UASt regulatory sequences drive expression of a Hsap\TNPO3 cDNA that has been mutated to carry the c.2771delA variant; this mutation deletes a single nucleotide in the stop codon of the wild-type coding sequence, resulting in a C-terminal extension of 15 amino acids, and is a pathogenic variant associated with limb-girdle muscular dystrophy D2. The coding sequence is tagged at the N-terminal end with Tag:HA.
15-aa extension: CSHSCTVPVTQECLF
Frameshift at stop codon; extends beyond original stop.
The expression of Hsap\TNPO3mut.UAS.Tag:HA under the control of Scer\GAL4Mhc.PW leads to decreased adult climbing and flight ability. Expression under the control of either Scer\GAL4Mhc.PW or Scer\GAL4Toll-6-D42 leads to a progressive decrease in adult indirect flight muscle area and to thinner abdominal segment muscle fibers in 15-days old fibers. Expression under the control of Scer\GAL4Mhc.PW leads to an upheld wing phenotype from day 7 post eclosion. Expression under the control of Scer\GAL4Toll-6-D42 leads to adults with a wrinkled wing phenotype.