A concerted response of the enzymes of urea biosynthesis during thyroxine-induced metamorphosis of Rana catesbeiana.

Adenosine Triphosphate Ammonia Animals Anura Arginase/metabolism Arginine Aspartic Acid Carbon Dioxide Citrulline Larva/enzymology Ligases/metabolism Liver/anatomy & histology,enzymology,metabolism Lyases/metabolism Metamorphosis, Biological/drug effects Mitochondria, Liver/enzymology Organ Size Ornithine/metabolism Ornithine Carbamoyltransferase/metabolism Phosphotransferases/metabolism Rana catesbeiana Subcellular Fractions/enzymology Succinates Thyroxine/pharmacology Urea/biosynthesis

Succinates Carbon Dioxide Citrulline Aspartic Acid Ammonia Adenosine Triphosphate Urea Arginine Ornithine Ornithine Carbamoyltransferase Phosphotransferases Arginase Lyases Ligases Thyroxine