Mechanism of Ribulose-Diphosphate Carboxydismutase Reaction

Ribulose Diphosphate Carboxylase / Oxygenase

The stimulation or inhibition of ribulose diphosphate oxygenase by a variety of compounds is compared with the reported effects on these compounds on the ribulose diphosphate carboxylase activity. A possible transition state analog of ribulose diphosphate, Z-carboxyribitol 1 ,5-diphosphate, at a molar ratio of inhibitor to enzyme of 10 to 1, irreversibly inactivates the oxygenase and carboxylas...

Ribulose Diphosphate Carboxylase in Thiorhodaceae.

Chlorophyll, Ribulose-1,5-diphosphate Carboxylase, and Hill Reaction Activity in Developing Leaves of Populus deltoides.

The synthesis of chlorophyll and ribulose diphosphate carboxylase as well as the development of Hill reaction activity were followed in expanding Populus deltoides leaves and related to photosynthetic patterns. Total chlorophyll, which was not correlated with photosynthetic rate in expanding leaves, decreased slightly with age in very young leaves, due to a decrease in chlorophyll b, but then i...

Reaction Mechanism of Ribonucleoside Diphosphate Reductase from Escherichia coli

Ribonucleoside diphosphate reductase consists of two nonidentical subunits, proteins Bl and B2. The enzyme catalyzes the reduction of ribonucleotides to the corresponding deoxyribonucleotides. The electrons required in this reduction are transported from NADPH via a flavoprotein, thioredoxin reductase, to a low molecular weight protein, thioredoxin. The reduced form of thioredoxin acts as hydro...

Autotrophic CO2 assimilation and the evolution of ribulose diphosphate carboxylase.

From Heterotrophism to Autotrophism .......... ............................... 299 New Catalysts in CO.-Fixing Autotrophs ......... .............................. 300 RuDP carboxylase and phosphoribulokinase ....... .......................... 300 Properties of RuDP Carboxylase............................................... 300 Kinetic response to substrates ........................................