Competition of Pyridoxal 5'-Phosphate with Ribulose 1,5-Bisphosphate and Effector Sugar Phosphates at the Reaction Centers of the Spinach Ribulose 1,5-Bisphosphate Carboxylase/Oxygenase [PDF]
Zeitschrift für Naturforschung C, 1980 The Stimulation of the carboxylase reaction by effectors of ribulose 1,5-bisphosphate carboxyl ase/oxygenase displays higher sensitivity towards pyridoxal 5'-phosphate inhibition than the catalytical process itself. Pyridoxal 5'-phosphate binding to the
Gaudszun, Thomas +3 more
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Inhibition of ribulose-1,5-bisphosphate carboxylase/oxygenase by xylulose 1,5-bisphosphate [PDF]
Journal of Biological Chemistry, 1977 Xylulose 1,5-bisphosphate is a potent inhibitor of ribulose-1,5-bisphosphate carboxylase/oxygenase. The enzyme was inhibited 50% at a xylulose 1,5-bisphosphate concentration of 0.56 micrometer and an enzyme concentration of 0.14 micrometer. When both ribulose 1,5-bisphosphate and xylulose 1,5-bisphosphate were added simultaneously to the enzyme, this ...
N.E. Tolbert, S.D. McCurry
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An insight: Impact of reduced Rubisco on plant physiology and biochemistry
The Indian Journal of Agricultural Sciences, 2021 Photosynthesis is a process of conversion of sunlight energy and atmospheric carbon to organic molecules with the help of a key and that is Ribulose-1,5-bisphosphate carboxylase/oxygenase. Ribulose-1,5-bisphosphate carboxylase/ oxygenase (RubisCo) is one
CHIRAG MAHESHWARI +3 more
doaj +1 more source
Structure of Pisum sativum Rubisco with bound ribulose 1,5-bisphosphate. [PDF]
Acta Crystallogr Sect F Struct Biol Cryst Commun, 2013 The first structure of a ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) from a pulse crop is reported. Rubisco was purified from Pisum sativum (garden pea) and diffraction-quality crystals were obtained by hanging-drop vapour diffusion in the presence of the substrate ribulose 1,5-bisphosphate.
Loewen PC +5 more
europepmc +7 more sources
Dissociation of Ribulose-1,5-Bisphosphate Bound to Ribulose-1,5-Bisphosphate Carboxylase/Oxygenase and Its Enhancement by Ribulose-1,5-Bisphosphate Carboxylase/Oxygenase Activase-Mediated Hydrolysis of ATP [PDF]
Plant Physiology, 1992 Ribulose bisphosphate (RuBP), a substrate of ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco), is an inhibitor of Rubisco activation by carbamylation if bound to the inactive, noncarbamylated form of the enzyme. The effect of Rubisco activase on the dissociation kinetics of RuBP bound to this form of the enzyme was examined and characterized ...
Zhen Yuan Wang, Archie R. Portis
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Bicarbonate Inhibits Ribulose-1,5-Bisphosphate Carboxylase [PDF]
Plant Physiology, 1988 Ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBPCO) rapidly extracted from leaves of wheat (Triticum aestivum) and purified activated RuBPCO were incubated in the presence and absence of 20 millimolar HCO(3) (-) and changes in activation state were followed.
F. Mächler, Josef Nösberger
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An ancient metabolite damage-repair system sustains photosynthesis in plants
Nature Communications, 2023 Ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) is the major catalyst in the conversion of carbon dioxide into organic compounds in photosynthetic organisms. However, its activity is impaired by binding of inhibitory sugars such as xylulose-1,5-
Dario Leister +10 more
doaj +1 more source
Agronomy, 2022 Ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) is a critical protein for photosynthesis. With small subunits, RBCSs catalyze the fixation of CO2 onto ribulose-1,5-bisphosphate (RuBP).
Xiaohui Wang +9 more
doaj +1 more source
A Common Structural Basis for the Inhibition of Ribulose 1,5-Bisphosphate Carboxylase by 4-Carboxyarabinitol 1,5-Bisphosphate and Xylulose 1,5-Bisphosphate [PDF]
Journal of Biological Chemistry, 1996 Ribulose 1,5-bisphosphate carboxylase/oxygenase (Rubisco) catalyzes the carboxylation of ribulose 1,5-bisphosphate. The reaction catalyzed by Rubisco involves several steps, some of which can occur as partial reactions, forming intermediates that can be isolated. Analogues of these intermediates are potent inhibitors of the enzyme.
Taylor, Thomas C. +2 more
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Ribulose 1,5-Bisphosphate and Activation of the Carboxylase in the Chloroplast [PDF]
Plant Physiology, 1981 Ribulose 1,5-bisphosphate in the chloroplast has been suggested to regulate the activity of the ribulose bisphosphate carboxylase/oxygenase. To generate high levels of ribulose bisphosphate, isolated and intact spinach chloroplasts were illuminated in the absence of CO(2).
Richard C. Sicher +3 more
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