FIG 2.

Integrins can induce infection of CHO cells expressing CR2 and gHgL with a gH-null virus. CHO cells were transfected with a plasmid expressing CR2 and empty vector or plasmids expressing CR2 and gHgL. Twenty-four h later, cells were infected with Akata-gH-null virus. Virus was bound for 2 h, and cells and virus then were overlaid with soluble αvβ8 as indicated. Two hours later additional medium was added, and GFP expression was determined visually at 3 days. The errors bars are the standard deviations from 6 experiments.