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  • Title: Evidence for the presence of phosphoriboisomerase and ribulose-1,5-diphosphate carboxylase in extracts of Desulfovibrio vulgaris.
    Author: Alvarez M, Barton LL.
    Journal: J Bacteriol; 1977 Jul; 131(1):133-5. PubMed ID: 873881.
    Abstract:
    Cell extracts of Desulfovibrio vulgaris were found to incorporate 14CO2 into acid-stable products when ribose-5-phosphate or ribulose-1,5-diphosphate was used as a substrate. This CO2 fixation required adenosine triphosphate and produced 3-phosphoglyceric acid as one of the products. The assimilation of CO2 by pentose phosphates was unrelated to the pyruvate-CO2 exchange reaction. The pyruvate-CO2 exchange did not require adenosine triphosphate, did not produce phosphorylated compounds, and, unlike the pentose phosphate system, required an acidic protein fraction for activity.
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