s-HIV-1 Oligopeptide-5 sh-Decapeptide-8 SP is a single chain synthetic fusion peptide. The starting gene is synthesized by the fusion of the genes encoding for s-HIV-1 Oligopeptide-5 SP and sh-Decapeptide-8 SP. The fusion peptide contains 21 amino acids which may contain disulfide bonds and/or glycosylation, and consists of the proper sequence of the 20 standard amino acids.