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Proteoglycans from pterygium tissues.

The proteoglycans of pterygium tissues were isolated and characterized by using biochemical methods. The existence of 2 kinds of proteoglycans was shown by agarose-polyacrylamide gel electrophoresis; their molecular weights were estimated based on the mobility on agarose-polyacrylamide gel electrophoresis and on Kav values on gel chromatography. One proteoglycan was protein-rich with a molecular weight of 1.15 X 10(6), while the other was free from protein or contained a little protein, and had a molecular weight of 4.9 X 10(5).