( b ) quinolinate , an inhibitor of phosphoenolpyruvate carboxylase ( gtp : oxaloacetate carboxylyase , transphosphorylating , ec 4.1.1.32 ) , caused a several-fold increase in the oxaloacetate concentration but inhibited lactate production from pyruvate ;
C0031644
phosphoenolpyruvate carboxylase
C0007054
carboxylyase