Chemical Modification of the Active Site of Ferredoxin-Thioredoxin Reductase
DOI:
https://doi.org/10.2533/chimia.1993.245Abstract
Ferredoxin-thioredoxinreductase is an essential member of a light-dependent regulatory system in oxygenic photosynthesis. This enzyme is composed of two nonidentical subunits, contains a 4Fe-4S cluster of a yet unknown function, and a catalytically active dithiol group. We have used N-ethylmaleimide to modify specifically the active site thiols of the protein and show that their chemical modification completely abolishes the catalytic capacity of the enzyme and causes changes in the absorption spectrum of the protein.Downloads
Published
1993-06-30
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Forschung
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Copyright (c) 1993 Swiss Chemical Society
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
How to Cite
[1]
Chimia 1993, 47, 245, DOI: 10.2533/chimia.1993.245.