Mastoparan x is a mast cell degranulating peptide. Activates G proteins that couple to phospolipase C. May switch from planar to trans-membrane insertion in lipid bi-layers.Hornet: H-Ile-Asn-Trp-Lys-Gly-Ile-Ala-Ala-Met-Ala-Lys-Lys-Leu-Leu-NH2 or H-INWKGIAAMAKKLL-NH2