KEGG Modules

Carbohydrate metabolism
Central carbohydrate metabolism
M00001 Glycolysis (Embden-Meyerhof pathway), glucose => pyruvate [PATH:pic00010 pic01200 pic01100]
M00002 Glycolysis, core module involving three-carbon compounds [PATH:pic00010 pic01200 pic01230 pic01100]
M00003 Gluconeogenesis, oxaloacetate => fructose-6P [PATH:pic00010 pic00020 pic01100]
M00307 Pyruvate oxidation, pyruvate => acetyl-CoA [PATH:pic00010 pic00020 pic00620 pic00785 pic01200 pic01210 pic01100]
M00009 Citrate cycle (TCA cycle, Krebs cycle) [PATH:pic00020 pic01200 pic01100]
M00010 Citrate cycle, first carbon oxidation, oxaloacetate => 2-oxoglutarate [PATH:pic00020 pic01200 pic01210 pic01230 pic01100]
M00011 Citrate cycle, second carbon oxidation, 2-oxoglutarate => oxaloacetate [PATH:pic00020 pic01200 pic01210 pic01100]
M00004 Pentose phosphate pathway (Pentose phosphate cycle) [PATH:pic00030 pic01200 pic01100]
M00006 Pentose phosphate pathway, oxidative phase, glucose 6P => ribulose 5P [PATH:pic00030 pic01200 pic01100]
M00007 Pentose phosphate pathway, non-oxidative phase, fructose 6P => ribose 5P [PATH:pic00030 pic01200 pic01230 pic01100]
M00005 PRPP biosynthesis, ribose 5P => PRPP [PATH:pic00030 pic00230 pic01200 pic01230 pic01100]

Other carbohydrate metabolism
M00632 Galactose degradation, Leloir pathway, galactose => alpha-D-glucose-1P [PATH:pic00052 pic01100]
M00854 Glycogen biosynthesis, glucose-1P => glycogen/starch [PATH:pic00500 pic01100]
M00855 Glycogen degradation, glycogen => glucose-6P [PATH:pic00500 pic01100]
M00549 Nucleotide sugar biosynthesis, glucose => UDP-glucose [PATH:pic00520 pic01250 pic01100]
M00554 Nucleotide sugar biosynthesis, galactose => UDP-galactose [PATH:pic00520 pic00052 pic01250 pic01100]
M00892 UDP-N-acetyl-D-glucosamine biosynthesis, eukaryotes, glucose => UDP-GlcNAc [PATH:pic00520 pic01250 pic01100]
M00012 Glyoxylate cycle [PATH:pic00630 pic01200 pic01100 pic01110]
M00013 Malonate semialdehyde pathway, propanoyl-CoA => acetyl-CoA [PATH:pic00410 pic00640 pic01200 pic01100]

Energy metabolism
Carbon fixation
Methane metabolism
M00344 Formaldehyde assimilation, xylulose monophosphate pathway [PATH:pic00680 pic01200 pic01100]

Nitrogen metabolism
Sulfur metabolism
M00176 Assimilatory sulfate reduction, sulfate => H2S [PATH:pic00920 pic01100]

Photosynthesis
ATP synthesis
M00143 NADH dehydrogenase (ubiquinone) Fe-S protein/flavoprotein complex, mitochondria [PATH:pic00190 pic01100]
M00148 Succinate dehydrogenase (ubiquinone) [PATH:pic00190 pic01100]

Lipid metabolism
Fatty acid metabolism
M00082 Fatty acid biosynthesis, initiation [PATH:pic00061 pic01212 pic01100]
M00083 Fatty acid biosynthesis, elongation [PATH:pic00061 pic01212 pic01100]
M00874 Fatty acid biosynthesis in mitochondria, fungi [PATH:pic00061 pic01212 pic01100]
M00415 Fatty acid elongation in endoplasmic reticulum [PATH:pic00062 pic01040 pic01212 pic01100]
M00086 beta-Oxidation, acyl-CoA synthesis [PATH:pic00061 pic00071 pic01212 pic01100]

