SCARB1 and infection: This is also the first reportshowing that HCV can enter non-human cells upon expression of HCV receptors.Importantly, we show that the selective lipid transfer properties of human SR-BIwere fully functional in such heterologous cell backgrounds, allowing us to directlyaddress the role of specific residues of SR-BI ecto- and endo-domains inHDL-mediated infection-enhancement.