Amino acid replacement: E859K.
Mushroom body clones expressing droshaE859K.Scer\UAS.T:Zzzz\FLAG under the control of Scer\GAL4ey-OK107 appear wild-type.
Scer\GAL4ey-OK107/droshaE859K.UAS.Tag:FLAG partially rescues drosha21K11
The rescue of drosha21K11 through expression of droshaE859K.Scer\UAS.T:Zzzz\FLAG under the control of Scer\GAL4ey-OK107 is not complete, as α/β neuron overextension is still detected.