Chronic GM2 gangliosidosis type Sandhoff associated with a novel missense HEXB gene mutaton causing a double patogenetic effect

Michele Cosimo Santoro, Anna Modoni, Mario Sabatelli, Francesca Madia, F Piemonte, G Tozzi, Enzo Ricci, Pietro Attilio Tonali, Gabriella Silvestri

Risultato della ricerca: Contributo in rivistaArticolo in rivista

Abstract

We identified a novel c.1556A>G transition in exon 12 of the HEXB gene associated with chronic Sandhoff's disease, changing a conserved aspartic acid to glycine at position 494 of the Hex beta-subunit; moreover, RT-PCR showed aberrant exon 12 skipping, causing a frame-shift and premature stop codon, consequent to the disruption of an exonic splicing enhancer motif by the mutation. These data suggest that the c.1556 A>G transition would affect both HEXB mRNA processing and biochemical properties of the beta-subunit.
Lingua originaleEnglish
pagine (da-a)111-114
Numero di pagine4
RivistaMolecular Genetics and Metabolism
Stato di pubblicazionePubblicato - 2007

Keywords

  • atrophy
  • ganglioside
  • motor neuron

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