AIDS-211975 AIDS211975 Human .beta.-defensin 2 NH2-Gly-Ile-Ile-Asn-Thr-Leu-Gln-Lys-Tyr-Tyr-Cys(x1)-Arg-Val-Arg-Gly-Gly-Arg-Cys(x3)-Ala-Val-Leu-Ser-Cys(x2)-Leu-Pro-Lys-Glu-Glu-Gln-Ile-Gly-Lys-Cys(x3)-Ser-Thr-Arg-Gly-Arg-Lys-Cys(x1)-Cys(x2)-Arg-Arg-Lys-Lys-COOH