Go terms map to parent GO term: GO:0008152   other metabolic process
GOID
Link to GO
 Functional Category Description Protein Count
link to
protein list
GO:0055114 oxidation-reduction process A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons. 1318
GO:0044281 small molecule metabolic process The chemical reactions and pathways involving small molecules, any low molecular weight, monomeric, non-encoded molecule. 367
GO:0044238 primary metabolic process The chemical reactions and pathways involving those compounds which are formed as a part of the normal anabolic and catabolic processes. These processes take place in most, if not all, cells of the organism. 280
GO:0005975 carbohydrate metabolic process The chemical reactions and pathways involving carbohydrates, any of a group of organic compounds based of the general formula Cx(H2O)y. Includes the formation of carbohydrate derivatives by the addition of a carbohydrate residue to another molecule. 269
GO:0044237 cellular metabolic process The chemical reactions and pathways by which individual cells transform chemical substances. 219
GO:0006084 acetyl-CoA metabolic process The chemical reactions and pathways involving acetyl-CoA, a derivative of coenzyme A in which the sulfhydryl group is acetylated; it is a metabolite derived from several pathways (e.g. glycolysis, fatty acid oxidation, amino-acid catabolism) and is further metabolized by the tricarboxylic acid cycle. It is a key intermediate in lipid and terpenoid biosynthesis. 212
GO:0006629 lipid metabolic process The chemical reactions and pathways involving lipids, compounds soluble in an organic solvent but not, or sparingly, in an aqueous solvent. Includes fatty acids; neutral fats, other fatty-acid esters, and soaps; long-chain (fatty) alcohols and waxes; sphingoids and other long-chain bases; glycolipids, phospholipids and sphingolipids; and carotenes, polyprenols, sterols, terpenes and other isoprenoids. 196
GO:0034641 cellular nitrogen compound metabolic process The chemical reactions and pathways involving various organic and inorganic nitrogenous compounds, as carried out by individual cells. 165
GO:0009308 amine metabolic process The chemical reactions and pathways involving any organic compound that is weakly basic in character and contains an amino or a substituted amino group, as carried out by individual cells. Amines are called primary, secondary, or tertiary according to whether one, two, or three carbon atoms are attached to the nitrogen atom. 163
GO:1901360 organic cyclic compound metabolic process The chemical reactions and pathways involving organic cyclic compound. 162
GO:0044710 single-organism metabolic process A metabolic process - chemical reactions and pathways, including anabolism and catabolism, by which living organisms transform chemical substances - which involves a single organism. 154
GO:0010467 gene expression The process in which a gene's sequence is converted into a mature gene product or products (proteins or RNA). This includes the production of an RNA transcript as well as any processing to produce a mature RNA product or an mRNA (for protein-coding genes) and the translation of that mRNA into protein. Some protein processing events may be included when they are required to form an active form of a product from an inactive precursor form. 154
GO:0006805 xenobiotic metabolic process The chemical reactions and pathways involving a xenobiotic compound, a compound foreign to living organisms. Used of chemical compounds, e.g. a xenobiotic chemical, such as a pesticide. 154
GO:0071704 organic substance metabolic process The chemical reactions and pathways involving an organic substance, any molecular entity containing carbon. 143
GO:0006725 cellular aromatic compound metabolic process The chemical reactions and pathways involving aromatic compounds, any organic compound characterized by one or more planar rings, each of which contains conjugated double bonds and delocalized pi electrons, as carried out by individual cells. 135
GO:0006766 vitamin metabolic process The chemical reactions and pathways involving vitamins. Vitamin is a general term for a number of unrelated organic substances that occur in many foods in small amounts and that are necessary in trace amounts for the normal metabolic functioning of the body. Vitamins may be water-soluble or fat-soluble and usually serve as components of coenzyme systems. 135
GO:0002679 respiratory burst involved in defense response A phase of elevated metabolic activity, during which oxygen consumption increases made as part of a defense response ; this leads to the production, by an NADH dependent system, of hydrogen peroxide (H2O2), superoxide anions and hydroxyl radicals. 135
GO:0046482 para-aminobenzoic acid metabolic process The chemical reactions and pathways involving para-aminobenzoic acid, an intermediate in the synthesis of folic acid, a compound which some organisms, e.g. prokaryotes, eukaryotic microbes, and plants, can synthesize de novo. Others, notably mammals, cannot. In yeast, it is present as a factor in the B complex of vitamins. 131
GO:0006749 glutathione metabolic process The chemical reactions and pathways involving glutathione, the tripeptide glutamylcysteinylglycine, which acts as a coenzyme for some enzymes and as an antioxidant in the protection of sulfhydryl groups in enzymes and other proteins; it has a specific role in the reduction of hydrogen peroxide (H2O2) and oxidized ascorbate, and it participates in the gamma-glutamyl cycle. 130
GO:0044036 cell wall macromolecule metabolic process The chemical reactions and pathways involving macromolecules forming, or destined to form, part of the cell wall. A cell wall is a rigid or semi-rigid envelope lying outside the cell membrane of plant, fungal and most prokaryotic cells, maintaining their shape and protecting them from osmotic lysis. 126
GO:0072593 reactive oxygen species metabolic process The chemical reactions and pathways involving a reactive oxygen species, any molecules or ions formed by the incomplete one-electron reduction of oxygen. They contribute to the microbicidal activity of phagocytes, regulation of signal transduction and gene expression, and the oxidative damage to biopolymers. 125
GO:0032259 methylation The process in which a methyl group is covalently attached to a molecule. 125
GO:0042180 cellular ketone metabolic process The chemical reactions and pathways involving any of a class of organic compounds that contain the carbonyl group, CO, and in which the carbonyl group is bonded only to carbon atoms, as carried out by individual cells. The general formula for a ketone is RCOR, where R and R are alkyl or aryl groups. 125
GO:0019748 secondary metabolic process The chemical reactions and pathways resulting in many of the chemical changes of compounds that are not necessarily required for growth and maintenance of cells, and are often unique to a taxon. In multicellular organisms secondary metabolism is generally carried out in specific cell types, and may be useful for the organism as a whole. In unicellular organisms, secondary metabolism is often used for the production of antibiotics or for the utilization and acquisition of unusual nutrients. 123
GO:0044260 cellular macromolecule metabolic process The chemical reactions and pathways involving macromolecules, any molecule of high relative molecular mass, the structure of which essentially comprises the multiple repetition of units derived, actually or conceptually, from molecules of low relative molecular mass, as carried out by individual cells. 121
GO:0070989 oxidative demethylation The process of removing one or more methyl groups from a molecule, involving the oxidation (i.e. electron loss) of one or more atoms in the substrate. 121
GO:0046483 heterocycle metabolic process The chemical reactions and pathways involving heterocyclic compounds, those with a cyclic molecular structure and at least two different atoms in the ring (or rings). 119
