UASt regulatory sequences drive expression of an inverted repeat.
Elevation of reactive oxygen species levels in nonmyocytic pericardial cells, through expression of CatGD1291 under the control of Scer\GAL4Dot.PK results in an abnormal heart rhythm, with an increased frequency of irregular beats, a broader distribution of HPs and significantly increased the arrhythmia index. There is significant cardiac narrowing, with significant reductions in both the diastolic and systolic diameters of young and old flies compared with control flies.
Expression of CatGD1291 in cardiomyocytes and nonmyocytic pericardial cells, under the control of Scer\GAL4Hand.PA, which results in a significant increase in the level of physiological reactive oxygen species, has no significant effects on any major aspects of heart function, including heart rhythm or heart tube dimensions.
Expression via P{GAL4-tim.E}27 (in the presence of Dcr-2Scer\UAS.cDa) results in a reduction in the 'rhythmic strength' value of flies classified as rhythmic and a prolonged period.
Expression of CatGD1291 under the control of Scer\GAL4Hand.ΔVM.Switch (initiated by feeding flies RU486 during adulthood) results in strong age-dependent heart defects. The heart period (mean time between successive end-diastolic positions) is higher in 60 day old mutant flies compared to age-matched controls.
Adults expressing CatGD1291 under the control of Scer\GAL4elav.PLu (in the presence of Dcr-2Scer\UAS.cDa to increase the efficiency of RNAi) do not show a significant defect in avoidance of noxious temperature (46[o]C) compared to control flies.
Expression under the control of Scer\GAL4Mef2.PR results in grossly normal adult indirect flight muscles.
Expression under the control of Scer\GAL4Mef2.PR results in morphologically wild-type myofibrils in the adult indirect flight muscles.
Expression under the control of Scer\GAL4Mef2.PR results in wild-type sarcomeres in the adult indirect flight muscles.
Expression under the control of Scer\GAL4pnr-MD237 results in loss of bristles on the notum in 10-20% of the Scer\GAL4pnr-MD237 expression domain.
Expression under the control of Scer\GAL4pnr-MD237 results in bristle morphology defects on the notum in 30-40% of the Scer\GAL4pnr-MD237 expression domain.
CatGD1291, Scer\GAL4Ugt36A1.PK has abnormal oxidative stress response phenotype, suppressible by p38bUAS.ORF, Scer\GAL4Ugt36A1.PK
CatGD1291, Scer\GAL4Ugt36A1.PK has adult heart phenotype, suppressible by p38bUAS.ORF, Scer\GAL4Ugt36A1.PK
Expression of p38bScer\UAS.ORF significantly suppresses the cardiac defects associated with expression of CatGD1291 under the control of Scer\GAL4Dot.PK.