EFFECTS OF BICARBONATE ON GROWTH OF PASTEURELLA PESTIS II. : Carbon Dioxide Fixation Into Oxalacetate by Cell-Free Extracts
AUTOR(ES)
Baugh, C. L.
RESUMO
Baugh, C. L. (Fort Detrick, Frederick, Md.), J. W. Lanham, and M. J. Surgalla. Effects of bicarbonate on growth of Pasteurella pestis. II. Carbon dioxide fixation into oxalacetate by cell-free extracts. J. Bacteriol. 88:553–558. 1964.—Enzyme preparations from Pasteurella pestis will carboxylate phosphoenolpyruvate to form oxalacetate by two distinct reactions. The reactions are similar to those catalyzed by the enzymes, phosphoenolpyruvic carboxylase and phosphoenolpyruvate carboxykinase. No significant differences in enzyme characteristics or enzyme content were found when virulent cells were compared with avirulent under the conditions of our experiments. The carboxykinase of P. pestis differs from that of animal origin, because it is dependent upon adenine derivatives rather than inosine or guanosine nucleotides. The latter two nucleotides can act indirectly by way of adenosine nucleotides, because nucleoside diphosphokinase and myokinase are present in the extract.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=277346Documentos Relacionados
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