Three novel types of splicing aberrations in the tuberous sclerosis TSC2 gene caused by mutations apart from splice consensus sequences11Accession numbers and URLs for data in this article are as follows: Online Mendelian Inheritance in Man: http://www.ncbi.nlm.nih.gov/omim. For TSC1 (MIM 191100) and TSC2 (MIM 191092). The Human Gene Mutation Data Base, Cardiff (HGMD): http://www.uwcm.acuk/uwcm/mg. For TSC1 120735 and for TSC2 120466. TSC Variation Database: http://www.expmed.bwh.harvard.edu/projects/tsc_database. GenBank: http://www.ncbi.nlm.nih.gov/Genbank. For TSC2 cDNA X75621 and TSC2 complete genomic sequence AC005600.