ERVW-1 and infection: Single-cycle infection performed with another pseudotyped virus, HIV-1 \documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{upgreek}\usepackage{mathrsfs}\setlength{\oddsidemargin}{-69pt}\begin{document}$\Delta$\end{document}Env-EGFP/VSVG, which expresses an EGFP reporter, confirmed the reduction of HIV-1 infection in the S207A KI cells (Supplementary Figure S1E).