RNA expression in fly thoraxes of 4 WT, 4 dCanA1 and 4 dCanA-14F calcineurin mutant fly lines. Drosophila melanogaster

Canonical protein phosphatase 3 (Ppp3) / calcineurin signaling is central to numerous physiological processes. Here we provide evidence that calcineurin plays a pivotal role in controlling systemic energy and body weight homeostasis. Knockdown of calcineurin in Drosophila melanogaster led to a decrease in body weight, and energy stores, and increased energy expenditure. D. melanogaster piggyBac transposon insertion mutants (Thibault et al., 2004) (PBac{WH}CanA1[f01787] (Calcineurin A1) and PBac{WH}CanA-14F[f02374] (CanA at 14-F)) and the isogenic wildtype w1118 strain (BL-6326) were ordered from Exelixis Drosophila Stock Collection at Harvard Medical School. Overall design: RNA was isolated from the thorax of 50 flies per sample. Whole genome tiling gene arrays were utilized to reveal distinctly deregulated gene patterns that appeared in both mutants (n=4, respectively) as compared to the WT controls (n=4).