Oxaloacetate Synthesis in Butyrivibrio fibrisolvens.
Phosphoenolpyruvate carboxykinase (adenosine 5'-triphosphate) was the only enzyme capable of carboxylating pyruvate or phosphoenolpyruvate that could be demonstrated in sonicated cells or cell-free extracts of a group 1 butyrivibrio.
van Gylswyk
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National Chemical Research Laboratory, South African Council for Scientific and Industrial Research, Pretoria 0001, South Africa.