SDCBP and viral infectious disease: Accordingly, Synt-ΔN (a mutant lacking the first 100 AA), Synt-Y4F, and Synt-S6A mutants were unable to restore early steps of viral infection when reexpressed in syntenin-1 depleted cells (Fig. 9e,f, Supplementary Fig. S6 and controls in Supplementary Fig. S7).