PPT1 and infantile neuronal ceroid lipofuscinosis: To gain insights into the molecular pathogenesis of the various NCLs we have recently generated mouse models of the Infantile Neuronal Ceroid Lipofuscinosis (INCL, CLN1) and the Finnish variant form of Late Infantile Neuronal Ceroid Lipofuscinosis (vLINCLFin, CLN5).