HIV-gp41-Antigenic Peptide 5 (AA: Arg-Val-Thr-Ala-Ile-Glu-Lys-Tyr-Leu-Gln-Asp-Gln-Ala-Arg-Leu-Asn-Ser-Trp-Gly-Cys-Ala-Phe-Arg-Gln-Val-Cys-His-Thr-Thr-Val-Pro-Trp-Val-Asn-Asp-Ser-NH2 (Disulfide bridge: Cys20-Cys26)) (MW: 4190.77)