3.5.1.68 Glyoxylate and dicarboxylate metabolism - 00630 - 3.5.1.68 Histidine metabolism - 00340 - 3.5.1.68 histidine metabolism histidine metabolism - - 3.5.1.68 L-histidine degradation II - - PWY-5028 3.5.1.68 Metabolic pathways - 01100 -