(G) Representative western blot of immunoprecipitated (IP) HTT (ab-MAB2166) and HTT pS13 (ab-CHDI-90001039-1) after lentivirus (LV)-mediated overexpression of TBK1 or TBK1 KD for 72 hour in rat primary striatal neuronal cells. (H) Quantification of the fold changes in the HTT pS13 ratio to total HTT compared to those of the kinase-dead mutant from the experiments like in G (n=3). 