Abstract
Cultured hepatocytes express binding sites for bovine serum amine oxidase on their membrane surfaces as evaluated at the electron microscopic level by using enzyme-gold complexes. Hepatocytes show binding sites as small clusters of gold granules, not bound in a specialized region of the plasma membrane. The binding competition of enzyme-gold ligand to cells was achieved by preincubation with uncoupled bovine serum amine oxidase. In addition, N-acetyl-galactosamine, N-acetyl-glucosamine and Mannose, at the final concentration of 80 mM, partially inhibit the binding.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Amine Oxidase (Copper-Containing)*
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Animals
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Binding, Competitive
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Cattle
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Cell Membrane / metabolism
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Cell Membrane / ultrastructure
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Cells, Cultured
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Gold
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Kinetics
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Liver / metabolism*
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Liver / ultrastructure
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Male
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Microscopy, Electron
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Monosaccharides / pharmacology
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Oxidoreductases Acting on CH-NH Group Donors / blood
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Oxidoreductases Acting on CH-NH Group Donors / metabolism*
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Protein Binding
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Rats
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Rats, Inbred Strains
Substances
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Monosaccharides
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Gold
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Amine Oxidase (Copper-Containing)
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Oxidoreductases Acting on CH-NH Group Donors