UASt regulatory sequences drive expression of the extracellular domain of sns (amino acids 1 to 1009) fused in frame to the Tag:GPI(Fas1) GPI-anchor sequence.
Scer\GAL4how-24B/snsUAS.Tag:GPI(Fas1) is a non-suppressor of embryonic myoblast phenotype of snsXB3/snsZF1.4
Expression of Fas1::snsGPI.Scer\UAS under the control of Scer\GAL4how-24B fails to rescue the mutant phenotype of snsZF1.4/snsXB3 embryos. Fusion competent myoblasts do not appear to migrate towards the founder cells in these embryos.