GO:0015979 photosynthesis The synthesis by organisms of organic chemical compounds, especially carbohydrates, from carbon dioxide (CO2) using energy obtained from light rather than from the oxidation of chemical compounds. 119
GO:0016310 phosphorylation The process of introducing a phosphate group into a molecule, usually with the formation of a phosphoric ester, a phosphoric anhydride or a phosphoric amide. 113
GO:0000096 sulfur amino acid metabolic process The chemical reactions and pathways involving amino acids containing sulfur, comprising cysteine, homocysteine, methionine and selenocysteine. 102
GO:0009072 aromatic amino acid family metabolic process The chemical reactions and pathways involving aromatic amino acid family, amino acids with aromatic ring (phenylalanine, tyrosine, tryptophan). 102
GO:1901564 organonitrogen compound metabolic process The chemical reactions and pathways involving organonitrogen compound. 101
GO:0023014 signal transduction by phosphorylation A process in which the transfer of one or more phosphate groups to a substrate transmits a signal to the phosphorylated substrate. 101
GO:0017144 drug metabolic process The chemical reactions and pathways involving a drug, a substance used in the diagnosis, treatment or prevention of a disease; as used here antibiotic substances (see antibiotic metabolism) are considered to be drugs, even if not used in medical or veterinary practice. 95
GO:0006090 pyruvate metabolic process The chemical reactions and pathways involving pyruvate, 2-oxopropanoate. 93
GO:0009850 auxin metabolic process The chemical reactions and pathways involving auxins, a group of plant hormones that regulate aspects of plant growth. 89
GO:0006108 malate metabolic process The chemical reactions and pathways involving malate, the anion of hydroxybutanedioic acid, a chiral hydroxydicarboxylic acid. The (+) enantiomer is an important intermediate in metabolism as a component of both the TCA cycle and the glyoxylate cycle. 80
GO:0008216 spermidine metabolic process The chemical reactions and pathways involving spermidine, N-(3-aminopropyl)-1,4-diaminobutane. 80
GO:0006733 oxidoreduction coenzyme metabolic process The chemical reactions and pathways involving coenzymes that are required, in addition to an enzyme and a substrate, for an oxidoreductase reaction to proceed. 79
GO:0032787 monocarboxylic acid metabolic process The chemical reactions and pathways involving monocarboxylic acids, any organic acid containing one carboxyl (COOH) group or anion (COO-). 78
GO:0006069 ethanol oxidation An ethanol metabolic process in which ethanol is converted to acetyl-CoA via acetaldehyde and acetate. 75
GO:0006807 nitrogen compound metabolic process The chemical reactions and pathways involving organic or inorganic compounds that contain nitrogen, including (but not limited to) nitrogen fixation, nitrification, denitrification, assimilatory/dissimilatory nitrate reduction and the interconversion of nitrogenous organic matter and ammonium. 69
GO:0009694 jasmonic acid metabolic process The chemical reactions and pathways involving jasmonic acid, a fatty acid derivative with the formula (1R-(1 alpha, 2 beta(Z)))-3-oxo-2-(2-pentenyl)cyclopentaneacetic acid. 67
GO:0045730 respiratory burst A phase of elevated metabolic activity, during which oxygen consumption increases; this leads to the production, by an NADH dependent system, of hydrogen peroxide (H2O2), superoxide anions and hydroxyl radicals. 67
GO:0006778 porphyrin-containing compound metabolic process The chemical reactions and pathways involving any member of a large group of derivatives or analogs of porphyrin. Porphyrins consists of a ring of four pyrrole nuclei linked each to the next at their alpha positions through a methine group. 66
GO:0006520 cellular amino acid metabolic process The chemical reactions and pathways involving amino acids, carboxylic acids containing one or more amino groups, as carried out by individual cells. 65
GO:0006139 nucleobase-containing compound metabolic process Any cellular metabolic process involving nucleobases, nucleosides, nucleotides and nucleic acids. 63
GO:0018874 benzoate metabolic process The chemical reactions and pathways involving benzoate, the anion of benzoic acid (benzenecarboxylic acid), a fungistatic compound widely used as a food preservative; it is conjugated to glycine in the liver and excreted as hippuric acid. 63
GO:0006730 one-carbon metabolic process The chemical reactions and pathways involving the transfer of one-carbon units in various oxidation states. 63
GO:1901615 organic hydroxy compound metabolic process The chemical reactions and pathways involving organic hydroxy compound. 59
GO:0043170 macromolecule metabolic process The chemical reactions and pathways involving macromolecules, any molecule of high relative molecular mass, the structure of which essentially comprises the multiple repetition of units derived, actually or conceptually, from molecules of low relative molecular mass. 57
GO:0006796 phosphate-containing compound metabolic process The chemical reactions and pathways involving the phosphate group, the anion or salt of any phosphoric acid. 56
GO:0006103 2-oxoglutarate metabolic process The chemical reactions and pathways involving oxoglutarate, the dianion of 2-oxoglutaric acid. It is a key constituent of the TCA cycle and a key intermediate in amino-acid metabolism. 54
GO:0009690 cytokinin metabolic process The chemical reactions and pathways involving cytokinins, a class of adenine-derived compounds that can function in plants as growth regulators. 53
GO:0070988 demethylation The process of removing one or more methyl groups from a molecule. 51
GO:0006555 methionine metabolic process The chemical reactions and pathways involving methionine (2-amino-4-(methylthio)butanoic acid), a sulfur-containing, essential amino acid found in peptide linkage in proteins. 49
GO:0006107 oxaloacetate metabolic process The chemical reactions and pathways involving oxaloacetate, the anion of oxobutanedioic acid, an important intermediate in metabolism, especially as a component of the TCA cycle. 49
GO:0001881 receptor recycling The process that results in the return of receptor molecules to an active state and an active cellular location after they have been stimulated by a ligand. An active state is when the receptor is ready to receive a signal. 48
GO:0009812 flavonoid metabolic process The chemical reactions and pathways involving flavonoids, a group of water-soluble phenolic derivatives containing a flavan skeleton including flavones, flavonols and flavanoids, and anthocyanins. 48
GO:0006637 acyl-CoA metabolic process The chemical reactions and pathways involving acyl-CoA, any derivative of coenzyme A in which the sulfhydryl group is in thiolester linkage with an acyl group. 47
GO:0019752 carboxylic acid metabolic process The chemical reactions and pathways involving carboxylic acids, any organic acid containing one or more carboxyl (COOH) groups or anions (COO-). 46
GO:0071615 oxidative deethylation The process of removing one or more ethyl groups from a molecule, involving the oxidation (i.e. electron loss) of one or more atoms in the substrate. 46
GO:0042128 nitrate assimilation The nitrogen metabolic process that encompasses the uptake of nitrate from the environment and reduction to ammonia, and results in the incorporation of nitrogen derived from nitrate into cellular substances. 46
GO:0006662 glycerol ether metabolic process The chemical reactions and pathways involving glycerol ethers, any anhydride formed between two organic hydroxy compounds, one of which is glycerol. 44
GO:0006066 alcohol metabolic process The chemical reactions and pathways involving alcohols, any of a class of compounds containing one or more hydroxyl groups attached to a saturated carbon atom. 43
GO:0042375 quinone cofactor metabolic process The chemical reactions and pathways involving quinone cofactors. 43
