Abstract
Affinity chromatography is an important strategy for target identifications. However, commercial available solid materials have limitations while selection of that is sometimes vital for the purpose. We have reported a synthetic resin with a monolithic structure in previous papers. In this paper, introduction effects of spacer to the monolithic material on identification of specific binding protein was quantitatively analyzed using benzensulfonamide as a bait, which exhibited introduction of ω-substituted heptanoic acid as spacer enabled affinity resins to capture the target proteins effectively. Utilization of the optimized spacer enable the monolithic material bearing FK506 to identify not only FKBP12 but FKBP52, calcineurin A and calcineurin B at silver stained level, while that without spacer had failed.
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