ased. CbCln3+/+ cells are negative for the Purkinje neuron marker calbindin (e). CbCln3+/Δex7/8 and CbCln3Δex7/8/Δex7/8 cell lines exhibited identical marker immunofluorescence results. a, b) 20 × magnification; c, d, e) 40 × magnification. Homozygou