Binding of selected carbohydrates to apo-concanavalin A studied by electrospray ionization mass spectrometry
Literature Information
William D. van Dongen, Albert J. R. Heck
Electrospray ionization mass spectrometry was used to investigate the binding of selected carbohydrates to different multimeric forms of apo-concanavalin A (apo-Con A). Information on the stoichiometry of the different quaternary Con A complexes, bound to high-affinity carbohydrate ligands, could be derived from the mass spectra. It was observed that specific carbohydrate binding takes place with metal-free apo-Con A. The data revealed that the apo-dimer and -tetramer (which are both present in solution) have similar affinities for the studied carbohydrates.
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