Abstract
Comparison of the Arrhenius plots of three enzymes, formyltetrahydrofolate synthetase, glutathione reductase (GSSGR) and chorismate mutase (CM) from a thermophilic (Penicillium duponti) and a mesophilic (Penicillium chrysogenum) fungus reveals a fairly consistent pattern. In general, those enzymes extracted from mesophiles had lower activation energies than similar enzymes extracted from thermophiles. One enzyme studied, mesophilic glutathione reductase, exhibited a break in its Arrhenius plot. The allosteric enzyme studied showed slightly different sensitivities in the thermophilic versus the mesophilic extracts.
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Woodin, T., Welch, W. & Nishioka, L. Comparative Arrhenius plots of enzyme activity from penicillium. Mycopathologia et Mycologia Applicata 50, 167–178 (1973). https://doi.org/10.1007/BF02049955
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DOI: https://doi.org/10.1007/BF02049955