Both
bicarbonate and CO2 enters inside the cytosol of bacteria through
their respective channels and cytosolic pool of HCO3
enters inside
the carboxysome (a polyhedral body meant for CCM) where CA
catalyzes the reversible dehydration of HCO3 to CO2 and present
this CO2 on active side of RuBisCO (Yeates et al., 2008). The subsequent
action by RuBisCO in carbon sequestration leading to end
products like CaCO3, biodiesel and biosurfactant etc. and establishes
links to counter environmental degradation in a variety of
ways. Thus CA and RuBisCO might be important for CO2 sequestration
process.