Two upper panels: western blots showing the abundances of Flag-Vret-L and Ago3 in both samples. Note that Flag-Vret-L is present only in the Vret-L complex but not with Ago3 isolated from total cell lysates (Fig EV1F). Bottom panel: Northern blot showing the level of PiggyBac-piRNA associated with Ago3 in total lysate (Ago3-IP) and in the Vret-L complex (Flag-Vret-IP). The ratio of the piRNA signal intensity in the two samples is indicated at the bottom. 