Definition of carboxylase in English:



  • An enzyme which catalyses the addition of a carboxyl group to a specified substrate.

    • ‘Chlorophyll contents, as well as concentrations of the carboxylation enzymes Rubisco and phosphoenolpyruvate carboxylase, are lower in aquatic compared with terrestrial leaves of amphibious plants.’
    • ‘Phosphoenolpyruvate carboxylase catalyses the carboxylation of PEP to form oxaloacetate.’
    • ‘A reduction of oxaloacetate does seem likely because both phosphoenolpyruvate carboxylase and total malate dehydrogenases were activated under the same stress conditions as those that activated PPDK.’
    • ‘Within skeletal muscle and heart activation of AMPK leads to the phosphorylation and inhibition of acetyl-CoA carboxylase.’
    • ‘Phosphoenolpyruvate carboxylase, which catalyses the carboxylation of phosphoenolpyruvate using HCO 3-to generate oxaloacetic acid, is an important enzyme in the primary metabolism of plants.’