(G) Western blot performed to examine Itpr1 levels in whole brain from wild-type, Itpr1wt/Δ18, and Itpr1Δ18/Δ18 mice; this clearly shows a reduction of Itpr1 in brain tissue from Itpr1wt/Δ18 mice and a greater reduction of Itpr1 in Itpr1Δ18/Δ18 mice.