Abstract
Cyanogen bromide was used to convert pyridine rings in polymers to polyaldehyde. By reaction with NH2-containing substances, the rings are rebuilt, resulting in a pyridinium compound. Thus proteins and other NH2-containing substances can be covalently bound. This method provides a new means for a immobilization technique. Pyridine-gels based on polysaccharide and polyacrylamide matrices, as well as pyridine glass beads, were synthesized and used to study the conditions necessary for coupling. Trypsin and — chymotrypsin were used as test substances for immobilization of proteins. Some properties of the bound protein were studied and compared to native enzyme. Some general results on the applicability of these gels for affinity chromatography are also presented.
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Pittner, F., Miron, T., Pittner, G. et al. Immobilization of protein on aldehyde-containing gels—II. Activation of pyridine rings with cyanogen bromide. Journal of Solid Phase Biochemistry 5, 167–180 (1980). https://doi.org/10.1007/BF02994455
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DOI: https://doi.org/10.1007/BF02994455