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    Hum Genet. 1991 Aug;87(4):389-93.

    The identification of two mis-sense mutations at the PAH gene locus in a Turkish patient with phenylketonuria.

    Source

    Universitäts-Kinderklinik, Heidelberg, Federal Republic of Germany.

    Abstract

    DNA sequence analysis of the 13 exons and intron/exon boundaries of the phenylalanine hydroxylase (PAH) gene has detected two base transitions, resulting in mis-sense mutations, in the genomic DNA of a Turkish patient (E1) with phenylketonuria (PKU). The Leu48----Ser amino acid substitution was associated with the mutant haplotype 3 allele and the Glu221----Gly amino acid substitution with the mutant haplotype 4 allele of this family. Allele-specific oligonucleotide (ASO) dot-blot analysis subsequently detected the Leu48----Ser mutation in the haplotype 4 PKU alleles of nine (18.8%) of the 48 unrelated Caucasian PKU families investigated. This mutation results in mild PKU in the homozygous state. The Glu221----Gly mutation has only been detected within patient E1 and his father.

    PMID:
    1679030
    [PubMed - indexed for MEDLINE]

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