ACE2 and infection: While both PS receptors enhanced ACE2-dependent virus infection, TIM-1 enhanced recombinant replication-competent VSV that encoded SARS-CoV-2 spike (rVSV/Spike) [20] infection over a wider range of ACE2 concentrations than AXL did, with AXL consistently enhancing infection only at 250 ng of transfected ACE2 plasmid (Figs 1B, 1C and S1C).