Abstract
We report a new mutation in the sterol 27-hydroxylase (CYP 27) gene in a Dutch family with cerebrotendinous xanthomatosis: a G-->A transition in the splice donor site in intron 4. This mutation leads to skipping of exon 4, resulting in a loss of 66 amino acids in the CYP 27 enzyme molecule.
MeSH terms
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Adult
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Cholestanetriol 26-Monooxygenase
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Cytochrome P-450 Enzyme System / genetics*
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Exons / genetics
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Female
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Humans
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Male
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Middle Aged
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Netherlands / epidemiology
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Point Mutation*
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Polymorphism, Single-Stranded Conformational
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RNA Splicing / genetics*
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Steroid Hydroxylases / genetics*
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Xanthomatosis, Cerebrotendinous / epidemiology
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Xanthomatosis, Cerebrotendinous / etiology*
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Xanthomatosis, Cerebrotendinous / genetics*
Substances
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Cytochrome P-450 Enzyme System
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Steroid Hydroxylases
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CYP27A1 protein, human
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Cholestanetriol 26-Monooxygenase