| GOID Link to GO |
Functional Category | Description | Protein Count link to protein list |
|---|---|---|---|
| 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. | 34 |
| GO:0015012 | heparan sulfate proteoglycan biosynthetic process | The chemical reactions and pathways resulting in the formation of the heparan sulfate proteoglycan, a glycosaminoglycan with repeat unit consisting of alternating alpha-(1->4)-linked hexuronic acid and glucosamine residues; the former are a mixture of sulfated and nonsulfated D-glucuronic acid and L-iduronic acid; the L-iduronic acid is either sulfated or acetylated on its amino group as well as being sulfated on one of its hydroxyl groups; heparan sulfate chains are covalently linked to peptidyl-serine by a glycosidic attachment through the trisaccharide galactosyl-galactosyl-xylosyl to serine residues. | 8 |
| GO:0019344 | cysteine biosynthetic process | The chemical reactions and pathways resulting in the formation of cysteine, 2-amino-3-mercaptopropanoic acid. | 8 |
| GO:0046498 | S-adenosylhomocysteine metabolic process | The chemical reactions and pathways involving S-adenosylhomocysteine; the L-enantiomer is formed from S-adenosylmethionine and is a strong inhibitor of S-adenosylmethionine-mediated methylation reactions. It can be cleaved to form adenosine and homocysteine. | 6 |
| GO:0046500 | S-adenosylmethionine metabolic process | The chemical reactions and pathways involving S-adenosylmethionine, S-(5'-adenosyl)-L-methionine, an important intermediate in one-carbon metabolism. | 6 |
| GO:0051923 | sulfation | The addition of a sulfate group to a molecule. | 6 |
| 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. | 5 |
| GO:0015014 | heparan sulfate proteoglycan biosynthetic process, polysaccharide chain biosynthetic process | The chemical reactions and pathways resulting in the formation of polysaccharide chain component of heparan sulfate proteoglycan. | 5 |
| GO:0009086 | methionine biosynthetic process | The chemical reactions and pathways resulting in the formation of methionine (2-amino-4-(methylthio)butanoic acid), a sulfur-containing, essential amino acid found in peptide linkage in proteins. | 5 |
| GO:0009107 | lipoate biosynthetic process | The chemical reactions and pathways resulting in the formation of lipoate, 1,2-dithiolane-3-pentanoate, the anion derived from lipoic acid. | 5 |
| GO:0006750 | glutathione biosynthetic process | The chemical reactions and pathways resulting in the formation of 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. | 5 |
| GO:0030204 | chondroitin sulfate metabolic process | The chemical reactions and pathways involving chondroitin sulfate, any member of a group of 10-60 kDa glycosaminoglycans, widely distributed in cartilage and other mammalian connective tissues, the repeat units of which consist of beta-(1,4)-linked D-glucuronyl beta-(1,3)-N-acetyl-D-galactosamine sulfate. They usually occur linked to a protein to form proteoglycans. Two subgroups exist, one in which the sulfate is on the 4-position (chondroitin sulfate A) and the second in which it is in the 6-position (chondroitin sulfate C). They often are polydisperse and often differ in the degree of sulfation from tissue to tissue. The chains of repeating disaccharide are covalently linked to the side chains of serine residues in the polypeptide backbone of a protein by a glycosidic attachment through the trisaccharide unit galactosyl-galactosyl-xylosyl. Chondroitin sulfate B is more usually known as dermatan sulfate. | 4 |
| GO:0042343 | indole glucosinolate metabolic process | The chemical reactions and pathways resulting in the formation of indole glucosinolates. Glucosinolates are sulfur-containing compounds that have a common structure linked to an R group derived from tryptophan; indoles are biologically active substances based on 2,3-benzopyrrole, formed during the catabolism of tryptophan. | 4 |
| GO:0006477 | protein sulfation | The addition of a sulfate group as an ester to a protein amino acid. | 4 |
| GO:0009102 | biotin biosynthetic process | The chemical reactions and pathways resulting in the formation of biotin, cis-tetrahydro-2-oxothieno(3,4-d)imidazoline-4-valeric acid. | 4 |
| GO:0042318 | penicillin biosynthetic process | The chemical reactions and pathways resulting in the formation of any antibiotic that contains the condensed beta-lactamthiazolidine ring system. | 4 |
| GO:0019509 | L-methionine salvage from methylthioadenosine | The generation of L-methionine (2-amino-4-(methylthio)butanoic acid) from methylthioadenosine. | 4 |
| GO:0019452 | L-cysteine catabolic process to taurine | The chemical reactions and pathways resulting in the breakdown of L-cysteine into other compounds, including taurine. | 3 |
