Drosophila exoribonuclease nibbler is a tumor suppressor, acts within the RNAi machinery and is not enriched in the nuage during early oogenesis
BACKGROUND: micro RNAs (miRNAs) are important regulators of many biological pathways. A plethora of steps are required to form, from a precursor, the mature miRNA that eventually acts on its target RNA to repress its expression or to inhibit translation. Recently, Drosophila nibbler (nbr) has been shown to be an important player in the maturation process of miRNA and piRNA. Nbr is an exoribonuclea