Files in this Data Supplement:

• Tables S1- S2 - Supplementary Table 1: infectivity values of nef⁺ and nef X4- and R5-tropic viruses produced in primary T cells
  Supplementary Table 2: infectivity values of nef⁺ and nef X4- and R5-tropic viruses produced in 293T cells.
  Word document, 27K.
• Fig. S1 - Supplementary Figure S1 shows the flow cytometric analysis of CD4 and coreceptor levels on primary T cells used in this study. Powerpoint document, 41K.
• Legend for Fig. S1 - Legend and Protocol for Supplementary Fig. S1. Word document, 20K.