To determine whether there is single cell variation in HIV infection or transcription within cell lines, we measured levels of HIV TAR, LongLTR, Gag, Pol, Nef, PolyA and Tat-Rev at the single cell level and visualized the range in levels across all cells using violin plots (Fig. 3a) and heat maps (Fig. 3b). Here, RBM8A is linked to HIV infectious disease.