Z242 was identified in rice Oryza sativa, and is predicted to belong 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.
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“Children crawl before they walk, walk before they run—each generally a precondition for the other. And with each step they take toward more independence, more mastery of the environment, their mothers take a step away—each a small separation, a small distancing.”
—Lillian Breslow Rubin (20th century)