There were no significant differences in total TG activity between the different infections [AAV‐CaM‐peptide + GFP, AAV‐scram‐CaM‐peptide + GFP or AAV‐GFP (control)] in either non‐htt‐SHSY5Y cells or SHSY5Y‐htt‐N63‐148Q cells (Figure 5A). This evidence concerns the gene HTT and infection.