Abstract
Clostridium formicoaceticum possesses the following enzymes for the assimilation of N2 and NH +4 : nitrogenase, glutamine synthetase, NADH- and NADPH-dependent glutamate synthase, NADH- and NADPH-dependent glutamate dehydrogenase, NADPH-dependent alamine dehydrogenase, and NH +4 -dependent asparagine synthetase. Nitrogenase and glutamine synthetase are repressed and alanine dehydrogenase is induced by NH +4 , while the synthesis of the other enzymes is not influenced by the extracellular NH +4 level. Glutamate is degraded via glutamate mutase and β-methylaspartase.
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Abbreviations
- GOGAT:
-
glutamine-oxoglutarate amidotransferase
References
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Bogdahn, M., Andreesen, J.R. & Kleiner, D. Pathways and regulation of N2, ammonium and glutamate assimilation by Clostridium formicoaceticum . Arch. Microbiol. 134, 167–169 (1983). https://doi.org/10.1007/BF00407953
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DOI: https://doi.org/10.1007/BF00407953