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Linkage analysis in von Willebrand disease

Linkage analysis in von Willebrand disease We studied a 3-generation kindred to determine whether the gene responsible for one form of von Willebrand disease (vWD) is linked to 1) the HLA locus, or 2) a polymorphic locus for a serum enzyme or red cell antigen. HLA haplotypes were determined in 12 affected family members, in 10 cases by direct analysis and in 2 cases by deduction. Seven of 12 affected individuals were A2, B7, as compared to 0 of 9 unaffected. However, the maximum lod score was only 0.41 at a recombination frequency of 0.2. Of the 17 serum red cell and plasma protein markers studied, 5 (Kell, ADA, AK1, BF, GC) did not segregate, and 12 (ABO, Rh, JK, Fy, P, PGM1, ACPI, ESD, GLOl, MN, HP, GPT) gave lod scores less than +1.0. We conclude that there is no strong evidence for linkage between the locus for vWD and any of the markers studied. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Clinical Genetics Wiley

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References (8)

Publisher
Wiley
Copyright
1983 Blackwell Munksgaard
ISSN
0009-9163
eISSN
1399-0004
DOI
10.1111/j.1399-0004.1983.tb00099.x
Publisher site
See Article on Publisher Site

Abstract

We studied a 3-generation kindred to determine whether the gene responsible for one form of von Willebrand disease (vWD) is linked to 1) the HLA locus, or 2) a polymorphic locus for a serum enzyme or red cell antigen. HLA haplotypes were determined in 12 affected family members, in 10 cases by direct analysis and in 2 cases by deduction. Seven of 12 affected individuals were A2, B7, as compared to 0 of 9 unaffected. However, the maximum lod score was only 0.41 at a recombination frequency of 0.2. Of the 17 serum red cell and plasma protein markers studied, 5 (Kell, ADA, AK1, BF, GC) did not segregate, and 12 (ABO, Rh, JK, Fy, P, PGM1, ACPI, ESD, GLOl, MN, HP, GPT) gave lod scores less than +1.0. We conclude that there is no strong evidence for linkage between the locus for vWD and any of the markers studied.

Journal

Clinical GeneticsWiley

Published: Dec 1, 1983

Keywords: HLA; linkage analysis; von Willebrand disease

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