Document Detail


Chronic GM2 gangliosidosis type Sandhoff associated with a novel missense HEXB gene mutation causing a double pathogenic effect.
MedLine Citation:
PMID:  17251047     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
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.
Authors:
Massimo Santoro; Anna Modoni; Mario Sabatelli; Francesca Madia; Fiorella Piemonte; Giulia Tozzi; Enzo Ricci; Pietro A Tonali; Gabriella Silvestri
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Publication Detail:
Type:  Journal Article     Date:  2007-01-23
Journal Detail:
Title:  Molecular genetics and metabolism     Volume:  91     ISSN:  1096-7192     ISO Abbreviation:  Mol. Genet. Metab.     Publication Date:  2007 May 
Date Detail:
Created Date:  2007-04-13     Completed Date:  2007-07-25     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  9805456     Medline TA:  Mol Genet Metab     Country:  United States    
Other Details:
Languages:  eng     Pagination:  111-4     Citation Subset:  IM    
Affiliation:
Institute of Neurology, Department of Neuroscience, Catholic University of Sacred Heart, L go A Gemelli 8, Rome, Italy.
Data Bank Information
Bank Name/Acc. No.:
OMIM/268800; RefSeq/NM_000521
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MeSH Terms
Descriptor/Qualifier:
Amino Acid Sequence
Exons
Female
Hexosaminidase B
Humans
Male
Molecular Sequence Data
Mutation, Missense*
Pedigree
RNA, Messenger / metabolism
Sandhoff Disease / enzymology*,  genetics*,  metabolism
beta-N-Acetylhexosaminidases / genetics*,  metabolism
Chemical
Reg. No./Substance:
0/RNA, Messenger; EC 3.2.1.52/Hexosaminidase B; EC 3.2.1.52/beta-N-Acetylhexosaminidases

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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