The locus for apolipoprotein E (apoE) is linked to the complement component C3 (C3) locus on chromosome 19 in man |
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| Authors: | B. Olaisen P. Teisberg T. Gedde-Dahl Jr. |
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| Affiliation: | (1) Institute of Forensic Medicine, University of Oslo, Rikshospitalet, Oslo 1, Norway;(2) Medical Department, Rikshospitalet, Oslo 1, Norway;(3) Genetics Laboratory, NHIK Radiumhospitalet, Oslo 3, Norway;(4) Rettsmedisinsk institutt, Rikshospitalet, Olso 1, Norway |
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| Abstract: | Summary By two-dimensional electrophoresis of human serum a genetically determined polymorphism of apolipoprotein E (apoE) can be demonstrated. Three alleles occur with appreciable frequency in Caucasian populations. In the present study the segregation of apoE and complement component C3 (C3) types in material from Norwegian families has been studied. Linkage has convincingly been demonstrated between the two loci with a lod score of 3.00 in males at a recombination fraction of 13%. As it is known that the C3 locus is situated on chromosome 19 in man, apoE can be located to this specific chromosome. Positive linkage data do not, to our knowledge, at present exist with regard to other apolipoproteins. |
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