A peptide with antimicrobial properties; induces lysis of mammalian cells (25 μg/ml); inhibits growth of E. faecalis (ED50 = 100 nM) and clinical isolates of P. aeruginosa (MIC90 = 4 μM); binds to recombinant HIV-1 gp120 and human CD4 (Kds = 52.8 and 34.9 and nM, respectively); binds to recombinant, immobilized human surfactant protein D (SP-D; Kd = 55.7 nM) and neutralizes infection of MDCK cells by IAV