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  • Title: Characterization by yeast artificial chromosome cloning of the linked apolipoprotein(a) and plasminogen genes and identification of the apolipoprotein(a) 5' flanking region.
    Author: Malgaretti N, Acquati F, Magnaghi P, Bruno L, Pontoglio M, Rocchi M, Saccone S, Della Valle G, D'Urso M, LePaslier D.
    Journal: Proc Natl Acad Sci U S A; 1992 Dec 01; 89(23):11584-8. PubMed ID: 1454851.
    Abstract:
    The apoprotein(a) [apo(a)] gene encodes a protein component of the circulating lipoprotein(a) [Lp(a)]. The apo(a) gene is highly homologous to the plasminogen gene. It encodes one of the most polymorphic human proteins, due to variability in the number of repetitions of structures called kringles. In addition, Lp(a) levels vary among individuals by more than two orders of magnitude, the high levels being highly correlated with predisposition to early atherosclerotic disease. To better understand the genetics and function of the apo(a) gene, we have cloned in yeast artificial chromosome vectors DNA fragments comprising the linked apo(a) and plasminogen genes and other members of the plasminogen family. By a combination of pulsed-field gel electrophoresis and genome walking experiments, we have identified the 5' portion and flanking regions of the apo(a) gene.
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