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. 1990 Dec;47(6):1002–1007.

A termination mutant prevalent in Norwegian haplotype 7 phenylketonuria genes.

J Apold 1, H G Eiken 1, E Odland 1, A Fredriksen 1, A Bakken 1, J B Lorens 1, H Boman 1
PMCID: PMC1683913  PMID: 1978553

Abstract

RFLPs in the phenylalanine hydroxylase (PAH) gene locus were determined in 47 Norwegian nuclear families that had at least one child with phenylketonuria (PKU). The PKU haplotype distribution differed somewhat from that of other European populations. Mutant haplotype 7 is relatively rare in other populations but constituted 20% of all mutant haplotypes in Norway. In 14 of the 17 mutant haplotypes 7, a previously unreported deletion of the BamHI restriction site in exon 7 of the PAH gene was observed. The abrogation of the BamHI site was shown to be due to a G-to-T transversion, changing Gly 272 to Ter 272 in exon 7 of the gene, thus directly identifying the PKU mutation. Unlike the families of the other PKU patients, the families with this mutation clustered along the southeastern coast of Norway, suggesting a founder effect for this mutation.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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