A multi-pronged approach reveals that ion transport peptide neuropeptide acts through the guanylate cyclase receptor Gyc76C to coordinate osmotic and metabolic homeostasis across multiple tissues in Drosophila.
In Toxoplasma gondii, SERCA-driven ER Ca²⁺ uptake sustains homeostasis and enables redistribution to mitochondria and other organelles, highlighting the ER as a central hub in parasite Ca²⁺ signaling and infection.