Activation Energies of Reactions Catalyzed by the Nitrate Reductase from Chlorella vulgaris

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概要

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• The thermal dependence of two of the reactions catalyzed by the nitrate reductase from Chlorella vulgaris was determined. The activation energies for NADH:nitrate oxidoreductase (EC 1.6.6.1) and NADH:Cyiochrome c oxidoreductase (EC 1.6.99.3) are 42.1 kJ・mol^<-1> and 21.5 kJ・mol^<-1>, respectively. Since the thermal dependency of the two enzymes is different, ratios of the activities will vary with temperature. The importance of both rigorous thermal control during nitrate reductase assays as well as the need to specify the temperature at which the ratio of activities for the enzyme are clearly established.

• 日本植物生理学会の論文

著者

• Sherman Timothy

  Department Of Biochemistry And Biophysics Taes Texas A&m University

• Mahan J

  Usda‐ars Cropping Systems Res. Lab. Tx Usa

• Funkhouser Edward

  Department Of Biochemistry And Biophysics Taes Texas A&m University

• Mahan James

  Department of Biochemistry and Biophysics, TAES, Texas A&M University

• Mahan James

  Department of Biochemistry and Biophysics, TAES, Texas A&M University:(Present)Cropping Systems Research Laboratory, USDA-ARS

関連論文

• Biochemical Characterization of Molybdenum-Cofactor in a Cyanobacterium, Nostoc muscorum
• Structural and Immunological Characterization of the Cuscuta pentagona L.Chloroplast
• Activation Energies of Reactions Catalyzed by the Nitrate Reductase from Chlorella vulgaris
• Accumulation of Demolybdo Nitrate Reductase during Induction and Its Separation from Active Nitrate Reductase in Chlorella

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