Alvarez M, Barton L L
J Bacteriol. 1977 Jul;131(1):133-5. doi: 10.1128/jb.131.1.133-135.1977.
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.
当以5-磷酸核糖或1,5-二磷酸核酮糖作为底物时,发现普通脱硫弧菌的细胞提取物能将14CO2掺入酸稳定产物中。这种CO2固定需要三磷酸腺苷,并产生3-磷酸甘油酸作为产物之一。戊糖磷酸对CO2的同化作用与丙酮酸-CO2交换反应无关。丙酮酸-CO2交换不需要三磷酸腺苷,不产生磷酸化化合物,并且与戊糖磷酸系统不同,其活性需要一种酸性蛋白质组分。