4kb genomic fragment encompassing the Act88F gene (includes approximately 1420bp of 5' flanking sequence and approximately 400bp of 3' flanking sequence). A V339I amino acid replacement has been introduced into the coding sequence.
G15441694A
V340I | Act88F-PA
V339I
Site of nucleotide substitution in mutant inferred by FlyBase based on reported amino acid change.
Act88F6 null flies homozygous for Act88FV339I insert have almost normal flight ability, flies carrying one mutant copy have partial recovery of flight. Indirect flight muscles in Act88F6 homozygous for Act88FV339I insert have a very disrupted structure.
IFM myofibrils are studied in transformant Act88F6 mutants. Mutants produce no fibrillar material at all.
Act88FV339I partially rescues Act88F6