Figure 2.
The effects of pH value in the reaction system on the percentages of modified residues and anti-HIV-1 activity of SU-, ML-, and HP-modified OVA. The pH value of reaction systems is correlated with the percentages of modified lysine residues (A) and arginine residues (B) in the chemically modified OVAs and with their anti-HIV-1IIIB activity (C) and their anti-HIV-1BaL activity (D). Each sample was tested in triplicate, the experiment was repeated twice, and the data are presented in means ± SD.