α-cyanobacteria possessing form IA RuBisCO globally dominate aquatic habitats.

ABSTRACT: RuBisCO (ribulose 1,5-bisphosphate carboxylase/oxygenase) is one the most abundant enzymes on Earth. Virtually all food webs depend on its activity to supply fixed carbon. In aerobic environments, RuBisCO struggles to distinguish efficiently between CO₂ and O₂. To compensate, organisms have evolved convergent solutions to concentrate CO₂ around the active site. The genetic engineering of such inorganic carbon concentrating mechanisms (CCMs) into plants could help facilitate future global food security for humankind. In bacteria, the carboxysome represents one such CCM component, of which two independent forms exist: α and β. Cyanobacteria are important players in the planet's carbon cycle and the vast majority of the phylum possess a β-carboxysome, includin

SUBMITTER: Cabello-Yeves PJ 

PROVIDER: S-EPMC9477826 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature