HIV-1 Integrase protein.The protein is a non-glycosylated polypeptide chaincontaining the HIV-1 immunodominant regions from thepol protein (integrase).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.The human immunodeficiency virus (HIV) integrase (IN),one of the three virally encoded enzymes required forHIV-1 replication, must covalently join the viral cDNA intoa host chromosome for productive HIV infection.The protein contains a GST-Tag.