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  • Title: Molecular analysis of aldolase B genes in hereditary fructose intolerance.
    Author: Cross NC, de Franchis R, Sebastio G, Dazzo C, Tolan DR, Gregori C, Odievre M, Vidailhet M, Romano V, Mascali G.
    Journal: Lancet; 1990 Feb 10; 335(8685):306-9. PubMed ID: 1967768.
    Abstract:
    The molecular basis of hereditary fructose intolerance (HFI) was studied in 50 subjects (41 pedigrees, 82 apparently independent mutant alleles of aldolase B) by direct analysis of aldolase B genes amplified by means of the polymerase chain reaction. The mutation A149P (ala 149----pro) was found in 67% of alleles but was significantly more common in patients from northern than from southern Europe. Two other point mutations of aldolase B were identified. A174D (C----A; ala 174----asp) was found in subjects from Italy, Switzerland, and Yugoslavia (overall frequency 16%) but not in those from the United Kingdom, France, or the United States. L288 delta C carried a single base-pair deletion causing frameshift at codon 288 and was restricted to Sicilian subjects. By testing for these mutations in amplified DNA with a limited panel of allele-specific oligonucleotides, more than 95% of HFI patients will be susceptible to genetic diagnosis.
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