P{GalW} is an enhancer trap construct that encodes a GAL4 driver. It is a hybrid of the P{lacW} and P{GawB} elements, designed to improve the low transposition frequency observed for P{GawB}.
Construct: The Ecol\lacZ enhancer construct pP{lwB} has been modified to encode Scer\GAL4 instead of Ecol\lacZ.
Pattern of expression dependent upon position of insertion.