1.4.1.12 Arginine and proline metabolism - 00330 - 1.4.1.12 D-Amino acid metabolism - 00470 - 1.4.1.12 Lysine degradation - 00310 - 1.4.1.12 Metabolic pathways - 01100 - 1.4.1.12 ornithine metabolism ornithine metabolism - -