The Effect of SO32- and SO42- Ions on the Reactions of Ribulose Bisphosphate Carboxylase
Journal of Experimental Botany, 1984 The effects of sulphite ion (Formula) and sulphate ion (Formula) on both the activation and the catalytic activities of ribulose- 1, 5-bisphosphate carboxylase (EC 4.1.1.39) were studied and compared to those of other effectors of the enzyme, particularly inorganic phosphate (P1).
Parry, M. A J, Gutteridge, S.
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Modification of histidine at the active site of spinach ribulose bisphosphate carboxylase
Biochemical and Biophysical Research Communications, 1980 Abstract Ribulose 1,5-bisphosphate carboxylase from spinach was rapidly inactivated by diethylpyrocarbonate (DEP) at pH 7.0 and 30°C. The inactivation showed saturation kinetics with a half-inactivation time at saturating DEP equal to 0.1 minutes and KDEP = 7.4 mM.
A K, Saluja, B A, McFadden
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, 1990 The transient changes in absorption of visible light upon addition of ribulose 1,5-bisphosphate to Co2+-activated ribulose-1,5-bisphosphate carboxylase/oxygenase were used to show altered catalytic properties of a mutant form of the enzyme from Anacystis
Brändén, R. +3 more
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Ribulose Bisphosphate Carboxylase [PDF]
Plant Physiology, 1977 A decaploid tall fescue (Festuca arundinacea Schreb) genotype has been found which exhibits net photosynthetic rates of 32 to 41 mg CO(2)/dm(2).hour as opposed to a mean of 22 mg CO(2)/dm(2).hour for 10 hexaploid genotypes. The decaploid genotype exhibited a ribulose 1,5-bisphosphate (RuBP) carboxylase specific activity 1.3- to 2-fold higher than ...
D D, Randall, C J, Nelson, K H, Asay
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Protein-Bound Ribulose Bisphosphate Correlates with Deactivation of Ribulose Bisphosphate Carboxylase in Leaves [PDF]
Plant Physiology, 1988 Previous reports indicate that ribulose 1,5-bisphosphate (RuBP) binds very tightly to inactive ribulose bisphosphate carboxylase (rubisco) in vitro. Therefore, we decided to investigate whether there was evidence for tight binding of RuBP associated with deactivation of rubisco in vivo.
A, Brooks, A R, Portis
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Activation of Ribulose Bisphosphate Carboxylase Purified from Wheat Leaves
Journal of Experimental Botany, 1980 Machler, F. +2 more
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2-carboxy-D-arabitinol 1-phosphate protects ribulose 1,5-bisphosphate carboxylase/oxygenase against proteolytic breakdown. [PDF]
, 1999 Trypsin-catalysed cleavage of purified ribulose 1,5-bisphosphate carboxylase/oxygenase (Rubisco) and the resultant irreversible loss of carboxylase activity were prevented by prior incubation with the naturally occurring nocturnal Rubisco inhibitor 2 ...
Andralojc, P. John +7 more
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Storage and Maintaining Activity of Ribulose Bisphosphate Carboxylase/Oxygenase [PDF]
Plant Physiology, 1981 Purified ribulose-1,5-bisphosphate carboxylase/oxygenase in 50% saturated (NH(4))(2)SO(4) was stable when frozen as small beads in liquid nitrogen and stored at -80 C. When stored as a slurry at 4 C most of the activity was lost within four weeks. This loss was due not only to enzyme polymerization.
N P, Hall, S D, McCurry, N E, Tolbert
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Activation State of Ribulose Bisphosphate Carboxylase in Soybean Leaves [PDF]
Plant Physiology, 1984 Conditions for extraction and assay of ribulose-1,5-bisphophate carboxylase present in an in vivo active form (initial activity) and an inactive form able to be activated by Mg(2+) and CO(2) (total activity) were examined in leaves of soybean, Glycine max (L.) Merr. cv Will.
J C, Servaites, R S, Torisky
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Ribulose Bisphosphate Carboxylase/Oxygenase and Carbonic Anhydrase
, 1990 ALFRED J. KEYS, MARTIN A.J. PARRY
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