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    Biochim Biophys Acta. 1991 Oct 21;1097(3):183-6.

    A second transthyretin mutation at position 33 (Leu/Phe) associated with familial amyloidotic polyneuropathy.

    Source

    Department of Medicine, Boston University School of Medicine, MA 02118.

    Abstract

    Genomic DNA was isolated from peripheral blood lymphocytes of a patient with familial amyloidotic polyneuropathy (FAP) and the transthyretin (TTR) gene examined for sequence mutations. Polymerase chain reaction was used to asymmetrically amplify the TTR exons. Direct DNA sequencing of the PCR product revealed a C for T mutation at the first base of codon 33 located in exon 2 of one transthyretin gene. This resulted in a substitution of leucine for phenylalanine at position 33. Exons 3 and 4 were examined and found to be normal. The mutation creates a novel DdeI restriction site at the point of the mutation.

    PMID:
    1932142
    [PubMed - indexed for MEDLINE]

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