CLN6 and ceroid lipofuscinosis, neuronal, 6A: To permit a comparison of the effects of the vLINCL mutation, we have now created wild-type, heterozygous, and homozygous CbCln6nclf neuronal precursor cell lines from postnatal Cln6nclf mice [33], which bear a frameshift-producing, single base-pair insertion in the murine Cln6 gene, which is also found in human vLINCL patients [28], [29].