Recombination between the progenitor insertions resulting in a deletion of 13,980 bp, predicted to remove all but the first 30 amino acids of the 527 amino acid protein encoded by pHCl-2.
The basal fluid secretion rate of Malpighian tubules from pHCl-2Δ/pHCl-2Δ as well as pHCl-2Δ/pHCl-2MB03564 adult females is comparable to wild-type, whereas the secretion rate in pHCl-2Δ/Df(3R)Exel6218 is significantly increased.