The neuronal ceroid lipofuscinoses (NCLs, Batten Disease) are a group of lysosomal storage disorders caused by mutations in known and unknown proteins with different cellular locations. Mutations in the CLN6 gene cause a type of variant late infantile NCL (vLINCL). The CLN6 protein is located in the ER and how mutations in CLN6 cause accumulation of storage material in the lysosome is unclear. ...