Small Cajal body specific RNA 25 (otherwise known as scaRNA25, HBI-100, MBI-100, and MBI-114) is a scaRNA, which are a class of ncRNAs characterised as small nuclear RNAs localised to the Cajal bodies.
ScaRNA25 was originally identified in a large scale cloning project in mice. Later sequence analysis predicted that this RNA guides the pseudouridylation of position U40 in the U6 snRNA.
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