GO:0080024 indolebutyric acid metabolic process The chemical reactions and pathways involving indolebutyric acid, a compound that serves as an active or storage form of the hormone indole-3-acetic acid (an auxin) in many plants. 43
GO:0009058 biosynthetic process The chemical reactions and pathways resulting in the formation of substances; typically the energy-requiring part of metabolism in which simpler substances are transformed into more complex ones. 43
GO:0019538 protein metabolic process The chemical reactions and pathways involving a specific protein, rather than of proteins in general. Includes protein modification. 43
GO:0046283 anthocyanin-containing compound metabolic process The chemical reactions and pathways involving anthocyanins, any member of a group of intensely colored soluble glycosides of anthocyanidins that occur in plants. They are responsible from most of the scarlet, purple, mauve and blue coloring in higher plants, especially of flowers. 42
GO:0006790 sulfur compound metabolic process The chemical reactions and pathways involving the nonmetallic element sulfur or compounds that contain sulfur, such as the amino acids methionine and cysteine or the tripeptide glutathione. 42
GO:0006772 thiamine metabolic process The chemical reactions and pathways involving thiamine (vitamin B1), a water soluble vitamin present in fresh vegetables and meats, especially liver. 40
GO:0006536 glutamate metabolic process The chemical reactions and pathways involving glutamate, the anion of 2-aminopentanedioic acid. 40
GO:0006541 glutamine metabolic process The chemical reactions and pathways involving glutamine, 2-amino-4-carbamoylbutanoic acid. 40
GO:0048359 mucilage metabolic process involved seed coat development The chemical reactions and pathways involving mucilage that occur as part of seed coat development; mucilage is normally synthesized during seed coat development. 40
GO:0009437 carnitine metabolic process The chemical reactions and pathways involving carnitine (hydroxy-trimethyl aminobutyric acid), a compound that participates in the transfer of acyl groups across the inner mitochondrial membrane. 40
GO:0045149 acetoin metabolic process The chemical reactions and pathways involving acetoin, 3-hydroxy-2-butanone, often as part of a fermentation pathway or for use as a carbon source. 39
GO:0006102 isocitrate metabolic process The chemical reactions and pathways involving isocitrate, the anion of isocitric acid, 1-hydroxy-1,2,3-propanetricarboxylic acid. Isocitrate is an important intermediate in the TCA cycle and the glycoxylate cycle. 38
GO:0032957 inositol trisphosphate metabolic process The chemical reactions and pathways involving myo-inositol phosphate, 1,2,3,4,5,6-cyclohexanehexol, with three phosphate groups attached. 38
GO:0033306 phytol metabolic process The chemical reactions and pathways involving phytol, (2E,7R,11R)-3,7,11,15-tetramethylhexadec-2-en-1-ol. 38
GO:0033859 furaldehyde metabolic process The chemical reactions and pathways involving furaldehyde, a furan ring-containing aldehyde compound which can be formed from the thermal decomposition of biomass. 36
GO:0009438 methylglyoxal metabolic process The chemical reactions and pathways involving methylglyoxal, CH3-CO-CHO, the aldehyde of pyruvic acid. 35
GO:0019430 removal of superoxide radicals Any process involved in removing superoxide radicals (O2-) from a cell or organism, e.g. by conversion to dioxygen (O2) and hydrogen peroxide (H2O2). 33
GO:0010130 anaerobic ethylbenzene catabolic process The chemical reactions and pathways resulting in the breakdown of ethylbenzene, a benzene derivative with an ethyl group attached to the ring, which occurs in the absence of oxygen. 33
GO:0018894 dibenzo-p-dioxin metabolic process The chemical reactions and pathways involving dibenzo-p-dioxin, a substance composed of two benzene rings linked by two ether bonds. Dibenzo-p-dioxins are generated as by-products in the manufacturing of herbicides, insecticides, fungicides, paper pulp bleaching, and in incineration, and can accumulate in milk and throughout the food chain, creating significant health concern. 32
GO:0046415 urate metabolic process The chemical reactions and pathways involving urate, the anion of uric acid, 2,6,8-trioxypurine, the end product of purine metabolism in certain mammals and the main excretory product in uricotelic animals. 31
GO:0018958 phenol-containing compound metabolic process The chemical reactions and pathways involving a phenol, any compound containing one or more hydroxyl groups directly attached to an aromatic carbon ring. 31
GO:0006101 citrate metabolic process The chemical reactions and pathways involving citrate, 2-hydroxy-1,2,3-propanetricarboyxlate. Citrate is widely distributed in nature and is an important intermediate in the TCA cycle and the glyoxylate cycle. 30
GO:0009696 salicylic acid metabolic process The chemical reactions and pathways involving of salicylic acid (2-hydroxybenzoic acid), a derivative of benzoic acid. 30
GO:2000286 receptor internalization involved in canonical Wnt receptor signaling pathway A receptor internalization process that contributes to canonical Wnt receptor signaling pathway. 29
GO:0044598 doxorubicin metabolic process The chemical reactions and pathways involving doxorubicin, an anthracycline antibiotic, used in cancer chemotherapy. 29
GO:0042440 pigment metabolic process The chemical reactions and pathways involving pigment, any general or particular coloring matter in living organisms, e.g. melanin. 29
GO:0051554 flavonol metabolic process The chemical reactions and pathways involving flavonols, a member of a class of vascular pigments formed by consecutive oxidative processes from the flavonoid intermediates flavanones and dihydroflavonols. Flavonols are the most widespread of the flavonoids and have a wide array of physiological activities. 29
GO:0016311 dephosphorylation The process of removing one or more phosphoric (ester or anhydride) residues from a molecule. 29
GO:0044597 daunorubicin metabolic process The chemical reactions and pathways involving daunorubicin, a chemotherapeutic of the anthracycline family that is given as a treatment for some types of cancer. 29
GO:0030574 collagen catabolic process The proteolytic chemical reactions and pathways resulting in the breakdown of collagen in the extracellular matrix, usually carried out by proteases secreted by nearby cells. 29
GO:0006083 acetate metabolic process The chemical reactions and pathways involving acetate, the anion of acetic acid. 28
GO:0009056 catabolic process The chemical reactions and pathways resulting in the breakdown of substances, including the breakdown of carbon compounds with the liberation of energy for use by the cell or organism. 28
GO:0006002 fructose 6-phosphate metabolic process The chemical reactions and pathways involving fructose 6-phosphate, also known as F6P. The D-enantiomer is an important intermediate in glycolysis, gluconeogenesis, and fructose metabolism. 28
GO:0034077 butanediol metabolic process The chemical reactions and pathways involving butanediol; the biologically relevant isomer is 2,3-butanediol, CH3CH(OH)CH(OH)CH3. 27
GO:0006091 generation of precursor metabolites and energy The chemical reactions and pathways resulting in the formation of precursor metabolites, substances from which energy is derived, and any process involved in the liberation of energy from these substances. 25
GO:0051410 detoxification of nitrogen compound Any process that reduces or removes the toxicity of nitrogenous compounds which are dangerous or toxic. This includes the aerobic conversion of toxic compounds to harmless substances. 25
GO:0051156 glucose 6-phosphate metabolic process The chemical reactions and pathways involving glucose 6-phosphate, a monophosphorylated derivative of glucose with the phosphate group attached to C-6. 25
GO:0046653 tetrahydrofolate metabolic process The chemical reactions and pathways involving tetrahydrofolate, 5,6,7,8-tetrahydrofolic acid, a folate derivative bearing additional hydrogens on the pterin group. 24
