By 14 and 24 days post-infection, Pax6 lentivirus-infected H1 hES cells exhibited expression of γA-crystallin, Prox1, and Tdrd7 (Fig. 4A–F), similar to expression of the homologous mouse proteins in G4 and Pax6-GFP mES cells. The gene discussed is PROX1; the disease is infection.