Sterol biosynthesis
M00102 Ergocalciferol biosynthesis, FPP => ergosterol/ergocalciferol [PATH:pic00100 pic01100 pic01110]

Lipid metabolism
M00098 Acylglycerol degradation [PATH:pic00561 pic01100]
M00091 Phosphatidylcholine (PC) biosynthesis, PE => PC [PATH:pic00564 pic01100]
M00092 Phosphatidylethanolamine (PE) biosynthesis, ethanolamine => PE [PATH:pic00564 pic01100]
M00093 Phosphatidylethanolamine (PE) biosynthesis, PA => PS => PE [PATH:pic00564 pic01100]
M00094 Ceramide biosynthesis [PATH:pic00600 pic01100]
M00100 Sphingosine degradation [PATH:pic00600 pic01100]

Nucleotide metabolism
Purine metabolism
M00048 De novo purine biosynthesis, PRPP + glutamine => IMP [PATH:pic00230 pic01100]
M00049 Adenine ribonucleotide biosynthesis, IMP => ADP,ATP [PATH:pic00230 pic01232 pic01240 pic01100]
M00050 Guanine ribonucleotide biosynthesis, IMP => GDP,GTP [PATH:pic00230 pic01232 pic01100]
M00053 Deoxyribonucleotide biosynthesis, ADP/GDP/CDP/UDP => dATP/dGTP/dCTP/dUTP [PATH:pic00230 pic00240 pic01232 pic01100]

Pyrimidine metabolism
M00051 De novo pyrimidine biosynthesis, glutamine (+ PRPP) => UMP [PATH:pic00240 pic01240 pic01100]
M00052 Pyrimidine ribonucleotide biosynthesis, UMP => UDP/UTP,CDP/CTP [PATH:pic00240 pic01232 pic01240 pic01100]
M00938 Pyrimidine deoxyribonucleotide biosynthesis, UDP => dTTP [PATH:pic00240 pic01232 pic01100]

Amino acid metabolism
Serine and threonine metabolism
M00020 Serine biosynthesis, glycerate-3P => serine [PATH:pic00260 pic00680 pic01200 pic01230 pic01100]
M00018 Threonine biosynthesis, aspartate => homoserine => threonine [PATH:pic00260 pic01230 pic01100 pic01110]
M00621 Glycine cleavage system [PATH:pic00260 pic00630 pic00785 pic01200 pic01100]

Cysteine and methionine metabolism
M00338 Cysteine biosynthesis, homocysteine + serine => cysteine [PATH:pic00260 pic00270 pic01230 pic01100]
M00017 Methionine biosynthesis, aspartate => homoserine => methionine [PATH:pic00270 pic01230 pic01100]
M00034 Methionine salvage pathway [PATH:pic00270 pic01100]

Branched-chain amino acid metabolism
M00019 Valine/isoleucine biosynthesis, pyruvate => valine / 2-oxobutanoate => isoleucine [PATH:pic00290 pic00770 pic01210 pic01230 pic01100 pic01110]
M00570 Isoleucine biosynthesis, threonine => 2-oxobutanoate => isoleucine [PATH:pic00290 pic01230 pic01100]
M00432 Leucine biosynthesis, 2-oxoisovalerate => 2-oxoisocaproate [PATH:pic00290 pic01210 pic01230 pic01100 pic01110]

Lysine metabolism
M00030 Lysine biosynthesis, AAA pathway, 2-oxoglutarate => 2-aminoadipate => lysine [PATH:pic00300 pic01230 pic01100]
M00433 Lysine biosynthesis, 2-oxoglutarate => 2-oxoadipate [PATH:pic00300 pic01210 pic01230 pic01100]

Arginine and proline metabolism
M00028 Ornithine biosynthesis, glutamate => ornithine [PATH:pic00220 pic01210 pic01230 pic01100]
M00844 Arginine biosynthesis, ornithine => arginine [PATH:pic00220 pic01230 pic01100]
M00015 Proline biosynthesis, glutamate => proline [PATH:pic00330 pic01230 pic01100]
M00970 Proline degradation, proline => glutamate [PATH:pic00330 pic01100]
M00972 Proline metabolism [PATH:pic00330 pic01100]

