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The glycosaminoglycans and proteoglycans of a human chondrosarcoma have been studied. Glycosaminoglycans were fractionated and identified by cetylpirdium chloride (CPC) cellulose chromatography, ECTEOLA cellulose ion-exchange chromatography and electrophoresis on cellulose acetate. Proteoglycans were extracted by low ionic strength solutions and by 4 M guanidinium chloride and fractioned by equilibrium density-gradient centrifugation and gel chromatography on Sepharose 2B. The tumour matrix contained both the 4- and 6-sulphate isomers of chondroitin sulphate and a high concentration (12% of hexosamine) of hyaluronic acid. Proteoglycans were poor in carbohydrate moieties and proportion were capable of aggregation. Amino acid analysis of the fractionated proteoglycans suggested the presence of a single protein core. A substance with the characteristic amino acid composition of glycoprotein link was recovered from the top of the dissociative density gradient.
M B Sweet, and
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A R Immelman
October 1986,
Experimental and molecular pathology,
M B Sweet, and
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M B Sweet, and
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The Journal of bone and joint surgery. American volume,
M B Sweet, and
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M B Sweet, and
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M B Sweet, and
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M B Sweet, and
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