Peptide BmKn2: has strong antibacterial activity against Gram-positive bacteria S.aureus, M.luteus, B.subtilis, and Gram-negative bacteria E.coli, P.aeruginosa and N.gonorrhoeae. Also shows low activity against HIV-1 PV. Mutant Kn2-7: shows antiviral activities against HIV-1 (EC(50)=2.76 ug/ml). This activity is correlated with a direct interaction between the mutant and HIV-1 envelope. Forms an alpha-helical membrane channel in the prey. Expressed by the venom gland. Belongs to the non-disulfide-bridged peptide (NDBP) superfamily. Short antimicrobial peptide (group 4) family. Studies from PubMed:24184420 describe a peptide with an Arg-30 instead of an Asn-30.