Polyamine biosynthesis
M00134 Polyamine biosynthesis, arginine => ornithine => putrescine [PATH:pic00330 pic01100]

Histidine metabolism
Aromatic amino acid metabolism
M00022 Shikimate pathway, phosphoenolpyruvate + erythrose-4P => chorismate [PATH:pic00400 pic01230 pic01100 pic01110]
M00023 Tryptophan biosynthesis, chorismate => tryptophan [PATH:pic00400 pic01230 pic01100 pic01110]
M00024 Phenylalanine biosynthesis, chorismate => phenylpyruvate => phenylalanine [PATH:pic00400 pic01230 pic01100 pic01110]
M00025 Tyrosine biosynthesis, chorismate => HPP => tyrosine [PATH:pic00400 pic01230 pic01100]

Other amino acid metabolism
M00027 GABA (gamma-Aminobutyrate) shunt [PATH:pic00250 pic00650 pic01100]

Glycan metabolism
Glycan biosynthesis
M00055 N-glycan precursor biosynthesis [PATH:pic00510 pic01100]
M00072 N-glycosylation by oligosaccharyltransferase [PATH:pic00510 pic00513 pic01100]

Glycosaminoglycan metabolism
Lipopolysaccharide metabolism
Other polysaccharide metabolism
Metabolism of cofactors and vitamins
Cofactor and vitamin metabolism
M00898 Thiamine biosynthesis, pyridoxal-5P => TMP/thiamine/TPP [PATH:pic00730 pic01240 pic01100]
M00911 Riboflavin biosynthesis, fungi, GTP => riboflavin/FMN/FAD [PATH:pic00740 pic01240 pic01100]
M00916 Pyridoxal-P biosynthesis, R5P + glyceraldehyde-3P + glutamine => pyridoxal-P [PATH:pic00750 pic01240 pic01100]
M00912 NAD biosynthesis, tryptophan => quinolinate => NAD [PATH:pic00380 pic00760 pic01240 pic01100]
M00913 Pantothenate biosynthesis, 2-oxoisovalerate/spermine => pantothenate [PATH:pic00770 pic01240 pic01100]
M00120 Coenzyme A biosynthesis, pantothenate => CoA [PATH:pic00770 pic01240 pic01100]
M00882 Lipoic acid biosynthesis, eukaryotes, octanoyl-ACP => dihydrolipoyl-H [PATH:pic00785 pic01240 pic01100]
M00884 Lipoic acid biosynthesis, octanoyl-CoA => dihydrolipoyl-E2 [PATH:pic00785 pic01240 pic01100]
M00126 Tetrahydrofolate biosynthesis, GTP => THF [PATH:pic00790 pic00670 pic01240 pic01100]
M00141 C1-unit interconversion, eukaryotes [PATH:pic00670 pic01240 pic01100]
M00868 Heme biosynthesis, animals and fungi, glycine => heme [PATH:pic00860 pic01240 pic01100 pic01110]
M00128 Ubiquinone biosynthesis, eukaryotes, 4-hydroxybenzoate + polyprenyl-PP => ubiquinol [PATH:pic00130 pic01240 pic01100]

Biosynthesis of terpenoids and polyketides
Terpenoid backbone biosynthesis
M00095 C5 isoprenoid biosynthesis, mevalonate pathway [PATH:pic00900 pic01100 pic01110]
M00367 C10-C20 isoprenoid biosynthesis, non-plant eukaryotes [PATH:pic00900 pic01100 pic01110]

Plant terpenoid biosynthesis
Macrolide biosynthesis
Enediyne biosynthesis
Type II polyketide biosynthesis
Polyketide sugar unit biosynthesis
Biosynthesis of other secondary metabolites
Biosynthesis of phytochemical compounds
Biosynthesis of beta-lactams
Biosynthesis of other antibiotics
Biosynthesis of other fungal compounds
Biosynthesis of other bacterial compounds
Xenobiotics biodegradation
Aromatics degradation

Gene set
Pathogenicity
Drug resistance
Plant pathogenicity
Symbiosis
Module set
Metabolic capacity