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  • Title: Amine oxidase activity in commercial preparations of bovine serum albumin.
    Author: Al-Naji AS, Clarke DE.
    Journal: Life Sci; 1983 Feb 07; 32(6):635-43. PubMed ID: 6835028.
    Abstract:
    Amine oxidase activity has been identified in commercial samples of bovine serum albumin (BSA). Benzylamine, phenylethylamines and to a lesser extent, indoleamines, were found to be substrates. The amine oxidase activity was inhibited by semicarbazide and was virtually absent in electrophoretically purified samples. Kinetic analysis of benzylamine deamination and experiments utilizing mixed substrates indicate that more than one catalytic activity may be involved. The results show that amine deamination should be considered as a potential source of error in experiments employing high concentrations of commercially available BSA preparations. This would be of particular importance for in vitro studies with dopamine since this amine was found to be deaminated at a rapid rate.
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