A chronic GM2 gangliosidosis variant with a HEXA splicing defect: quantitation of HEXA mRNAs in normal and mutant fibroblasts.

Abstract excerpt

Over 72 mutations have been identified in the HEXA gene of which only four (T538C, A590C, G805A, and C1495T) are believed to cause a chronic form of Tay-Sachs disease (TSD). We identified a novel HEXA mutation (IVS7, -7 G-->A) leading to chronic TSD in a Canadian patient of English ancestry. The second allele in this patient was the exon 11 4-bp insertion mutation (/1277TATC), which is the most frequent TSD...

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