The PCR 2.1 TOPO and pcDNA-V5-TOPO plasmids were purchased from Thermo Fisher. The pLNCX2 and pVSV-G plasmids were obtained from Clontech (Mountain View, CA). The pCMVgagpol plasmid which encodes the gagpol gene of the Moloney murine leukemia virus was obtained from Cell Biolabs (San Diego, CA). The pcDNA 3.1 plasmid with a C-terminal HA tag was a kind gift from Dr. Klaus Strebel (NIAID, Bethesda, MD).
Anti-HA and anti-V5 mouse monoclonal antibodies were obtained from Thermo Fisher. Anti-Beta-actin rabbit polyclonal antibody was obtained from Sigma-Aldrich (St. Louis, MO). Goat anti-rabbit-HRP and rabbit anti-mouse-HRP antibodies were purchased from Southern Biotech (Birmingham, AL). G418 sulfate was obtained from Corning (New York, NY).