Chondroitin lyase enzymes

Chemistry: molecular biology and microbiology – Enzyme – proenzyme; compositions thereof; process for... – Lyase

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424 945, 536 232, C12N 988, C12N 1560, A61K 3851

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active

060935634

ABSTRACT:
The present invention describes a method for the production of two highly purified enzymes capable of degrading chondroitin sulfate polysaccharides. A multi-step purification method incorporating cell disruption, cation exchange chromatography, affinity chromatography, hydroxylapatite chromatography, high resolution ion exchange chromatography and size exclusion is outlined. A 77,000.+-.5,000 Dalton protein capable of degrading chondroitin sulfates A and C and a 55,000.+-.2,300 Dalton protein capable of degrading dermatan sulfate were isolated. The genes encoding these enzymes, chondroitinase AC and chondroitinase B, respectively, have been cloned and methods for their use are described.

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