Insertion of a P{lacW} element 892bp upstream of the 5' end of the cDNA.
Mutants exhibit visible disc abnormalities: discs are small. Clones induced in wild type discs are abnormal: cell differentiation is affected, clones in the wing cause N-like phenotypes, vein thickening and scalloping, the effect is fully autonomous.
The low viability of B4k01405 homozygotes is partially rescued by B4Scer\UAS.cSa expressed under the control of Scer\GAL4C-765.
B4k01405 is partially rescued by B4UAS.cSa/Scer\GAL4C-765