Construct: 249bp deletion in the 5' untranslated region (starting at position 24 relative to the mutated nucleotide present in oskM1L).
oskM1LΔ1 fails to rescue osk1/Df(3R)p-XT103
Fails to rescue the abdominal and germ line defects of embryos derived from osk1/Df(3R)p-XT103 females.