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Distribution Of Proteoglycans Antigenically Related To Corneal Keratan Sulfate Proteoglycan, J L Funderburgh, B Caterson, G W Conrad
Distribution Of Proteoglycans Antigenically Related To Corneal Keratan Sulfate Proteoglycan, J L Funderburgh, B Caterson, G W Conrad
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Three antibodies reacting with corneal keratan sulfate proteoglycan were used to detect antigenically related molecules in 11 bovine and 13 embryonic chick tissues. Two monoclonal antibodies recognized sulfated epitopes on the keratan sulfate chain and a polyclonal antibody bound antigenic sites on the core protein of corneal keratan sulfate proteoglycan. Competitive immunoassay detected core protein and keratan sulfate antigens in guanidine HCl extracts of most tissues. Keratan sulfate antigens of most bovine tissues were only partially extracted with guanidine HCl, but the remainder could be solubilized by CNBr treatment of the guanidine-extracted residue. Keratan sulfate and core protein antigens co-eluted …