Apolipoprotein(a) [apo(a)], the glycoprotein associated with the lipoprotein(a) [Lp(a)] subfraction of plasma lipoproteins, has been shown to exhibit heritable molecular weight isoforms ranging from 400-700 kDa. Increased serum concentrations of Lp(a) correlate positively with the risk of atheroscle
The gene for the Lp(a)-specific glycoprotein is closely linked to the gene for plasminogen on chromosome 6
✍ Scribed by Gisela Lindahl; Elisabeth Gersdorf; Han Jürgen Menzel; Christoph Duba; Hartmut Cleve; Steve Humphries; Gerd Utermann
- Publisher
- Springer
- Year
- 1989
- Tongue
- English
- Weight
- 403 KB
- Volume
- 81
- Category
- Article
- ISSN
- 0340-6717
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✦ Synopsis
We have studied the segregation of the Lp(a) glycoprotein phenotypes and of the plasminogen (PLG) polymorphism in three two-generation families. The inheritance of the Lp(a) gene was followed using the Lp(a) glycoprotein size polymorphism and that of the plasminogen gene, using protein and DNA polymorphisms. In the three families studied, no recombination was observed in 18 meioses. The lod score for linkage between the Lp(a) glycoprotein locus and the plasminogen locus in these families is greater than 5.0 at a recombination fraction of theta = 0. Our results show that the structural gene for the Lp(a) glycoprotein is closely linked to the gene for plasminogen on chromosome 6.
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