Amino acid replacement: W821term.
G12738631A
G?A
W821term | Ptp69D-PA; W821term | Ptp69D-PB
W821term
G to A nucleotide change at the second or third position of the Trp codon leads to a nonsense mutation (exact site of mutation unspecified).
At 25oC, the survival rates of homozygotes are: adult survival - 1%, eclosion - 3%, pupation 16%. At 18oC, the survival rates of homozygotes are: adult survival - 0%, eclosion - 20%, pupation 39%. Ptp69D17 embryos show motor axon defects; 19% of ISNb axons, 5% of ISN axons, 6% of SNa axons and 4% of SNc axons show defects.