Apolipoprotein gene cluster on chromosome 19. Definite localization of the APOC2 gene and the polymorphic Hpa I site associated with type III hyperlipoproteinemia.
Recently, using an APOE cDNA probe, we discovered an Hpa I restriction fragment length polymorphism (RFLP) that appeared to be strongly associated with the expression of type III hyperlipoproteinemia (Klasen et al. 1987). In the present report it is shown that the same Hpa I RFLP can be revealed with both the APOC1 and APOC2 cDNA probes. This enabled us to localize the polymorphic Hpa I site between the APOE and APOC1 genes and to localize the APOC2 gene approximately 22 kb 3' of the APOC1 pseudogene on chromosome 19.
D001053:Apolipoproteins / Q000235:genetics*; D002874:Chromosome Mapping; D002888:Chromosomes, Human, Pair 19; D005819:Genetic Markers; D006801:Humans; D006952:Hyperlipoproteinemia Type III / Q000097:blood / Q000235:genetics*; D005810:Multigene Family; D012150:Polymorphism, Restriction Fragment Length
D001053:Apolipoproteins; D005819:Genetic Markers