Abstract:
:We have recently described the identification of a second IDS locus (IDS-2) located within 90 kb telomeric of the IDS gene (Bondeson et al. submitted). Here, we show that this region is involved in a recombination event with the IDS gene in about 13% of patients with the Hunter syndrome. Analysis of the resulting rearrangement at the molecular level showed that these patients have suffered a recombination event that results in a disruption of the IDS gene in intron 7 with an inversion of the intervening DNA. Interestingly, all of the six cases with a similar type of rearrangement showed recombination between intron 7 of the IDS gene and sequences close to exon 3 at the IDS-2 locus implying that these regions are hot spots for recombination. Analysis by nucleotide sequencing showed that the inversion is caused by recombination between homologous sequences present in the IDS gene and the IDS-2 locus. No detectable deletions or insertions were observed as a result of the recombination event. The results in this study have practical implications for diagnosis of the Hunter syndrome.
journal_name
Hum Mol Genetjournal_title
Human molecular geneticsauthors
Bondeson ML,Dahl N,Malmgren H,Kleijer WJ,Tönnesen T,Carlberg BM,Pettersson Udoi
10.1093/hmg/4.4.615subject
Has Abstractpub_date
1995-04-01 00:00:00pages
615-21issue
4eissn
0964-6906issn
1460-2083journal_volume
4pub_type
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