CALYNeuron-specific vesicular protein calcyon is a protein that in humans is encoded by the CALY gene. Its alternative name is Calcyon.FunctionThe protein encoded by this gene is a type II single transmembrane protein. It is required for maximal stimulated calcium release after stimulation of purinergic or muscarinic but not beta-adrenergic receptors. The encoded protein interacts with dopamine [receptor D1] and may interact with other DA receptor subtypes and/or GPCRs.Interactions SPARCL1