Mastoparan, a tetradecapeptide which is a component of wasp venom, stimulates release of prolactin from cultured rat anterior pituitary cells.
Mastoparan, a tetrapeptide, is a component of wasp venom that activates Gi and Go, and has been shown to increase the production of arachidonic acid catalyzed by PLA2 in porcine pancreas and bee venom.