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  • Title: Alteration in the immunochemical dominance of determinants following the chemical modification of ox insulins: implications for the structure of the ox insulin monomer in solution.
    Author: Hollins PJ, Nathan MM.
    Journal: Clin Exp Immunol; 1979 Oct; 38(1):127-34. PubMed ID: 93526.
    Abstract:
    Insulins of differing species, together with chemically modified insulins, were used in cross-reactivity experiments employing selected antisera raised to ox insulin in the Harley guinea-pig. The immunogen had been administered as a water-in-oil emulsion, using H. pertussis vaccine as adjuvant. Antibody was generated by determinants in the C-terminus of the B chain plus the adjacent N-terminus of the A chain, in the central core of the A chain (A8-A14 region) and in its anti-parallel N-terminus of the B chain. From this antibody pool chemically modified ox insulin selected antibody to unaltered determinants. The immunochemical data were compatible with monomeric ox insulin being immunogenic, the immunogen perhaps being recognized by the immune system in the form of the Molecule-II rather than the Molecule-I of the dimer pair (as originally suggested by X-ray crystallographic data).
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