UASt regulatory sequences drive expression of Abd-B-m carrying mutations to switch to a central class specific signature (G, Q and T at positions 4, 6 and 7).
Scer\GAL4Abd-B-MD761/Abd-BCEN.UAS partially rescues Abd-BMD761/Abd-BM1
Abd-BCEN.UAS/Scer\GAL4Abd-B-LDN fails to rescue Abd-BM1/Abd-BLDN