KEGG Modules

Carbohydrate metabolism
Central carbohydrate metabolism
M00001 Glycolysis (Embden-Meyerhof pathway), glucose => pyruvate
M00002 Glycolysis, core module involving three-carbon compounds
M00003 Gluconeogenesis, oxaloacetate => fructose-6P
M00010 Citrate cycle, first carbon oxidation, oxaloacetate => 2-oxoglutarate
M00004 Pentose phosphate pathway (Pentose phosphate cycle)
M00006 Pentose phosphate pathway, oxidative phase, glucose-6P => ribulose-5P
M00007 Pentose phosphate pathway, non-oxidative phase, fructose-6P => ribose-5P
M00005 PRPP biosynthesis, ribose-5P => PRPP

Other carbohydrate metabolism
M00632 Galactose degradation, Leloir pathway, galactose => alpha-D-glucose-1P
M00854 Glycogen biosynthesis, glucose-1P => glycogen/starch
M00855 Glycogen degradation, glycogen => glucose-6P
M00012 Glyoxylate cycle
M00013 Malonate semialdehyde pathway, propanoyl-CoA => acetyl-CoA

Energy metabolism
Sulfur metabolism
M00176 Assimilatory sulfate reduction, sulfate => H2S

ATP synthesis
M00148 Succinate dehydrogenase (ubiquinone)

Lipid metabolism
Fatty acid metabolism
M00082 Fatty acid biosynthesis, initiation
M00083 Fatty acid biosynthesis, elongation
M00086 beta-Oxidation, acyl-CoA synthesis

Lipid metabolism
M00089 Triacylglycerol biosynthesis
M00091 Phosphatidylcholine (PC) biosynthesis, PE => PC
M00092 Phosphatidylethanolamine (PE) biosynthesis, ethanolamine => PE
M00093 Phosphatidylethanolamine (PE) biosynthesis, PA => PS => PE
M00094 Ceramide biosynthesis
M00099 Sphingosine biosynthesis
M00100 Sphingosine degradation

Nucleotide metabolism
Purine metabolism
M00048 De novo purine biosynthesis, PRPP + glutamine => IMP
M00049 Adenine ribonucleotide biosynthesis, IMP => ADP,ATP
M00050 Guanine ribonucleotide biosynthesis, IMP => GDP,GTP
M00053 Deoxyribonucleotide biosynthesis, ADP/GDP/CDP/UDP => dATP/dGTP/dCTP/dUTP

Pyrimidine metabolism
M00051 De novo pyrimidine biosynthesis, glutamine (+ PRPP) => UMP
M00052 Pyrimidine ribonucleotide biosynthesis, UMP => UDP/UTP,CDP/CTP
M00938 Pyrimidine deoxyribonucleotide biosynthesis, UDP => dTTP

Amino acid metabolism
Serine and threonine metabolism
M00020 Serine biosynthesis, glycerate-3P => serine
M00018 Threonine biosynthesis, aspartate => homoserine => threonine

Cysteine and methionine metabolism
M00338 Cysteine biosynthesis, homocysteine + serine => cysteine
M00017 Methionine biosynthesis, aspartate => homoserine => methionine
M00035 Methionine degradation

Branched-chain amino acid metabolism
M00019 Valine/isoleucine biosynthesis, pyruvate => valine / 2-oxobutanoate => isoleucine
M00570 Isoleucine biosynthesis, threonine => 2-oxobutanoate => isoleucine
M00432 Leucine biosynthesis, 2-oxoisovalerate => 2-oxoisocaproate

Lysine metabolism
M00030 Lysine biosynthesis, AAA pathway, 2-oxoglutarate => 2-aminoadipate => lysine
M00433 Lysine biosynthesis, 2-oxoglutarate => 2-oxoadipate

Arginine and proline metabolism
M00844 Arginine biosynthesis, ornithine => arginine
M00015 Proline biosynthesis, glutamate => proline

Polyamine biosynthesis
M00134 Polyamine biosynthesis, arginine => ornithine => putrescine

Histidine metabolism
M00026 Histidine biosynthesis, PRPP => histidine
M01061 Ergothioneine biosynthesis, fungi, histidine => ergothioneine

Aromatic amino acid metabolism
M00022 Shikimate pathway, phosphoenolpyruvate + erythrose-4P => chorismate
M00023 Tryptophan biosynthesis, chorismate => tryptophan
M00024 Phenylalanine biosynthesis, chorismate => phenylpyruvate => phenylalanine
M00025 Tyrosine biosynthesis, chorismate => HPP => tyrosine
M00044 Tyrosine degradation, tyrosine => homogentisate

Other amino acid metabolism
M00027 GABA (gamma-Aminobutyrate) shunt
M00118 Glutathione biosynthesis, glutamate => glutathione

Glycan metabolism
Nucleotide sugar biosynthesis
M00892 UDP-GlcNAc biosynthesis, eukaryotes, Fru-6P => UDP-GlcNAc
M00549 UDP-Glc biosynthesis, Glc => UDP-Glc
M01004 UDP-Galf biosynthesis, UDP-Glc => UDP-Galf
M00554 UDP-Gal biosynthesis, Gal => UDP-Gal
M01000 GDP-Man biosynthesis, Fru-6P => GDP-Man
M01015 GDP-Man biosynthesis, Man => GDP-Man

Glycan biosynthesis
M00055 N-glycan precursor biosynthesis
M00073 N-glycan precursor trimming

Metabolism of cofactors and vitamins
Cofactor and vitamin metabolism
M00898 Thiamine biosynthesis, pyridoxal-5P => TMP/thiamine/TPP
M00911 Riboflavin biosynthesis, fungi, GTP => riboflavin/FMN/FAD
M00916 Pyridoxal phosphate biosynthesis, R5P + glyceraldehyde-3P + glutamine => pyridoxal-P
M00123 Biotin biosynthesis, pimeloyl-ACP/CoA => biotin
M00882 Lipoic acid biosynthesis, eukaryotes, octanoyl-ACP => dihydrolipoyl-H
M00141 C1-unit interconversion, eukaryotes
M00868 Heme biosynthesis, animals and fungi, glycine => heme
M00128 Ubiquinone biosynthesis, eukaryotes, 4-hydroxybenzoate + polyprenyl-PP => ubiquinone

Biosynthesis of terpenoids and polyketides
Terpenoid backbone biosynthesis
M00095 C5 isoprenoid biosynthesis, mevalonate pathway
M00367 C10-C20 isoprenoid biosynthesis, non-plant eukaryotes

Biosynthesis of other secondary metabolites
Biosynthesis of phytochemical compounds
M00963 Chanoclavine aldehyde biosynthesis, tryptophan => chanoclavine-I aldehyde

Biosynthesis of beta-lactams
M00672 Penicillin biosynthesis, aminoadipate + cycteine + valine => penicillin

Biosynthesis of other fungal compounds
M01070 Ferricrocin biosynthesis, ornithine => ferricrocin