Unusual Properties and Functions of Plant Pyruvate, Orthophospate Dikinase
نویسنده
چکیده
The pyruvate, orthophosphate dikinase (PPDK, EC 2.7.9.1), crucial plant enzyme in the process of concentrating CO2 for Calvin cycle, catalyzes phosphoenolpyruvate-regeneration phase of the C4 photosynthetic pathway [1]. However plants possess also nonphotosynthetic isoform of PPDK, which functions are less understood, probably due to its low abundance [2]. In all plants, PPDK is located in both cytoplasmic and plastidic compartments [3]. PPDK catalyzes the reversible ATPand Pidependent formation of phosphoenolpyruvate from pyruvate [4,5].
منابع مشابه
Regulation of pyruvate , orthophosphate dikinase by ADP - / Pi - dependent reversible phosphorylation in C 3 and C 4 plants > Chris
Pyruvate, orthophosphate dikinase (PPDK, E.C. 2.7.9.1) is a cardinal carbon-assimilating, stromal enzyme of the C4 photosynthetic pathway. Like several other photosynthetic pathway enzymes, its activity is strictly and reversibly regulated by light. This regulation is conferred by the PPDK regulatory protein (RP), a bifunctional protein kinase/phosphatase that catalyzes the ADP-/Pi-dependent, r...
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تاریخ انتشار 2016