UASt regulatory sequences drive expression of a chimeric protein composed of the βTub56D coding region in which the C-terminal tail region has been replaced by the corresponding region from βTub97EF.
Scer\GAL4αTub84B.PL/βTub56D::βTub97EF56D-97EFtail.UAS is a suppressor of lethal - all die during first instar larval stage phenotype of βTub56DNP0949/Df(2R)BSC782