Two novel mutations in the homogentisate-1,2-dioxygenase gene identified in Chinese Han Child with Alkaptonuria
Journal of Pediatric Endocrinology and Metabolism, ISSN: 2191-0251, Vol: 28, Issue: 3-4, Page: 453-456
2015
- 2Citations
- 1Captures
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Metrics Details
- Citations2
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Article Description
Alkaptonuria (AKU) is an autosomal recessive disorder of tyrosine metabolism, which is caused by a defect in the enzyme homogentisate 1,2-dioxygenase (HGD) with subsequent accumulation of homogentisic acid. Presently, more than 100 HGD mutations have been identified as the cause of the inborn error of metabolism across different populations worldwide. However, the HGD mutation is very rarely reported in Asia, especially China. In this study, we present mutational analyses of HGD gene in one Chinese Han child with AKU, which had been identified by gas chromatography-mass spectrometry detection of organic acids in urine samples. PCR and DNA sequencing of the entire coding region as well as exon-intron boundaries of HGD have been performed. Two novel mutations were identified in the HGD gene in this AKU case, a frameshift mutation of c.115delG in exon 3 and the splicing mutation of IVS5+3 A>C, a donor splice site of the exon 5 and exon-intron junction. The identification of these mutations in this study further expands the spectrum of known HGD gene mutations and contributes to prenatal molecular diagnosis of AKU.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84924913014&origin=inward; http://dx.doi.org/10.1515/jpem-2014-0122; http://www.ncbi.nlm.nih.gov/pubmed/25153563; https://www.degruyter.com/document/doi/10.1515/jpem-2014-0122/html; http://www.degruyter.com/view/j/jpem.ahead-of-print/jpem-2014-0122/jpem-2014-0122.xml; https://www.degruyter.com/view/j/jpem.ahead-of-print/jpem-2014-0122/jpem-2014-0122.xml
Walter de Gruyter GmbH
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