GO:0006117 acetaldehyde metabolic process The chemical reactions and pathways involving acetaldehyde, a colorless, flammable liquid intermediate in the metabolism of alcohol. 24
GO:0072592 oxygen metabolic process The chemical reactions and pathways involving diatomic oxygen (O2). 23
GO:0046209 nitric oxide metabolic process The chemical reactions and pathways involving nitric oxide, nitrogen monoxide (NO), a colorless gas only slightly soluble in water. 23
GO:0000103 sulfate assimilation The pathways by which inorganic sulfate is processed and incorporated into sulfated compounds. 22
GO:0051186 cofactor metabolic process The chemical reactions and pathways involving a cofactor, a substance that is required for the activity of an enzyme or other protein. Cofactors may be inorganic, such as the metal atoms zinc, iron, and copper in certain forms, or organic, in which case they are referred to as coenzymes. Cofactors may either be bound tightly to active sites or bind loosely with the substrate. 22
GO:0043603 cellular amide metabolic process The chemical reactions and pathways involving an amide, any derivative of an oxoacid in which an acidic hydroxy group has been replaced by an amino or substituted amino group, as carried out by individual cells. 22
GO:0015994 chlorophyll metabolic process The chemical reactions and pathways involving chlorophyll, any compound of magnesium complexed in a porphyrin (tetrapyrrole) ring and which functions as a photosynthetic pigment. 22
GO:1901135 carbohydrate derivative metabolic process The chemical reactions and pathways involving carbohydrate derivative. 21
GO:0042445 hormone metabolic process The chemical reactions and pathways involving any hormone, naturally occurring substances secreted by specialized cells that affects the metabolism or behavior of other cells possessing functional receptors for the hormone. 20
GO:0009820 alkaloid metabolic process The chemical reactions and pathways involving alkaloids, nitrogen containing natural products which are not otherwise classified as peptides, nonprotein amino acids, amines, cyanogenic glycosides, glucosinolates, cofactors, phytohormones or primary metabolites (such as purine or pyrimidine bases). 20
GO:0019499 cyanide metabolic process The chemical reactions and pathways involving cyanide, NC-, the anion of hydrocyanic acid. Cyanide is a potent inhibitor of respiration, reacting with the ferric form of cytochrome aa3 and thus blocking the electron transport chain. 20
GO:0046292 formaldehyde metabolic process The chemical reactions and pathways involving formaldehyde (methanal, H2C=O), a colorless liquid or gas with a pungent odor, commonly used as a fixative or an antibacterial agent. 20
GO:0001887 selenium compound metabolic process The chemical reactions and pathways involving compounds that contain selenium, such as selenocysteine. 19
GO:0045213 neurotransmitter receptor metabolic process The chemical reactions and pathways involving neurotransmitter receptors. 19
GO:0006793 phosphorus metabolic process The chemical reactions and pathways involving the nonmetallic element phosphorus or compounds that contain phosphorus, usually in the form of a phosphate group (PO4). 19
GO:0006595 polyamine metabolic process The chemical reactions and pathways involving polyamines, any organic compound containing two or more amino groups. 19
GO:0006105 succinate metabolic process The chemical reactions and pathways involving succinate, also known as butanedioate or ethane dicarboxylate, the dianion of succinic acid. Succinate is an important intermediate in metabolism and a component of the TCA cycle. 19
GO:0019632 shikimate metabolic process The chemical reactions and pathways involving shikimate, (3R,4S,5R)--3,4,5-trihydroxycyclohex-1-ene-1-carboxylate, the anion of shikimic acid. It is an important intermediate in the biosynthesis of aromatic amino acids. 19
GO:0006573 valine metabolic process The chemical reactions and pathways involving valine, 2-amino-3-methylbutanoic acid. 18
GO:0019627 urea metabolic process The chemical reactions and pathways involving urea, the water soluble compound O=C-(NH2)2. 17
GO:0042554 superoxide anion generation The enzymatic generation of superoxide, the superoxide anion O2- (superoxide free radical), or any compound containing this species, by a cell in response to environmental stress, thereby mediating the activation of various stress-inducible signaling pathways. 17
GO:0009069 serine family amino acid metabolic process The chemical reactions and pathways involving amino acids of the serine family, comprising cysteine, glycine, homoserine, selenocysteine and serine. 17
GO:0019676 ammonia assimilation cycle The pathway by which ammonia is processed and incorporated into a cell. In an energy-rich (glucose-containing), nitrogen-poor environment, glutamine synthetase and glutamate synthase form an ammonia assimilatory cycle, in which ammonia is incorporated into L-glutamate to form L-glutamine, which then combines with alpha-ketoglutarate to regenerate L-glutamate. This ATP-dependent cycle is essential for nitrogen-limited growth and for steady-state growth with some sources of nitrogen. 17
GO:0030388 fructose 1,6-bisphosphate metabolic process The chemical reactions and pathways involving fructose 1,6-bisphosphate, also known as FBP. The D enantiomer is a metabolic intermediate in glycolysis and gluconeogenesis. 17
GO:0006591 ornithine metabolic process The chemical reactions and pathways involving ornithine, an amino acid only rarely found in proteins, but which is important in living organisms as an intermediate in the reactions of the urea cycle and in arginine biosynthesis. 17
GO:0006003 fructose 2,6-bisphosphate metabolic process The chemical reactions and pathways involving fructose 2,6-bisphosphate. The D enantiomer is an important regulator of the glycolytic and gluconeogenic pathways. It inhibits fructose 1,6-bisphosphatase and activates phosphofructokinase. 16
GO:0006081 cellular aldehyde metabolic process The chemical reactions and pathways involving aldehydes, any organic compound with the formula R-CH=O, as carried out by individual cells. 16
GO:0046655 folic acid metabolic process The chemical reactions and pathways involving folic acid, pteroylglutamic acid. Folic acid is widely distributed as a member of the vitamin B complex and is essential for the synthesis of purine and pyrimidines. 16
GO:0033076 isoquinoline alkaloid metabolic process The chemical reactions and pathways involving isoquinoline alkaloids, alkaloid compounds that contain bicyclic N-containing aromatic rings and are derived from a 3,4-dihydroxytyramine (dopamine) precursor that undergoes a Schiff base addition with aldehydes of different origin. 15
GO:0006551 leucine metabolic process The chemical reactions and pathways involving leucine, 2-amino-4-methylpentanoic acid. 15
GO:0006568 tryptophan metabolic process The chemical reactions and pathways involving tryptophan, the chiral amino acid 2-amino-3-(1H-indol-3-yl)propanoic acid. 15
GO:0046487 glyoxylate metabolic process The chemical reactions and pathways involving glyoxylate, the anion of glyoxylic acid, HOC-COOH. 15
GO:0035999 tetrahydrofolate interconversion The chemical reactions and pathways by which one-carbon (C1) units are transferred between tetrahydrofolate molecules, to synthesise other tetrahydrofolate molecules. 15
GO:0034754 cellular hormone metabolic process The chemical reactions and pathways involving any hormone, naturally occurring substances secreted by specialized cells that affects the metabolism or behavior of other cells possessing functional receptors for the hormone, as carried out by individual cells. 14
GO:0043436 oxoacid metabolic process The chemical reactions and pathways involving any oxoacid; an oxoacid is a compound which contains oxygen, at least one other element, and at least one hydrogen bound to oxygen, and which produces a conjugate base by loss of positive hydrogen ion(s) (hydrons). 14
