SEARCH Articles Figures Tables Carboxylase Carboxylases Carboxylases and Carboxylases and Carboxyltransferases Picolinate Carboxylase and Nonenzymic Cyclization to Quinolinic Acid Propionyl coenzyme A carboxylase and Pyruvate carboxylases and Ribulose diphosphate carboxylase and Ribulose-Bisphosphate Carboxylase-Oxygenase Photorespiration and the C-4 Cycle