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. 1990 Nov;47(5):802–807.

Chromosomal localization of the human alpha-L-iduronidase gene (IDUA) to 4p16.3.

H S Scott 1, L J Ashton 1, H J Eyre 1, E Baker 1, D A Brooks 1, D F Callen 1, G R Sutherland 1, C P Morris 1, J J Hopwood 1
PMCID: PMC1683689  PMID: 2220820

Abstract

The lysosomal hydrolase alpha-L-iduronidase (IDUA) is one of the enzymes in the metabolic pathway responsible for the degradation of the glycosaminoglycans heparan sulfate and dermatan sulfate. In humans a deficiency of IDUA leads to the accumulation of glycosaminoglycans, resulting in the lysosomal storage disorder mucopolysaccharidosis type I. A genomic subclone and a cDNA clone encoding human IDUA were used to localize IDUA to chromosome 4p16.3 by in situ hybridization and this was confirmed by Southern blot analysis. This localization is different from that of a previous report mapping IDUA to chromosome 22 and places the gene for IDUA in the same region of chromosome 4 as the Huntington disease gene. Measurement of expressed human IDUA activity in human-mouse hybrid cell lines confirmed that IDUA is on chromosome 4.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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