https://pmc.ncbi.nlm.nih.gov/articles/PMC40860/
TRPC1, a human homolog of a Drosophila store-operated channel - PMC
In many vertebrate and invertebrate cells, inositol 1,4,5-trisphospate production induces a biphasic Ca2+ signal. Mobilization of Ca2+ from internal stores...
a humantrpc1homologdrosophilastore