Insertion in the 5' untranslated region, at position +11 from the predicted start of transcription.
lethal (with Df(3L)fz-GF3b)
Hemizygous flies have shrivelled wings, missing thoracic bristles, irregular abdominal bristles, disrupted tergites and legs, and show male and female sterility.
Hemizygous larval brain neuroblasts have undercondensed mitotic chromosomes and there is a high incidence of chromatin bridges during anaphase.
Separable from: a second site independent lethal mutation on the same chromosome.
The P{lacW}endosS067006 insertion appears to be within the transcription units of both CG6650 and endos (these 2 genes are divergently transcribed).
Precise excision of insertion reverts the mutant phenotype.