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Examples of direct sequence analysis of the SLC26A4 gene. Representative results of H723R and the IVS15 + 5G > A mutation analysis are shown. Genomic sequences of the SLC26A4 gene in normal individuals (A), (B). A compound heterozygous mutation for IVS15 + 5G > A/H723R (C), (D). A homozygous mutation for H723R (E). A homozygous substitution of IVS15 + 5G > A (F). The arrows indicate the variant nucleotide.