GO:0019379 sulfate assimilation, phosphoadenylyl sulfate reduction by phosphoadenylyl-sulfate reductase (thioredoxin) The pathway by which inorganic sulfate is processed and incorporated into sulfated compounds, where the phosphoadenylyl sulfate reduction step is catalyzed by the enzyme phosphoadenylyl-sulfate reductase (thioredoxin) (EC:1.8.4.8). 14
GO:1901605 alpha-amino acid metabolic process The chemical reactions and pathways involving an alpha-amino acid. 14
GO:0006576 cellular biogenic amine metabolic process The chemical reactions and pathways occurring at the level of individual cells involving any of a group of naturally occurring, biologically active amines, such as norepinephrine, histamine, and serotonin, many of which act as neurotransmitters. 13
GO:0006106 fumarate metabolic process The chemical reactions and pathways involving fumarate, the anion of trans-1,2-ethenedicarboxylic acid, the diastereoisomer of maleate. It is a key intermediate in metabolism and is formed in the TCA cycle from succinate and converted into malate. 13
GO:0042168 heme metabolic process The chemical reactions and pathways involving heme, any compound of iron complexed in a porphyrin (tetrapyrrole) ring. 13
GO:0090346 cellular organofluorine metabolic process The chemical reactions and pathways involving organofluorine compounds, as carried out by individual cells. 13
GO:0018924 mandelate metabolic process The chemical reactions and pathways involving mandelate, the anion of mandelic acid. Mandelic acid (alpha-hydroxybenzeneacetic acid) is an 8-carbon alpha-hydroxy acid (AHA) that is used in organic chemistry and as a urinary antiseptic. 13
GO:0008218 bioluminescence The production of light by certain enzyme-catalyzed reactions in cells. 13
GO:0042133 neurotransmitter metabolic process The chemical reactions and pathways involving neurotransmitters, any of a group of substances that are released on excitation from the axon terminal of a presynaptic neuron of the central or peripheral nervous system and travel across the synaptic cleft to either excite or inhibit the target cell. 13
GO:0006067 ethanol metabolic process The chemical reactions and pathways involving ethanol, CH3-CH2-OH, a colorless, water-miscible, flammable liquid produced by alcoholic fermentation. 12
GO:0019637 organophosphate metabolic process The chemical reactions and pathways involving organophosphates, any phosphate-containing organic compound. 12
GO:0006534 cysteine metabolic process The chemical reactions and pathways involving cysteine, 2-amino-3-mercaptopropanoic acid. 12
GO:0043648 dicarboxylic acid metabolic process The chemical reactions and pathways involving dicarboxylic acids, any organic acid containing two carboxyl (COOH) groups or anions (COO-). 12
GO:0044106 cellular amine metabolic process The chemical reactions and pathways involving any organic compound that is weakly basic in character and contains an amino or a substituted amino group, as carried out by individual cells. Amines are called primary, secondary, or tertiary according to whether one, two, or three carbon atoms are attached to the nitrogen atom. 12
GO:0097164 ammonium ion metabolic process The chemical reactions and pathways involving the ammonium ion. 12
GO:0006082 organic acid metabolic process The chemical reactions and pathways involving organic acids, any acidic compound containing carbon in covalent linkage. 12
GO:0018963 phthalate metabolic process The chemical reactions and pathways involving phthalate, the anion of phthalic acid. Phthalic acid diesters are used industrially in the production of a variety of household and consumer goods including plastic polymers, lubricating oils, and carriers for perfumes in cosmetics, while phthalic acid itself is used industrially as a plasticizer. Terephthalate is used in the synthesis of polyethylene terephthalate (polyethene terephthlate, abbreviated PET or PETE), a plastic polymer with many commercial uses. 11
GO:0006549 isoleucine metabolic process The chemical reactions and pathways involving isoleucine, (2R*,3R*)-2-amino-3-methylpentanoic acid. 11
GO:0018885 carbon tetrachloride metabolic process The chemical reactions and pathways involving carbon tetrachloride, a toxic, carcinogenic compound which is used as a general solvent in industrial degreasing operations. It is also used as grain fumigant and a chemical intermediate in the production of refrigerants. 11
GO:0006760 folic acid-containing compound metabolic process The chemical reactions and pathways involving a folic acid-containing compound, i.e. any of a group of heterocyclic compounds based on the pteroic acid skeleton conjugated with one or more L-glutamic acid or L-glutamate units. 11
GO:0044259 multicellular organismal macromolecule metabolic process The chemical reactions and pathways involving macromolecules, large molecules including proteins, nucleic acids and carbohydrates, in multicellular organisms occurring at the tissue, organ, or organismal level. 11
GO:0006525 arginine metabolic process The chemical reactions and pathways involving arginine, 2-amino-5-(carbamimidamido)pentanoic acid. 11
GO:0015977 carbon fixation A metabolic process in which carbon (usually derived from carbon dioxide) is incorporated into organic compounds (usually carbohydrates). 11
GO:0050667 homocysteine metabolic process The chemical reactions and pathways involving homocysteine, the amino acid alpha-amino-gamma-mercaptobutanoic acid. Homocysteine is an important intermediate in the metabolic reactions of its S-methyl derivative, methionine. 11
GO:0018919 gamma-1,2,3,4,5,6-hexachlorocyclohexane metabolic process The chemical reactions and pathways involving gamma-1,2,3,4,5,6-hexachlorocyclohexane (also known as Lindane), the most common form of hexachlorohexane, a halogenated organic insecticide that has been used worldwide for agriculture and public health. 11
GO:0072524 pyridine-containing compound metabolic process The chemical reactions and pathways involving a pyridine-containing compound, i.e. any compound that contains pyridine or a formal derivative thereof. 10
GO:0019516 lactate oxidation The chemical reactions and pathways resulting in the conversion of lactate to other compounds, such as pyruvate, with concomitant loss of electrons. 10
GO:0042360 vitamin E metabolic process The chemical reactions and pathways involving vitamin E, tocopherol, which includes a series of eight structurally similar compounds. Alpha-tocopherol is the most active form in humans and is a powerful biological antioxidant. 10
GO:0006797 polyphosphate metabolic process The chemical reactions and pathways involving a polyphosphate, the anion or salt of polyphosphoric acid. 10
GO:0033473 indoleacetic acid conjugate metabolic process The chemical reactions and pathways involving any indole-3-acetic acid conjugate, a form of indoleacetic acid covalently bound to another molecule. 10
GO:0009081 branched-chain amino acid metabolic process The chemical reactions and pathways involving amino acids containing a branched carbon skeleton, comprising isoleucine, leucine and valine. 10
GO:0002031 G-protein coupled receptor internalization The process that results in the uptake of a G-protein coupled receptor into an endocytic vesicle. 10
GO:0019346 transsulfuration The interconversion of homocysteine and cysteine via cystathionine. In contrast with enteric bacteria and mammals, Saccharomyces cerevisiae has two transsulfuration pathways employing two separate sets of enzymes. 10
GO:0006104 succinyl-CoA metabolic process The chemical reactions and pathways involving succinyl-CoA, a compound composed of the monovalent acyl group 3-carboxypropanoyl, derived from succinic acid by loss of one OH group, linked to coenzyme A. 9
GO:0006570 tyrosine metabolic process The chemical reactions and pathways involving tyrosine, an aromatic amino acid, 2-amino-3-(4-hydroxyphenyl)propanoic acid. 9
