Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
CD4-independent virus infection. Luciferase reporter viruses were made bearing the envelope proteins of the listed viruses and used to infect 293T cells transfected with CD4 and CCR5 as indicated. Values were normalized by expressing as the percentage of the signal when CD4 and CCR5 are coexpressed and are the mean of three or four independent experiments with standard error bars shown.
