Abstract
Four missense mutations have been reported to be associated with the typical, adult form of carnitine palmitoyltransferase II (CPT II) deficiency: Three amino acid substitutions (R631C, P50H and D553N) appear to be rare, while the S113L mutation was found to be common in a group of European patients with CPT II deficiency.
We analyzed genomic DNA from 20 American patients with recurrent episodes of myoglobinuria as well as DNA from 10 normal controls in order to determine the frequency of the reported missense mutations in our patient population.
The three previously described rare mutations were not found in our group of patients. The S113L mutation was found in 19 of our patients: 5 patients were homozygous, 14 patients were heterozygous.
Given the high frequency of this mutation in our series of patients we concluded that the clinical diagnosis of CPT II deficiency can be confirmed by a ‘blood test’ without resorting to a muscle biopsy. (Mol Cell Biochem 174: 237–239, 1997)
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© 1997 Springer Science+Business Media Dordrecht
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Kaufmann, P., El-Schahawi, M., DiMauro, S. (1997). Carnitine palmitoyltransferase II deficiency: Diagnosis by molecular analysis of blood. In: Gellerich, F.N., Zierz, S. (eds) Detection of Mitochondrial Diseases. Developments in Molecular and Cellular Biochemistry, vol 21. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-6111-8_37
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DOI: https://doi.org/10.1007/978-1-4615-6111-8_37
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