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普通脱硫弧菌提取物中存在磷酸核糖异构酶和核酮糖-1,5-二磷酸羧化酶的证据。

Evidence for the presence of phosphoriboisomerase and ribulose-1,5-diphosphate carboxylase in extracts of Desulfovibrio vulgaris.

作者信息

Alvarez M, Barton L L

出版信息

J Bacteriol. 1977 Jul;131(1):133-5. doi: 10.1128/jb.131.1.133-135.1977.

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.

摘要

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。

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本文引用的文献

1
Separation of the phosphoric esters on the filter paper chromatogram.磷酸酯在滤纸色谱上的分离
Nature. 1949 Dec 31;164(4183):1107-12, illust. doi: 10.1038/1641107a0.
2
On the nutrition of Desulphovibrio desulphuricans.关于脱硫脱硫弧菌的营养。
J Gen Microbiol. 1951 Oct;5(4):714-24. doi: 10.1099/00221287-5-4-714.
8
Energy coupling in Desulfovibrio desulfuricans.脱硫脱硫弧菌中的能量偶联
J Bacteriol. 1960 Oct;80(4):501-7. doi: 10.1128/jb.80.4.501-507.1960.

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