Insertion of a P{GS} element at +2bp (relative to the transcription start site).
Flies expressing P{GS}His2AvGS3127 under the control of Scer\GAL4hs.2sev show semi-lethality and have rough eyes. Flies expressing P{GS}His2AvGS3127 under the control of Scer\GAL4dpp.blk1 have fused tarsal segments.