Figure 2. SPR analysis of the interaction of the protein material of liver tissue lysate SEC fractions with immobilized protein CXXC1 (Uniprot ID: Q9P0U4) on the biosensor chip. (A) – distribution of the total binding signals of the protein material in the range of 1000 - 2000 kDa, (I); 150 - 500 kDa (II); 15 - 100 kDa (III). (B) - distribution of binding signals of the protein material of liver tissue lysate SEC fractions with average molecular weights of 15, 30, 45, 75 and 100 kDa. One RU (Resonance Unit) corresponds to the binding of one 1 pg of the protein material on one mm2 of the biosensor chip surface.