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Staining of PBMCs from HIV-1-infected or uninfected individuals with either the A24/Nef138-β2m (SeV-made) tetramer or the A24/β2m/Nef138-10 (E. coli-made) tetramer. A total of 106 PBMCs from HIV-1-infected individuals (HLA-A2/24, B35/52) (A) or non-HIV-1-infected individuals (HLA-A24, B7/35) (B) were stained with the A24/Nef138-β2m tetramer (left panels) or the A24/β2m/Nef138-10 tetramer (right panels).
