4.5kb EcoRI genomic fragment containing the entire cpb gene.
position of restriction fragment on reference sequence inferred by FlyBase curator
wild-type
cpb+t4.5 rescues cpb6.15
cpb+t4.5 rescues cpbF19
cpb+t4.5 partially rescues cpbF44/Df(2L)E.2
cpb+t4.5 rescues the early lethality of cpbF44/Df(2L)E.2 animals, but not the retinal photoreceptor defects apparent in late third instar.