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Zeitschrift für Naturforschung C

A Journal of Biosciences

Editor-in-Chief: Seibel, Jürgen

Editorial Board: Aigner , Achim / Boland, Wilhelm / Bornscheuer, Uwe / Hoffmann, Klaus

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Volume 32, Issue 5-6


The Biosynthesis of Phenylacetic Acids in the Blue-Green Alga Anacystis nidulans: Evidence for the Involvement of a Thylakoid-Bound ʟ-Amino Acid Oxidase

W. Löffelhardt
  • Institut für Allgemeine Biochemie der Universität Wien and Ludwig Boltzmann-Forschungsstelle für Biochemie
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Published Online: 2014-06-02 | DOI: https://doi.org/10.1515/znc-1977-5-606


Phenylacetic acid and p-hydroxyphenylacetic acid are formed upon incubation of photosynthetic membranes from the prokaryotic alga Anacystis nidulans with ʟ-phenylalanine and ʟ-tyrosine, respectively. The corresponding phenylpyruvic acids act as intermediates as shown by trapping them as the stable oximino acids. The first step in this reaction sequence appears to be catalyzed by a thylakoid-bound ʟ-amino acid oxidase. Already existing evidence concerning phenylacetic acid formation at thylakoid membranes of higher plants via an ʟ-amino acid oxidase and the results obtained with A. nidulans give another example of aromatic amino acids between chloroplasts and blue-green algae.

Keywords: Membrane-Bound Enzymes; Anacystis nidulans; Thylakoids; Phenylacetic Acids; ʟ-Amino Acid Oxidase

About the article

Received: 1977-02-14

Published Online: 2014-06-02

Published in Print: 1977-06-01

Citation Information: Zeitschrift für Naturforschung C, Volume 32, Issue 5-6, Pages 345–350, ISSN (Online) 1865-7125, ISSN (Print) 0939-5075, DOI: https://doi.org/10.1515/znc-1977-5-606.

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© 1946 – 2014: Verlag der Zeitschrift für Naturforschung. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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