FlyBase curator comment: this entry is used to capture phenotypic information when the particular allele (or allele combination) used by the author could not be determined but the context of the experiment suggests that the phenotype being described is some kind of loss of function.
At 33[o]C, resting Ca[2+] concentration is significantly elevated in mutant nerve terminals compared to controls, revealing a profound reduction in the ability to maintain calcium homeostasis. At both 37 and 29[o]C, resting Ca[2+] concentration is above 200nM, yet calcium responses are maintained.