UAS regulatory sequences drive expression of Hsap\MECP2 carrying a premature stop codon at residue 294, plus the amino acid replacement S80A (this mutation should block phosphorylation at this residue).
Expression of Hsap\MECP2R294X.S80A.Scer\UAS under the control of Scer\GAL4futsch-C380 leads to apoptosis of motoneurons 5 (MN5) with at least one of the two MN5 somata missing in all adult flies at one day post-eclosion.