Carbohydrate Metabolism 00010 Glycolysis / Gluconeogenesis 00020 Citrate cycle (TCA cycle) 00030 Pentose phosphate pathway 00040 Pentose and glucuronate interconversions 00051 Fructose and mannose metabolism 00052 Galactose metabolism 00053 Ascorbate and aldarate metabolism 00500 Starch and sucrose metabolism 00520 Amino sugar and nucleotide sugar metabolism 00620 Pyruvate metabolism 00630 Glyoxylate and dicarboxylate metabolism 00640 Propanoate metabolism 00650 Butanoate metabolism 00562 Inositol phosphate metabolism Energy Metabolism 00190 Oxidative phosphorylation 00680 Methane metabolism 00910 Nitrogen metabolism 00920 Sulfur metabolism Lipid Metabolism 00061 Fatty acid biosynthesis 00062 Fatty acid elongation 00071 Fatty acid metabolism 00072 Synthesis and degradation of ketone bodies 00100 Steroid biosynthesis 00561 Glycerolipid metabolism 00564 Glycerophospholipid metabolism 00565 Ether lipid metabolism 00600 Sphingolipid metabolism 00590 Arachidonic acid metabolism 00592 alpha-Linolenic acid metabolism 01040 Biosynthesis of unsaturated fatty acids Nucleotide Metabolism 00230 Purine metabolism 00240 Pyrimidine metabolism Amino Acid Metabolism " 00250 Alanine, aspartate and glutamate metabolism" " 00260 Glycine, serine and threonine metabolism" 00270 Cysteine and methionine metabolism " 00280 Valine, leucine and isoleucine degradation" " 00290 Valine, leucine and isoleucine biosynthesis" 00300 Lysine biosynthesis 00310 Lysine degradation 00330 Arginine and proline metabolism 00340 Histidine metabolism 00350 Tyrosine metabolism 00360 Phenylalanine metabolism 00380 Tryptophan metabolism " 00400 Phenylalanine, tyrosine and tryptophan biosynthesis" Metabolism of Other Amino Acids 00410 beta-Alanine metabolism 00430 Taurine and hypotaurine metabolism 00450 Selenocompound metabolism 00460 Cyanoamino acid metabolism 00480 Glutathione metabolism Glycan Biosynthesis and Metabolism 00510 N-Glycan biosynthesis 00513 Various types of N-glycan biosynthesis 00514 Other types of O-glycan biosynthesis 00531 Glycosaminoglycan degradation 00563 Glycosylphosphatidylinositol(GPI)-anchor biosynthesis 00603 Glycosphingolipid biosynthesis - globo series 00511 Other glycan degradation Metabolism of Cofactors and Vitamins 00730 Thiamine metabolism 00740 Riboflavin metabolism 00750 Vitamin B6 metabolism 00760 Nicotinate and nicotinamide metabolism 00770 Pantothenate and CoA biosynthesis 00780 Biotin metabolism 00785 Lipoic acid metabolism 00790 Folate biosynthesis 00670 One carbon pool by folate 00860 Porphyrin and chlorophyll metabolism 00130 Ubiquinone and other terpenoid-quinone biosynthesis Metabolism of Terpenoids and Polyketides 00900 Terpenoid backbone biosynthesis