UASt regulatory sequences drive expression of the NC1 domain of Mp. A Tag:SS(wg) signal sequence has been inserted at the N-terminal end of the Mp sequences.
Expression of mpNC1.Scer\UAS.T:wg under the control of Scer\GAL4how-24B reduces the number of ISNb pathfinding errors from 7.2% in wild type to an extremely low error rate of 0.75%.
Scer\GAL4how-24B/MpNC1.UAS.Tag:SS(wg) fails to rescue MpΔC12-25
The ISNb axon guidance defects seen in mpΔC12-25 embryos are not rescued by expression of mp3hNC1.Scer\UAS under the control of Scer\GAL4how-24B.