Summary
In man the closely linked genes for the apolipoproteins A-I and C-III have been assigned to chromosome 11. Linkage studies performed in a Norwegian family with a mutant apoA-I gene established a close linkage between the loci for apoA-I and apoA-IV. For both sexes combined, the peak lod score was 3.01 at a recombination fraction of θ=0.00. Thus this study adds the locus of apoA-IV to the previously reported apolipoprotein gene cluster on chromosome 11. The previously unidentified polymorphic serum protein, USP1, is by immunochemical and electrophoretical methods identified as apoA-IV. ApoA-IV typing should be a valuable tool in elucidating the genomic organization of chromosome 11.
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Schamaun, O., Olaisen, B., Mevåg, B. et al. The two apolipoprotein loci apoA-I and apoA-IV are closely linked in man. Hum Genet 68, 181–184 (1984). https://doi.org/10.1007/BF00279311
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DOI: https://doi.org/10.1007/BF00279311