dm amino acid residues "DCMW" in the MB2 domain have been replaced with "AAAA".
Flies expressing dmMB2A.Scer\UAS.T:HA1 under the control of Scer\GAL4GMR.PB show a significant increase in average ommatidial area compared to controls.
Flies expressing dmMB2A.Scer\UAS.T:HA1 under the control of Scer\GAL4ap-md544 show a moderate bending down of the wings.
Expression of dmMB2A.Scer\UAS.T:HA1 under the control of Scer\GAL4ap-md544 induces apoptosis in the larval wing disc.
The average clonal area of clones in the larval wing disc expressing dmMB2A.Scer\UAS.T:HA1 under the control of Scer\GAL4Act5C.PP is increased compared to that of control clones.
Expression of dmMB2A.Scer\UAS.T:HA1 under the control of Scer\GAL4αTub84B.PBb in eyes using the "ey-FLP" system results in an increase in ommatidial size compared to controls, both when the eyes are dm[+] and when they are mutant for dm4.