GO:0009445 putrescine metabolic process The chemical reactions and pathways involving putrescine, 1,4-diaminobutane; putrescine can be formed by decarboxylation of ornithine and is the metabolic precursor of spermidine and spermine. 9
GO:0009399 nitrogen fixation The process in which nitrogen is taken from its relatively inert molecular form (N2) in the atmosphere and converted into nitrogen compounds useful for other chemical processes, such as ammonia, nitrate and nitrogen dioxide. 9
GO:0006560 proline metabolic process The chemical reactions and pathways involving proline (pyrrolidine-2-carboxylic acid), a chiral, cyclic, nonessential alpha-amino acid found in peptide linkage in proteins. 9
GO:0006089 lactate metabolic process The chemical reactions and pathways involving lactate, the anion of lactic acid. 9
GO:0046501 protoporphyrinogen IX metabolic process The chemical reactions and pathways involving protoporphyrinogen IX, the specific substrate for the enzyme ferrochelatase, which catalyzes the insertion of iron to form protoheme. It is probably also the substrate for chlorophyll formation. 9
GO:0042537 benzene-containing compound metabolic process The chemical reactions and pathways involving benzene, C6H6, a volatile, very inflammable liquid, contained in the naphtha produced by the destructive distillation of coal, from which it is separated by fractional distillation, or any of its derivatives. 8
GO:0034311 diol metabolic process The chemical reactions and pathways involving a diol, a compound that contains two hydroxy groups, generally assumed to be, but not necessarily, alcoholic. 8
GO:0018979 trichloroethylene metabolic process The chemical reactions and pathways involving trichloroethylene, a toxic, colorless, photoreactive, chlorinated hydrocarbon liquid, commonly used as a metal degreaser and solvent. 8
GO:0070189 kynurenine metabolic process The chemical reactions and pathways involving kynurenine, the amino acid 3-(2-aminobenzoyl)-alanine. 8
GO:0051923 sulfation The addition of a sulfate group to a molecule. 8
GO:0019255 glucose 1-phosphate metabolic process The chemical reactions and pathways involving glucose 1-phosphate, a monophosphorylated derivative of glucose with the phosphate group attached to C-1. 8
GO:0015942 formate metabolic process The chemical reactions and pathways involving formate, also known as methanoate, the anion HCOO- derived from methanoic (formic) acid. 7
GO:0006522 alanine metabolic process The chemical reactions and pathways involving alanine, 2-aminopropanoic acid. 7
GO:0015939 pantothenate metabolic process The chemical reactions and pathways involving pantothenate, the anion of pantothenic acid, the amide of beta-alanine and pantoic acid. It is a B complex vitamin that is a constituent of coenzyme A and is distributed ubiquitously in foods. 7
GO:0035336 long-chain fatty-acyl-CoA metabolic process The chemical reactions and pathways involving long-chain fatty-acyl-CoAs, any derivative of coenzyme A in which the sulfhydryl group is in a thioester linkage with a long-chain fatty-acyl group. Long-chain fatty-acyl-CoAs have chain lengths of C13 or more. 7
GO:0006767 water-soluble vitamin metabolic process The chemical reactions and pathways involving any of a diverse group of vitamins that are soluble in water. 7
GO:0010126 mycothiol metabolic process The chemical reactions and pathways involving mycothiol, which consists of N-acetyl-L-cysteine linked to a pseudodisaccharide, D-glucosamine and myo-inositol. Mycothiol is produced in actinomycetes like mycobacteria and serves similar functions to glutathione. 7
GO:0072521 purine-containing compound metabolic process The chemical reactions and pathways involving a purine-containing compound, i.e. any compound that contains purine or a formal derivative thereof. 7
GO:0070221 sulfide oxidation, using sulfide:quinone oxidoreductase A sulfide oxidation process that proceeds via the reaction catalyzed by sulfide:quinone oxidoreductase. 7
GO:0001692 histamine metabolic process The chemical reactions and pathways involving histamine, a physiologically active amine, found in plant and animal tissue and released from mast cells as part of an allergic reaction in humans. 6
GO:0033528 S-methylmethionine cycle A cyclic series of interconversions involving S-methyl-L-methionine, S-adenosyl-L-homocysteine, S-adenosyl-L-methionine, L-homocysteine, and L-methionine. Converts the methionine group of adenosylmethionine back to free methionine, and may serve regulate the cellular adenosylmethionine level. 6
GO:0006044 N-acetylglucosamine metabolic process The chemical reactions and pathways involving N-acetylglucosamine. The D isomer is a common structural unit of glycoproteins in plants, bacteria and animals; it is often the terminal sugar of an oligosaccharide group of a glycoprotein. 6
GO:0006040 amino sugar metabolic process The chemical reactions and pathways involving any amino sugar, sugars containing an amino group in place of a hydroxyl group. 6
GO:0019482 beta-alanine metabolic process The chemical reactions and pathways involving beta-alanine (3-aminopropanoic acid), an achiral amino acid and an isomer of alanine. It occurs free (e.g. in brain) and in combination (e.g. in pantothenate) but it is not a constituent of proteins. 6
GO:2001289 lipid X metabolic process The chemical reactions and pathways involving lipid X, 2,3-diacylglucosamine 1-phosphate. 6
GO:0006547 histidine metabolic process The chemical reactions and pathways involving histidine, 2-amino-3-(1H-imidazol-4-yl)propanoic acid. 6
GO:0046452 dihydrofolate metabolic process The chemical reactions and pathways involving dihydrofolate, the dihydroxylated derivative of folate. 5
GO:0046900 tetrahydrofolylpolyglutamate metabolic process The chemical reactions and pathways involving tetrahydrofolylpolyglutamate, a folate derivative comprising tetrahydrofolate attached to a chain of glutamate residues. 5
GO:0031179 peptide modification The covalent alteration of one or more amino acid residues within a peptide, resulting in a change in the properties of that peptide. 5
GO:0052314 phytoalexin metabolic process The chemical reactions and pathways involving phytoalexins, any of a range of substances produced by plants as part of their defense response. 5
GO:0051068 dihydrolipoamide metabolic process The chemical reactions and pathways involving dihydrolipoamide, the reduced form of lipoamide, produced as an intermediate in the reactions in which lipoamide acts as a cofactor. 5
GO:0043647 inositol phosphate metabolic process The chemical reactions and pathways involving inositol phosphate, 1,2,3,4,5,6-cyclohexanehexol, with one or more phosphate groups attached. 5
GO:0043412 macromolecule modification The covalent alteration of one or more monomeric units in a polypeptide, polynucleotide, polysaccharide, or other biological macromolecule, resulting in a change in its properties. 5
GO:0042403 thyroid hormone metabolic process The chemical reactions and pathways involving any of the compounds secreted by the thyroid gland, largely thyroxine and triiodothyronine. 5
GO:0042373 vitamin K metabolic process The chemical reactions and pathways involving any of the forms of vitamin K, quinone-derived vitamins which are involved in the synthesis of blood-clotting factors in mammals. Vitamin K substances share a methylated naphthoquinone ring structure and vary in the aliphatic side chains attached to the molecule. 5
GO:0006072 glycerol-3-phosphate metabolic process The chemical reactions and pathways involving glycerol-3-phosphate, a phosphoric monoester of glycerol. 5
GO:0050435 beta-amyloid metabolic process The chemical reactions and pathways involving beta-amyloid, a glycoprotein associated with Alzheimer's disease, and its precursor, amyloid precursor protein (APP). 5
GO:0016259 selenocysteine metabolic process The chemical reactions and pathways involving selenocysteine, an essential component of glutathione peroxidase and some other proteins. 5
