HIV-2 Envelope protein.This antigen is an E. coli-derived recombinant protein thatcomposes all of the reported immunogenic determinantsfound in gp36. The gene encoding this fusion protein wassynthesized using codons optimized for E. coli expressionand doesnt represent a linear HIV-2 envelope sequence.rHIV-2 is a non-glycosylated, 135 amino acid polypeptidechain, having a molecular mass of 16.1 kDa.Recombinant HIV-2 Envelope is purified by proprietarychromatographic technique.HIV belongs to the retrovirus family, distinguished bypossession of a viral reverse transcriptase that transcribesviral RNA into DNA which is integrated into the host-cellgenome.gp36 is the transmembrane envelope protein from HIV-2comparable to gp41 from HIV-1, 100 ug