Abstract
Four glycoproteins were separated by SDS-polyacrylamide gel electrophoresis of proteins of human pancreatic juice devoid of free proteolytic activity. The two low molecular weight glycoproteins were isolated and characterized. Protein P19, the precursor family of protein X, was analyzed by its carbohydrate content which seemed to play an important role in protein solubility at pH 8.0. Protein P35 was found to be a Con A-binding protein rich in mannose. Its N-terminal amino acid sequence covering 33 residues revealed a strong homology with human protease E without the dipeptide Val-Val. Is P35 a protein homologous to the subunit III of bovine procarboxypeptidase A?
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More From: Biochemical and Biophysical Research Communications
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