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Cerebrotendinous xanthomatosis (CTX) is a hereditary disorder, which is inherited as an autosomally recessive disease, causing production of cholesterol and cholestanol xanthomas and mental retardation. The disease is caused by mutations in the gene for sterol 27-hydroxylase (CYP27A1). The only CTX
We present the first case of triplets with cerebrotendinous xanthomatosis (CTX). A C-to-T base change identified in the genomic DNA and cDNA encoding the sterol 27-hydroxylase led to replacement of arginine by tryptophan at position 441 (Arg441Trp) in the triplets. The triplets were homozygous and
We report the characterization of eight mutations of sterol 27-hydroxylase gene (CYP27) in five Italian patients with cerebrotendinous xanthomatosis, who were found to be compound heterozygotes. Four mutations (C --> T at nt 45 of exon 4, G(+1) --> A in intron 6, G(+5) --> T in intron 7, and G(-1)
Cerebrotendinous xanthomatosis (CTX) is a rare autosomal recessive disorder of lipid storage with prominent neurologic features. The disease is associated with mutations in CYP27, which encodes mitochondrial sterol 27-hydroxylase, an enzyme that catalyzes the oxidation of sterol intermediates during
The isolation, purification, and cloning of the mitochondrial P450 enzyme catalyzing not only the 27-hydroxylation of 5 beta-cholestane-3 alpha, 7 alpha-diol and cholestane-3 alpha, 7 alpha, 12 alpha-triol, but also the 25-hydroxylation of vitamin D3 are reviewed. The sterol hydroxylase was shown to