Figure 2.

Biochemical changes of BaL.01 pseudo-viruses caused by MβCD treatment: (A) change in HIV-1 envelope cholesterol content normalized to untreated envelope following MβCD treatment (cholesterol was measured fluorometrically with Amplex Red (n = 2, mean ± SD)), and (B) quantification of HIV-1 spike proteins that are retained after MβCD treatment (gp120 (black squares) was assayed from the supernatant and retained gp41 (red circles) was assayed from the virus pellet fraction (gp120: n = 2, gp41: n = 4, mean ± SD)).