Figure 5From: Anti-HIV-1 activity of anionic polymers: a comparative study of candidate microbicidesgp41 six-helix bundle induction in HIV-1 BaL by distinct anionic polymers respresenting candidate microbicides. Purified HIV-1 BaL (2.5 × 109 particles in Dulbecco's modified Eagle medium {DMEM} + 20% fetal bovine serum {FBS}) were precipitated with 3% PEG and subsequently treated as described in the legend for Fig. 4.Back to article page