Whereas the ratio of shCtrl (Amt+) to shCtrl (GFP+) transduced CD4+ T cells remained unchanged 7 days after infection, we found a strong, ~sixfold reduction in the ratio of shCacnb1 (Amt+) to shCtrl (GFP+)-transduced T cells (Supplementary Fig. 2F). This evidence concerns the gene AMT and infection.