Figure 4. Truncated Artemia ABD-A represses Keilin’s organs and transforms segments toward an abdominal identity in Drosophila embryos.
(A) Drosophila ABD-A can completely repress Keilin’s organs even when ectopically expressed at ~40% of endogenous levels. Artemia ABD-ACΔ can repress 100% of Keilin’s organs when ectopic expression is near endogenous levels, but shows reduced ability to repress Keilin’s organs at lower protein concentrations. (B) When ubiquitously expressed in Drosophila embryos, Artemia ABD-ACΔ transforms thoracic denticle belts towards an abdominal A1-like identity while Drosophila ABD-A transforms denticle belts towards abdominal A2-4 identities.