ENZYMATIC CARBON DIOXIDE FIXATION INTO OXALACETATE IN WHEAT GERM
نویسندگان
چکیده
منابع مشابه
Fixation of carbon dioxide by a plant oxalacetate carboxylase.
The presence of an oxalacetate carboxylase in parsley root has been reported previously from this laboratory.’ The reaction catalyzed by this system has been found to be reversible, since it fixes Cl402 into oxalacetate during the decarboxylation of the latter in the presence of NaHC1403. The enzyme was prepared essentially as previously reported’ and completely freed from pyruvic carboxylase b...
متن کاملThe mechanism of enzymatic carbon dioxide fixation into oxal-acetate.
Studies of the non-enzymatic decarboxylation of /3-keto acids have shown that it is the keto form of the 8-keto acid which loses CO2 to form an enol of the product. This was demonstrated for dimethylacetoacetic acid by Pedersen (1) and for dimethyloxalacetic acid by Steinberger and Westheimer (2). These latter authors studied the catalytic effect of metal ions on the decarboxylation reaction an...
متن کاملThe enzymatic synthesis of oxalacetate from phosphoryl-enolpyruvate and carbon dioxide.
The present work is concerned with an enzyme, obtained from an acetone powder of spinach leaves, which catalyzes the carboxylation of phosphorylenolpyruvate’ to yield, under the conditions of isolation here employed, oxalacetate and inorganic phosphate. Pyruvate or pyruvate plus ATP will not substitute for PEP. Reduced triphosphopyridine nucleotide is not added to the reaction mixture and malat...
متن کاملCarbon dioxide fixation into amino acids of penicillium chrysogenum.
The relation of CO2 to the metabolism of Penicillium chrysogenum has been studied in three ways in this work: (1) attempts were made to replace C02; (2) radioactive C1402 was used to determine the conditions under which CO2 fixation occurred; and (3) attempts were made to identify some of the products of CO2 fixation, especially amino acids. These methods, singly or in combination, have been us...
متن کاملEnzymatic conversion of carbon dioxide.
With the continuous increase in fossil fuels consumption and the rapid growth of atmospheric CO2 concentration, the harmonious state between human and nature faces severe challenges. Exploring green and sustainable energy resources and devising efficient methods for CO2 capture, sequestration and utilization are urgently required. Converting CO2 into fuels/chemicals/materials as an indispensabl...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1955
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)98186-x