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Hum Mutat. 2001;17(1):77-8.

Novel mutations in the GALK1 gene in patients with galactokinase deficiency.

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  • 1Centre for Human Genetics, Edith Cowan University, Perth, Western Australia.

Abstract

Galactokinase deficiency is an inborn error of galactose metabolism whose major clinical manifestation is the development of cataracts during the first months of life. Only 20 mutations have been reported to date and understanding of the functionally important domains of the galactokinase protein is still limited. Here we report four novel mutations in GALK1 that were identified in two unrelated patients with galactokinase deficiency. Three of these were amino acid substitutions: 1569C-->T in exon 2 (R68C); 7093C-->T in exon 6 (T288M) and 7538G-->C in exon 8 (A384P). In addition, a single base-pair deletion was found in exon 5 (2833delC), predicted to result in a shift of the reading frame and a premature termination codon at position 263. Some differences with the GALK1 sequence deposited in Genbank are also reported.

Copyright 2001 Wiley-Liss, Inc.

PMID:
11139256
[PubMed - indexed for MEDLINE]
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