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Three recombinant apoE isoforms fused with an amino-terminal extension of 43 amino acids were produced in a heterologous expression system in E. coli. Their state of association in aqueous phase was analyzed by size-exclusion liquid chromatography, sedimentation velocity and sedimentation equilibrium experiments. By liquid chromatography, all three isoforms consisted of three major species with Stokes...
The stabilities toward thermal and chemical denaturation of three recombinant isoforms of human apolipoprotein E (r-apoE2, r-apoE3 and r-apoE4), human plasma apoE3, the recombinant amino-terminal (NT) and the carboxyl-terminal (CT) domains of plasma apoE3 at pH 7 were studied using near and far ultraviolet circular dichroism (UV CD), fluorescence and size-exclusion chromatography. By far UV CD, thermal...
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