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.
journal_name
Am J Hum Genetjournal_title
American journal of human geneticsauthors
Scott HS,Ashton LJ,Eyre HJ,Baker E,Brooks DA,Callen DF,Sutherland GR,Morris CP,Hopwood JJsubject
Has Abstractpub_date
1990-11-01 00:00:00pages
802-7issue
5eissn
0002-9297issn
1537-6605journal_volume
47pub_type
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