The Act5C promoter drives expression of a mutated form of fz that contains a E279K amino acid substitution.
abnormal planar polarity | adult stage, with fz21
visible, with fz21
leg, with fz21
leg joint | ectopic, with fz21
Adults carrying fz8A4.Act5C in a fz21 background have an average of 3.3 +/- 0.8 extra tarsal joints in the leg compared to wild type.
fz8A4.Act5C rescues the wing margin phenotype of fz21 fz2C1 double homozygous clones.