The preparation of insoluble, matrix-supported derivatives of asparaginase for use in cancer therapy.


Four methods are described for the preparation of enzymically active, water-insoluble derivatives of the antineoplastic enzyme asparaginase from Escherichia coli B. All methods lead to covalent bond formation, and three of the derivatives are more stable at 37° than free enzyme in solution. Derivatives prepared by the Woodward's reagent method are slightly… (More)


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