GO:0042126 nitrate metabolic process The chemical reactions and pathways involving nitrates, inorganic or organic salts and esters of nitric acid. 5
GO:0019693 ribose phosphate metabolic process The chemical reactions and pathways involving ribose phosphate, any phosphorylated ribose sugar. 4
GO:0043427 carbon fixation by 3-hydroxypropionate cycle An autotrophic carbon dioxide fixation pathway by which two molecules of carbon dioxide are fixed to form glyoxylate. Acetyl coenzyme A (acetyl-CoA) is assumed to be converted to malate, and two CO2 molecules are thereby fixed. Malyl-CoA is thought to be cleaved to acetyl-CoA, the starting molecule, and glyoxylate, the carbon fixation product. 4
GO:0006566 threonine metabolic process The chemical reactions and pathways involving threonine (2-amino-3-hydroxybutyric acid), a polar, uncharged, essential amino acid found in peptide linkage in proteins. 4
GO:0018920 glyphosate metabolic process The chemical reactions and pathways involving glyphosate, a broad-spectrum herbicide also known by the trade name Roundup. It is a member of a broad class of compounds known as phosphonic acids, which contain a direct carbon-to-phosphorus (C-P) bond. 4
GO:0033609 oxalate metabolic process The chemical reactions and pathways involving oxalate, the organic acid ethanedioate. 4
GO:0006518 peptide metabolic process The chemical reactions and pathways involving peptides, compounds of two or more amino acids where the alpha carboxyl group of one is bound to the alpha amino group of another. 4
GO:0018960 4-nitrophenol metabolic process The chemical reactions and pathways involving 4-nitrophenol, a nitroaromatic compound which is used in the production of dyes, leather treatment agents, fungicides and as an intermediate in the production of the insecticide parathion. 4
GO:0006732 coenzyme metabolic process The chemical reactions and pathways involving coenzymes, any of various nonprotein organic cofactors that are required, in addition to an enzyme and a substrate, for an enzymatic reaction to proceed. 4
GO:0033354 chlorophyll cycle A cyclic series of interconversions involving chlorophyll a, chlorophyll b and several chlorophyllide intermediates. 4
GO:0000053 argininosuccinate metabolic process The chemical reactions and pathways involving argininosuccinate, 2-(N(omega)-arginino)succinate, an intermediate in the ornithine-urea cycle, where it is synthesized from citrulline and aspartate. 4
GO:0019751 polyol metabolic process The chemical reactions and pathways involving a polyol, any alcohol containing three or more hydroxyl groups attached to saturated carbon atoms. 4
GO:0006531 aspartate metabolic process The chemical reactions and pathways involving aspartate, the anion derived from aspartic acid, 2-aminobutanedioic acid. 4
GO:0018917 fluorene metabolic process The chemical reactions and pathways involving fluorene, a tricyclic polycyclic aromatic hydrocarbon containing a five-membered ring. It is a major component of fossil fuels and their derivatives and is also a by-product of coal-conversion and energy-related industries. It is commonly found in vehicle exhaust emissions, crude oils, motor oils, coal and oil combustion products, waste incineration, and industrial effluents. 4
GO:0035337 fatty-acyl-CoA metabolic process The chemical reactions and pathways involving a fatty-acyl-CoA, any derivative of coenzyme A in which the sulfhydryl group is in thiolester linkage with a fatty-acyl group. 4
GO:0030203 glycosaminoglycan metabolic process The chemical reactions and pathways involving glycosaminoglycans, any one of a group of polysaccharides that contain amino sugars. Formerly known as mucopolysaccharides, they include hyaluronic acid and chondroitin, which provide lubrication in joints and form part of the matrix of cartilage. The three-dimensional structure of these molecules enables them to trap water, which forms a gel and gives glycosaminoglycans their elastic properties. 4
GO:1901661 quinone metabolic process The chemical reactions and pathways involving quinone. 4
GO:0006584 catecholamine metabolic process The chemical reactions and pathways involving any of a group of physiologically important biogenic amines that possess a catechol (3,4-dihydroxyphenyl) nucleus and are derivatives of 3,4-dihydroxyphenylethylamine. 4
GO:2001057 reactive nitrogen species metabolic process The chemical reactions and pathways involving a reactive nitrogen species. 4
GO:1901038 cyanidin 3-O-glucoside metabolic process The chemical reactions and pathways involving cyanidin 3-O-beta-D-glucoside. 3
GO:0019254 carnitine metabolic process, CoA-linked The chemical reactions and pathways involving carnitine, where metabolism is linked to CoA. 3
GO:0010134 sulfate assimilation via adenylyl sulfate reduction The pathway by which inorganic sulfate is activated, reduced and incorporated into sulfated compounds, where the activated sulfate, adenylyl-sulfate, is reduced to sulfite by the activity of adenylyl-sulfate reductase. 3
GO:0018879 biphenyl metabolic process The chemical reactions and pathways involving biphenyl, a toxic aromatic hydrocarbon used as a heat transfer agent, as a fungistat in packaging citrus fruits and in plant disease control. Biphenyl can be chlorinated with 1-10 chlorine molecules to form polychlorinated biphenyls (PCBs). 3
GO:0019682 glyceraldehyde-3-phosphate metabolic process The chemical reactions and pathways involving glyceraldehyde-3-phosphate, an important intermediate in glycolysis. 3
GO:0046417 chorismate metabolic process The chemical reactions and pathways involving chorismate, the anion of (3R-trans)-3-((1-carboxyethenyl)oxy)-4-hydroxy-1,5-cyclohexadiene-1-carboxylic acid. 3
GO:0009092 homoserine metabolic process The chemical reactions and pathways involving homoserine, alpha-amino-gamma-hydroxybutyric acid, an intermediate in the biosynthesis of cystathionine, threonine and methionine. 3
GO:0042743 hydrogen peroxide metabolic process The chemical reactions and pathways involving hydrogen peroxide (H2O2), a potentially harmful byproduct of aerobic cellular respiration which can cause damage to DNA. 3
GO:0006563 L-serine metabolic process The chemical reactions and pathways involving L-serine, the L-enantiomer of serine, i.e. (2S)-2-amino-3-hydroxypropanoic acid. 3
GO:0009448 gamma-aminobutyric acid metabolic process The chemical reactions and pathways involving gamma-aminobutyric acid (GABA, 4-aminobutyrate), an amino acid which acts as a neurotransmitter in some organisms. 3
GO:0050898 nitrile metabolic process The chemical reactions and pathways involving nitriles, an organic compound containing trivalent nitrogen attached to one carbon atom. The nitriles are named with reference to the acids produced by their decomposition; for example, hydrocyanic acid is formic nitrile, and methyl cyanide is acetic nitrile. 3
GO:0042816 vitamin B6 metabolic process The chemical reactions and pathways involving any of the vitamin B6 compounds: pyridoxal, pyridoxamine and pyridoxine and the active form, pyridoxal phosphate. 3
GO:0016999 antibiotic metabolic process The chemical reactions and pathways involving an antibiotic, a substance produced by or derived from certain fungi, bacteria, and other organisms, that can destroy or inhibit the growth of other microorganisms. 3
GO:0016562 protein import into peroxisome matrix, receptor recycling The process in which peroxisome targeting sequence receptors dissociates from cargo proteins and are returned to the cytosol. 3
GO:0072527 pyrimidine-containing compound metabolic process The chemical reactions and pathways involving a pyrimidine-containing compound, i.e. any compound that contains pyrimidine or a formal derivative thereof. 2
GO:0009064 glutamine family amino acid metabolic process The chemical reactions and pathways involving amino acids of the glutamine family, comprising arginine, glutamate, glutamine and proline. 2
