Ceroid Lipofuscinosis, Neuronal, 2, also known as jansky-bielschowsky disease, is related to ceroid lipofuscinosis, neuronal, 6a and aspartylglucosaminuria, and has symptoms including ataxia, myoclonus and seizures. An important gene associated with Ceroid Lipofuscinosis, Neuronal, 2 is TPP1 (Tripeptidyl Peptidase 1). Affiliated tissues include eye and brain, and related phenotypes are seizure and ataxia