Polytene chromosomes normal.
A base pair substitution followed by a single base pair deletion at positions 67/68 of exon 5 of the cu-RE isoform, which causes a premature translational stop at amino acid position 147 of the cu-PE protein.
A base substitution (A to T) followed by a single base deletion causes premature translation termination.
T
cu3
cu1
Induced on: In(3L)A54.