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Catalytic Efficiency of a Photoenzyme—An Adaptation to Natural Light Conditions

Authors

  • Robert Hanf,

    1. Friedrich-Schiller-Universität Jena, Institut für Physikalische Chemie, Helmholtzweg 4, 07743 Jena (Germany), Fax: (+49) 3641-948302
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    • These authors contributed equally to the work.

  • Sonja Fey,

    1. Friedrich-Schiller-Universität Jena, Institut für Biochemie und Biophysik, Philosophenweg 12, 07743 Jena (Germany)
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    • These authors contributed equally to the work.

  • Prof. Michael Schmitt,

    1. Friedrich-Schiller-Universität Jena, Institut für Physikalische Chemie, Helmholtzweg 4, 07743 Jena (Germany), Fax: (+49) 3641-948302
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  • Dr. Gudrun Hermann,

    1. Friedrich-Schiller-Universität Jena, Institut für Biochemie und Biophysik, Philosophenweg 12, 07743 Jena (Germany)
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  • Prof. Benjamin Dietzek,

    1. Friedrich-Schiller-Universität Jena, Institut für Physikalische Chemie, Helmholtzweg 4, 07743 Jena (Germany), Fax: (+49) 3641-948302
    2. Institut für Photonische Techologien e. V, Albert-Einstein-Str. 9, 07745 Jena (Germany)
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  • Prof. Jürgen Popp

    Corresponding author
    1. Friedrich-Schiller-Universität Jena, Institut für Physikalische Chemie, Helmholtzweg 4, 07743 Jena (Germany), Fax: (+49) 3641-948302
    2. Institut für Photonische Techologien e. V, Albert-Einstein-Str. 9, 07745 Jena (Germany)
    • Friedrich-Schiller-Universität Jena, Institut für Physikalische Chemie, Helmholtzweg 4, 07743 Jena (Germany), Fax: (+49) 3641-948302
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Abstract

original image

Cheap and safe: The catalytic efficiency of a light-dependent photoenzyme (NADPH: protochlorophyllide oxidoreductase) is investigated as a function of the excitation wavelength (see picture). It becomes evident that “red” photons are more efficiently utilized in enzyme catalysis than “blue” photons. This shows an adaptation of the enzyme activity to the natural light conditions.

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