Nucleotide substitution: G357A.
Amino acid replacement: W119term.
G16029552A
G357A
W119term | Notum-PA
W119term
Mutants show loss of expression of P{FMRFa-EGFP.Tv}, a marker for the six Ap4 neurons in the developing ventral nerve cord, and loss of expression of eya, which identifies the four Ap cluster neurons.