Imprecise excision of the P{EPgy2}CG4603EY07831 progenitor, resulting in a 1348-bp deletion that eliminates two-thirds of CG4603 (all transcripts) including the initiator ATG.
Usp51 homozygotes X-ray-irradiated as third instar larvae do not show changes in pupation or eclosion compared to controls, but adults show wing and eye abnormalities.