Exhibits stronger antimicrobial activity against the Gram-positive bacteria (S.aureus (IC(50)=4.2 ug/ml)) and fungi (C.albicans (IC(50)=3.0 ug/ml) and P.pastoris (IC(50)=0.5 ug/ml)) than Gram-negative bacteria (E.coli (IC(50)=25 ug/ml)) (PubMed:10473569). Binds to chitin (8.4 uM are required to obtain 50% of binding) (PubMed:10473569). Does not cause hemolysis on sheep erythrocytes (PubMed:10473569). Has no blocking activity on the P-type calcium channel (PubMed:10473569). Has also been shown to weakly inhibit Kv1.2/KCNA2 voltage-gated potassium channels and TRPV1 receptors (PubMed:29483648). Granular hemocytes, small secretory granules. The presence of a 'disulfide through disulfide knot' structurally defines this protein as a knottin.