RuBP availability contributes to the regulation of RUBISCO activity in Synechocystis.
RIBULOSE-1,5-BISPHOSPHATE CARBOXYLASE/OXYGENASE (RUBISCO) and the Calvin-Benson-Bassham (CBB) cycle assimilate most of the inorganic carbon on earth. Conserved CP12 proteins control diurnal C-assimilation of the CBB cycle. Their function originated in cyanobacteria that deactivate GLYCERALDEHYDE 3-PHOSPHATE DEHYDROGENA...