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  • Title: Mapping of antigenic determinants of human apolipoprotein B using monoclonal antibodies against low density lipoproteins.
    Author: Marcel YL, Hogue M, Theolis R, Milne RW.
    Journal: J Biol Chem; 1982 Nov 25; 257(22):13165-8. PubMed ID: 6183259.
    Abstract:
    The reactivity of a series of monoclonal antibodies directed against human low density lipoproteins (LDL) has been tested with hepatic and intestinal apolipoprotein B (apo-B) termed B-100 and B-48, respectively (Kane, J. P., Hardman, D. A., and Paulus, H. E. (1980) Proc. Natl. Acad. Sci. U. S. A. 77, 2465-2469). Whereas those antibodies that have been previously shown to recognize determinants close to the LDL receptor recognition site reacted only with B-100, two antibodies specific for other regions of apo-B reacted with both B-100 and B-48. Therefore, it is probable that sequence homologies exist between the two proteins and it must be considered that all or parts of the B-48 sequence may be contained within that of B-100. The specificity of the reaction of these antibodies with proteins designated B-74 and B-26 supports the concept that they represent complementary fragments of B-100. The present results have been incorporated in a theoretical map of the antigenic determinants recognized by these antibodies on the LDL apo-B.
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