GO:0036112 medium-chain fatty-acyl-CoA metabolic process The chemical reactions and pathways involving medium-chain fatty-acyl-CoAs, any derivative of coenzyme A in which the sulfhydryl group is in a thioester linkage with a long-chain fatty-acyl group. A medium-chain fatty acid is a fatty acid with a chain length of between C6 and C12. 2
GO:0019695 choline metabolic process The chemical reactions and pathways involving choline (2-hydroxyethyltrimethylammonium), an amino alcohol that occurs widely in living organisms as a constituent of certain types of phospholipids and in the neurotransmitter acetylcholine. 2
GO:0006580 ethanolamine metabolic process The chemical reactions and pathways involving ethanolamine (2-aminoethanol), an important water-soluble base of phospholipid (phosphatidylethanolamine). 2
GO:0043414 macromolecule methylation The covalent attachment of a methyl residue to one or more monomeric units in a polypeptide, polynucleotide, polysaccharide, or other biological macromolecule. 2
GO:0019424 sulfide oxidation, using siroheme sulfite reductase A sulfide oxidation process that proceeds via the reaction catalyzed by siroheme sulfite reductase. 2
GO:0006748 lipoamide metabolic process The chemical reactions and pathways involving lipoamide, the functional form of lipoic acid in which the carboxyl group is attached to protein by an amide linkage to a lysine amino group. 2
GO:0010166 wax metabolic process The chemical reactions and pathways involving wax, a compound containing C16 and C18 fatty acids. 2
GO:1901657 glycosyl compound metabolic process The chemical reactions and pathways involving glycosyl compound. 2
GO:0042558 pteridine-containing compound metabolic process The chemical reactions and pathways involving any compound containing pteridine (pyrazino(2,3-dipyrimidine)), e.g. pteroic acid, xanthopterin and folic acid. 2
GO:0018931 naphthalene metabolic process The chemical reactions and pathways involving naphthalene, a fused ring bicyclic aromatic hydrocarbon commonly found in crude oil and oil products. Naphthalene is familiar as the compound that gives mothballs their odor; it is used in the manufacture of plastics, dyes, solvents, and other chemicals, as well as being used as an antiseptic and insecticide. 2
GO:0019419 sulfate reduction The chemical reactions and pathways resulting in the reduction of sulfate to another sulfur-containing ion or compound such as hydrogen sulfide, adenosine-phosphosulfate (APS) or thiosulfate. 2
GO:0042726 flavin-containing compound metabolic process The chemical reactions and pathways involving a flavin, any derivative of the dimethylisoalloxazine (7,8-dimethylbenzo[g]pteridine-2,4(3H,10H)-dione) skeleton, with a substituent on the 10 position. 2
GO:0046391 5-phosphoribose 1-diphosphate metabolic process The chemical reactions and pathways involving 5-phosphoribose 1-diphosphate, also known as 5-phosphoribosyl-1-pyrophosphate. 2
GO:0006544 glycine metabolic process The chemical reactions and pathways involving glycine, aminoethanoic acid. 2
GO:0019418 sulfide oxidation The chemical reactions and pathways resulting in the conversion of sulfide to elemental sulfur in a higher oxidation state, or to sulfite or sulfate. 1
GO:0042430 indole-containing compound metabolic process The chemical reactions and pathways involving compounds that contain an indole (2,3-benzopyrrole) skeleton. 1
GO:1901071 glucosamine-containing compound metabolic process The chemical reactions and pathways involving glucosamine-containing compounds (glucosamines). 1
GO:0070276 halogen metabolic process The chemical reactions and pathways involving any halogen, elements of Group VII; includes metabolism of halogen-containing compounds. 1
GO:0006769 nicotinamide metabolic process The chemical reactions and pathways involving nicotinamide, pyridine-3-carboxamide, the amide of nicotinic acid. It is a member of the B complex of vitamins and occurs widely in living organisms. 1
GO:0002536 respiratory burst involved in inflammatory response A phase of elevated metabolic activity, during which oxygen consumption increases following a stimulus as part of an inflammatory response; this leads to the production, by an NADH dependent system, of hydrogen peroxide (H2O2), superoxide anions and hydroxyl radicals, resulting in an increase in their intracellular or extracellular levels. 1
GO:0042439 ethanolamine-containing compound metabolic process The chemical reactions and pathways involving ethanolamine (2-aminoethanol) and compounds derived from it. 1
GO:0006801 superoxide metabolic process The chemical reactions and pathways involving superoxide, the superoxide anion O2- (superoxide free radical), or any compound containing this species. 1
GO:0006690 icosanoid metabolic process The chemical reactions and pathways involving icosanoids, any of a group of C20 polyunsaturated fatty acids. 1
GO:0015946 methanol oxidation The chemical reactions and pathways resulting in the conversion of methanol to methyl-Coenzyme M. 1
GO:0006553 lysine metabolic process The chemical reactions and pathways involving lysine, 2,6-diaminohexanoic acid. 1
GO:0042417 dopamine metabolic process The chemical reactions and pathways involving dopamine, a catecholamine neurotransmitter and a metabolic precursor of noradrenaline and adrenaline. 1
GO:0006775 fat-soluble vitamin metabolic process The chemical reactions and pathways involving of any of a diverse group of vitamins that are soluble in organic solvents and relatively insoluble in water. 1
GO:0034308 primary alcohol metabolic process The chemical reactions and pathways involving primary alcohols. A primary alcohol is any alcohol in which a hydroxy group, -OH, is attached to a saturated carbon atom which has either three hydrogen atoms attached to it or only one other carbon atom and two hydrogen atoms attached to it. 1
GO:0071344 diphosphate metabolic process The chemical reactions and pathways involving diphosphate, the anion or salt of diphosphoric acid. 1
GO:0070178 D-serine metabolic process The chemical reactions and pathways involving D-serine, the D-enantiomer of serine, i.e. (2R)-2-amino-3-hydroxypropanoic acid. 1
GO:0042618 poly-hydroxybutyrate metabolic process The chemical reactions and pathways involving poly-hydroxybutyrate (PHB), a polymer of beta-hydroxybutyrate and a common storage material of prokaryotic cells. 1
GO:0042851 L-alanine metabolic process The chemical reactions and pathways involving L-alanine, the L-enantiomer of 2-aminopropanoic acid, i.e. (2S)-2-aminopropanoic acid. 1
GO:0031623 receptor internalization A receptor-mediated endocytosis process that results in the movement of receptors from the plasma membrane to the inside of the cell. The process begins when cell surface receptors are monoubiquitinated following ligand-induced activation. Receptors are subsequently taken up into endocytic vesicles from where they are either targeted to the lysosome or vacuole for degradation or recycled back to the plasma membrane. 1
GO:0006041 glucosamine metabolic process The chemical reactions and pathways involving glucosamine (2-amino-2-deoxyglucopyranose), an aminodeoxysugar that occurs in combined form in chitin. 1
GO:0051552 flavone metabolic process The chemical reactions and pathways involving flavones, a class of pigmented plant compounds based on 2-phenyl-4H-1-benzopyran-4-one (2-phenylchromone). 1
GO:0030389 fructosamine metabolic process The chemical reactions and pathways involving fructosamine, a fructose molecule containing an amino group in place of a hydroxyl group. 1
GO:0015947 methane metabolic process The chemical reactions and pathways involving methane, a colorless, odorless, flammable gas with the formula CH4. It is the simplest of the alkanes. 1
GO:0030416 methylamine metabolic process The chemical reactions and pathways involving methylamine (CH3NH2). 1
GO:0042191 methylmercury metabolic process The chemical reactions and pathways involving methylmercury (MeHg+), a highly toxic organometal which can accumulate in tissues, particularly in fish species. 1