title: Two DNA restriction fragment length polymorphisms associated with Ag(t/z) and Ag(g/c) antigenic sites of human apolipoprotein B.
abstract: Several high frequency restriction fragment length polymorphisms (RFLPs) associated with the human gene for apolipoprotein B have been previously reported by Priestly et al. The EcoRI RFLP here was shown to be very strongly associated with the Ag(t/z) immunochemical polymorphism of human low density lipoproteins, allowing correct Ag(t/z) phenotyping of 17 (out of 17 tested) unrelated individuals. The Xbal RFLP was associated with the Ag(g/c) immunochemical polymorphism, permitting correct phenotyping of 14 (out of 17 tested) unrelated individuals. Its close association with an RFLP permitted localization of the Ag(t/z) polymorphism to the C-terminal end of the apolipoprotein B peptide, and allowed detailed discussion of its probable molecular basis.
mesh_terms: D001055:Apolipoproteins B / Q000235:genetics* / Q000276:immunology; D004262:DNA Restriction Enzymes; D000939:Epitopes / Q000235:genetics*; D006801:Humans; D009693:Nucleic Acid Hybridization; D011110:Polymorphism, Genetic; D012150:Polymorphism, Restriction Fragment Length
chemical_list: D001055:Apolipoproteins B; D000939:Epitopes; D004262:DNA Restriction Enzymes