Shows mast cell degranulation and antimicrobial activities against the Gram-negative bacteria E.coli ATCC 25922 (MIC=6.0 ug/ml), the Gram-positive bacteria S.aureus ATCC 2592 (MIC=3.0 ug/ml) and the fungus C.albicans ATCC 2002 (MIC=12 ug/ml). Expressed by the venom gland. Belongs to the MCD family. Mastoparan subfamily.