Figure 1.
SAg binding of IgG SAU to rgp120s from different HIV-1 isolates. Microtiter wells were coated with 50 ng of rgp120s, and Ig binding was revealed by an alkaline phosphatase-labeled anti-IgG conjugate. The results are from one representative experiment. gp120-SF2 ng refers to an unglycosylated form of gp120SF2 that was heat inactivated.