UASt regulatory sequences drive expression of a chimeric protein in which amino acid residues 261-322 of nrv2 (part of the extracellular domain) replace the corresponding portion of nrv3.
Scer\GAL4da.G32/nrv2::nrv3Nrv2D.UAS is a non-suppressor of presumptive embryonic/larval tracheal system phenotype of nrv223B