Table 1.

Involvement of uridylated RNAs in cellular processes.

organism	process	uridylated RNA	references
Ceanorhabditis elegans, Danio rerio, mammals	development	let-7 microRNA	[10–12]
mammals	apoptosis	mRNA	[13]
mammals	cell cycle	histone mRNA	[14–20]
eukaryotes	host–virus interaction	ncRNAs, viral RNA	[21,22]
trypanosomes	RNA editing	guide RNA	[23,24]
trypanosomes	translation activation	mRNA	[25]
Xenopus, mammals	translation repression	mRNA	[4,26]
Schizosaccharomyces pombe, plants, mammals	RNA degradation	various types of RNAs	[4,7,27–36]
trypanosomes, mammals	RNA biogenesis	U6 snRNA, guide RNA, let-7 miRNA	[23,24,37–41]
plants, mammals	RNA stabilization	histone mRNA, mRNAs	[7,18,42]
mammals	immunity	miRNAs	[43,44]
mammals	sorting of RNA into extracellular exosomes	miRNA, Y RNA	[45]
mammals	oogenesis	mRNA	[30]
Drosophila melanogaster	mirtron elimination	mirtrons	[46,47]