Construct: Deletion of sequences encoding nos amino acid residues 218 to 257.
wild-type
nanosΔE rescues nanos18
nanosΔE rescues nanosBN
Rescues the abdominal segmentation defects seen in embryos derived from nosBN females. Rescues the oogenesis defects seen in nos18 hemizygous females; females lay fertilised eggs and have ovaries of normal size.