Menu
Home
People
Places
Arts
History
Plants & Animals
Science
Life & Culture
Technology
Reference.org
Small nucleolar RNA-derived microRNA
open-in-new
<p>In molecular biology, small nucleolar RNA derived microRNAs are <a href="/facts/MicroRNA/UjqbYYpe">microRNAs</a> (miRNA) derived from <a href="/facts/Small_nucleolar_RNA/lcWShLfJ">small nucleolar RNA</a> (snoRNA). MicroRNAs are usually derived from precursors known as pre-miRNAs, these pre-miRNAs are recognised and cleaved from a pri-miRNA precursor by the <a href="/facts/Pasha_(protein)/pvTEXmDh">Pasha</a> and <a href="/facts/Drosha/nPl2pp5j">Drosha</a> proteins. However some microRNAs, <a href="/facts/Mirtrons/TfDs9XXK">mirtrons</a>, are known to be derived from <a href="/facts/Introns/LS6YdBEK">introns</a> via a different pathway which bypasses Pasha and Drosha. Some microRNAs are also known to be derived from small nucleolar RNA. </p>