Analysis of 7 polymorphic markers at chromosome 11q22-23 in 35 ataxia telangiectasia families; further evidence of linkage
McConville, C. M. ; Woods, C. G. ; Farrall, M. ; Metcalfe, J. A. ; Taylor, A. M. R.
Springer
Published 1990
Springer
Published 1990
| ISSN: |
1432-1203
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|---|---|
| Source: |
Springer Online Journal Archives 1860-2000
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| Topics: |
Biology
Medicine
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| Notes: |
Summary Ataxia telangiectasia (A-T) is an autosomal recessive disorder characterised by progressive neurological degeneration, oculocutaneous telangiectasia, immunodeficiency and a high incidence of lymphoid tumours. A prerequisite to gaining a complete understanding of the basic defect that results in these features is the localization of the gene(s) involved. We report here a linkage analysis using seven polymorphic markers, which map to 11q22–23, on a sample of 35 consecutively obtained families from the British Isles showing this disorder. In a pairwise analysis, the strongest support for linkage was a lod score of 4.01 at zero recombination from Thy-1. This result supports a previous report showing linkage of the A-T gene to 11q22–23. We have also obtained evidence in a multipoint analysis for a more centromeric A-T-linked locus in the region between YNB 3.12/CJ52.208 and 2-7-1D6. This observation is also supported by inspection of the haplotypes of selected recombinants.
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| Type of Medium: |
Electronic Resource
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| URL: |