| GO:0050650 | chondroitin sulfate proteoglycan biosynthetic process | The chemical reactions and pathways resulting in the formation of chondroitin sulfate proteoglycan, any glycoprotein whose glycosaminoglycan units are chondroitin sulfate. Chondroitin sulfates are a group of 10-60 kDa glycosaminoglycans, widely distributed in cartilage and other mammalian connective tissues; the repeat units consist of beta-(1,4)-linked D-glucuronyl beta-(1,3)-N-acetyl-D-galactosamine sulfate. | 3 |
| GO:0015015 | heparan sulfate proteoglycan biosynthetic process, enzymatic modification | The modification, often by sulfation, of sugars incorporated into heparan sulfate after polymerization. | 3 |
| GO:0010120 | camalexin biosynthetic process | The chemical reactions and pathways resulting in the formation of camalexin, an indole phytoalexin. | 2 |
| GO:0019448 | L-cysteine catabolic process | The chemical reactions and pathways resulting in the breakdown of L-cysteine, the L-enantiomer of 2-amino-3-mercaptopropanoic acid, i.e. (2R)-2-amino-3-mercaptopropanoic acid. | 2 |
| GO:0006534 | cysteine metabolic process | The chemical reactions and pathways involving cysteine, 2-amino-3-mercaptopropanoic acid. | 2 |
| GO:0030201 | heparan sulfate proteoglycan metabolic process | The chemical reactions and pathways involving any proteoglycan containing heparan sulfate, any member of a group of glycosaminoglycans that have repeat units consisting of alternating alpha-(1->4)-linked hexuronic acid and glucosamine residues, the former being a mixture of sulfated and nonsulfated D-glucuronic and L-iduronic acids, and the latter being either sulfated or acetylated on its amino group as well as sulfated on one of its hydroxyl groups. | 2 |
| GO:0000098 | sulfur amino acid catabolic process | The chemical reactions and pathways resulting in the breakdown of amino acids containing sulfur, comprising cysteine, methionine and selenocysteine. | 2 |
| GO:0006556 | S-adenosylmethionine biosynthetic process | The chemical reactions and pathways resulting in the formation of S-adenosylmethionine, S-(5'-adenosyl)-L-methionine, an important intermediate in one-carbon metabolism. | 2 |
| 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. | 2 |
| GO:0019761 | glucosinolate biosynthetic process | The chemical reactions and pathways resulting in the formation of glucosinolates, substituted thioglucosides found in rapeseed products and related cruciferae. | 2 |
| GO:0000103 | sulfate assimilation | The pathways by which inorganic sulfate is processed and incorporated into sulfated compounds. | 2 |
| GO:0030210 | heparin biosynthetic process | The chemical reactions and pathways resulting in the formation of heparin, any member of a group of glycosaminoglycans of average Mr (6000-20000), consisting predominantly of alternating alpha-(1->4)-linked D-galactose and N-acetyl-D-glucosamine-6-sulfate residues. | 2 |
| GO:0019417 | sulfur oxidation | The chemical reactions and pathways resulting the addition of oxygen to elemental sulfur. | 2 |
| GO:0006478 | peptidyl-tyrosine sulfation | The sulfation of peptidyl-tyrosine residues to form peptidyl-O4'-sulfo-L-tyrosine. | 2 |
| 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. | 2 |
| GO:0070814 | hydrogen sulfide biosynthetic process | The chemical reactions and pathways resulting in the formation of hydrogen sulfide, H2S. | 2 |
| GO:0009106 | lipoate metabolic process | The chemical reactions and pathways involving lipoate, 1,2-dithiolane-3-pentanoate, the anion derived from lipoic acid. | 2 |
| GO:0009087 | methionine catabolic process | The chemical reactions and pathways resulting in the breakdown of methionine (2-amino-4-(methylthio)butanoic acid), a sulfur-containing, essential amino acid found in peptide linkage in proteins. | 2 |
| GO:0070221 | sulfide oxidation, using sulfide:quinone oxidoreductase | A sulfide oxidation process that proceeds via the reaction catalyzed by sulfide:quinone oxidoreductase. | 2 |
| GO:0009228 | thiamine biosynthetic process | The chemical reactions and pathways resulting in the formation of thiamine (vitamin B1), a water soluble vitamin present in fresh vegetables and meats, especially liver. | 2 |
| GO:0033353 | S-adenosylmethionine cycle | A cyclic series of interconversions involving S-adenosylmethionine, S-adenosyl-L-homocysteine, L-cysteine, and L-methionine. Couples utilization of the methyl group of SAM with recycling of the homocysteinyl group and regeneration of methionine. | 1 |
| 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. | 1 |
| GO:0050654 | chondroitin sulfate proteoglycan metabolic process | The chemical reactions and pathways involving chondroitin sulfate proteoglycan, any glycoprotein whose glycosaminoglycan units are chondroitin sulfate. Chondroitin sulfates are a group of 10-60 kDa glycosaminoglycans, widely distributed in cartilage and other mammalian connective tissues; the repeat units consist of beta-(1,4)-linked D-glucuronyl beta-(1,3)-N-acetyl-D-galactosamine sulfate. | 1 |
| 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. | 1 |
