Oxyopinin-2c of 37 aas.  Disrupts biological membranes, particularly those rich in phosphatidylcholine. Has antimicrobial activity against E.coli, B.subtilis and S.aureus, and hemolytic activity against sheep, pig and guinea pig red blood cells. Has insecticidal activity against S.frugiperda ovarian cells by opening non-selective ion channels. Enhances the insecticidal activity of spider venom neurotoxic peptides (Corzo et al. 2002).