| GO:0018146 | keratan sulfate biosynthetic process | The chemical reactions and pathways resulting in the formation of keratan sulfate, a glycosaminoglycan with repeat units consisting of beta-1,4-linked D-galactopyranosyl-beta-(1,4)-N-acetyl-D-glucosamine 6-sulfate and with variable amounts of fucose, sialic acid and mannose units; keratan sulfate chains are covalently linked by a glycosidic attachment through the trisaccharide galactosyl-galactosyl-xylose to peptidyl-threonine or serine residues. | 1 |
| GO:0019530 | taurine metabolic process | The chemical reactions and pathways involving taurine (2-aminoethanesulfonic acid), a sulphur-containing amino acid derivative important in the metabolism of fats. | 1 |
| GO:0050428 | 3'-phosphoadenosine 5'-phosphosulfate biosynthetic process | The chemical reactions and pathways resulting in the formation of 3'-phosphoadenosine 5'-phosphosulfate, a naturally occurring mixed anhydride. It is an intermediate in the formation of a variety of sulfo compounds in biological systems. | 1 |
| GO:0030202 | heparin metabolic process | The chemical reactions and pathways involving heparin, any member of a group of glycosaminoglycans found mainly as an intracellular component of mast cells. They are similar to heparan sulfates but are of somewhat higher average Mr (6000-20000) and contain fewer N-acetyl groups and more N-sulfate and O-sulfate groups; they may be attached in the same manner to protein, forming proteoglycans. They consist predominantly of alternating alpha-(1->4)-linked D-galactose and N-acetyl-D-glucosamine-6-sulfate residues. | 1 |
| GO:0019762 | glucosinolate catabolic process | The chemical reactions and pathways resulting in the breakdown of glucosinolates, substituted thioglucosides found in rapeseed products and related cruciferae. | 1 |
| GO:0000097 | sulfur amino acid biosynthetic process | The chemical reactions and pathways resulting in the formation of amino acids containing sulfur, comprising cysteine, methionine and selenocysteine. | 1 |
| GO:0050843 | S-adenosylmethionine catabolic process | The chemical reactions and pathways resulting in the breakdown of S-adenosylmethionine, S-(5'-adenosyl)-L-methionine, an important intermediate in one-carbon metabolism. | 1 |
| GO:0019343 | cysteine biosynthetic process via cystathionine | The chemical reactions and pathways resulting in the formation of cysteine, via the intermediate cystathionine. | 1 |
| GO:0043418 | homocysteine catabolic process | The chemical reactions and pathways resulting in the breakdown of homocysteine, the amino acid alpha-amino-gamma-mercaptobutanoic acid. | 1 |
| GO:0019279 | L-methionine biosynthetic process from L-homoserine via cystathionine | The chemical reactions and pathways resulting in the formation of L-methionine from other compounds, including L-homoserine, via the intermediate cystathionine. | 1 |
| GO:0044272 | sulfur compound biosynthetic process | The chemical reactions and pathways resulting in the formation of compounds that contain sulfur, such as the amino acids methionine and cysteine or the tripeptide glutathione. | 1 |
| GO:0030200 | heparan sulfate proteoglycan catabolic process | The chemical reactions and pathways resulting in the breakdown of proteoglycan containing heparan sulfate, any member of a group of glycosaminoglycans that have repeat units consisting of alternating alpha-(1->4) linked hexuronic acid and glucosamine residues, the former being a mixture of sulfated and nonsulfated D-glucuronic and L-iduronic acids, and the latter being either sulfated or acetylated on its amino group as well as sulfated on one of its hydroxyl groups. | 1 |
| GO:0009093 | cysteine catabolic process | The chemical reactions and pathways resulting in the breakdown of cysteine, 2-amino-3-mercaptopropanoic acid. | 1 |
| GO:0030206 | chondroitin sulfate biosynthetic process | The chemical reactions and pathways resulting in the formation of chondroitin sulfate, any member of a group of 10-60 kDa glycosaminoglycans, widely distributed in cartilage and other mammalian connective tissues, the repeat units of which consist of beta-(1,4)-linked D-glucuronyl beta-(1,3)-N-acetyl-D-galactosamine sulfate. | 1 |
| 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. | 1 |
| GO:0050427 | 3'-phosphoadenosine 5'-phosphosulfate metabolic process | The chemical reactions and pathways involving 3'-phosphoadenosine 5'-phosphosulfate, a naturally occurring mixed anhydride. It is an intermediate in the formation of a variety of sulfo compounds in biological systems. | 1 |
| GO:0044273 | sulfur compound catabolic process | The chemical reactions and pathways resulting in the breakdown of compounds that contain sulfur, such as the amino acids methionine and cysteine or the tripeptide glutathione. | 1 |
| GO:0046499 | S-adenosylmethioninamine metabolic process | The chemical reactions and pathways involving S-adenosylmethioninamine, (5-deoxy-5-adenosyl)(3-aminopropyl) methylsulfonium salt. | 1 |