Page last updated: 2024-10-06

superpathway of L-methionine salvage and degradation

Proteins (28)

ProteinSynonymsTaxonomy
S-adenosylmethionine synthase isoform type-1AdoMet synthase 1; EC 2.5.1.6; Methionine adenosyltransferase 1; MAT 1; Methionine adenosyltransferase I/III; MAT-I/IIIHomo sapiens (human)
AdenosylhomocysteinaseAdoHcyase; EC 3.3.1.1; S-adenosyl-L-homocysteine hydrolaseRattus norvegicus (Norway rat)
S-adenosylmethionine synthase isoform type-1AdoMet synthase 1; EC 2.5.1.6; Methionine adenosyltransferase 1; MAT 1; Methionine adenosyltransferase I/III; MAT-I/IIIRattus norvegicus (Norway rat)
AdenosylhomocysteinaseAdoHcyase; EC 3.3.1.1; S-adenosyl-L-homocysteine hydrolaseHomo sapiens (human)
Propionyl-CoA carboxylase alpha chain, mitochondrialPCCase subunit alpha; EC 6.4.1.3; Propanoyl-CoA:carbon dioxide ligase subunit alphaHomo sapiens (human)
Propionyl-CoA carboxylase beta chain, mitochondrialPCCase subunit beta; EC 6.4.1.3; Propanoyl-CoA:carbon dioxide ligase subunit betaHomo sapiens (human)
Propionyl-CoA carboxylase beta chain, mitochondrialPCCase subunit beta; EC 6.4.1.3; Propanoyl-CoA:carbon dioxide ligase subunit betaRattus norvegicus (Norway rat)
Propionyl-CoA carboxylase alpha chain, mitochondrialPCCase subunit alpha; EC 6.4.1.3; Propanoyl-CoA:carbon dioxide ligase subunit alphaRattus norvegicus (Norway rat)
S-methylmethionine--homocysteine S-methyltransferase BHMT2SMM-hcy methyltransferase; EC 2.1.1.10; Betaine--homocysteine S-methyltransferase 2Homo sapiens (human)
Aspartate aminotransferase, cytoplasmiccAspAT; EC 2.6.1.1; EC 2.6.1.3; Cysteine aminotransferase, cytoplasmic; Cysteine transaminase, cytoplasmic; cCAT; Glutamate oxaloacetate transaminase 1; Transaminase AHomo sapiens (human)
S-adenosylmethionine synthase isoform type-2AdoMet synthase 2; EC 2.5.1.6; Methionine adenosyltransferase 2; MAT 2; Methionine adenosyltransferase II; MAT-IIHomo sapiens (human)
Betaine--homocysteine S-methyltransferase 1EC 2.1.1.5Homo sapiens (human)
Cystathionine beta-synthaseEC 4.2.1.22; Beta-thionase; Serine sulfhydraseHomo sapiens (human)
Methionine synthaseMS; EC 2.1.1.13; 5-methyltetrahydrofolate--homocysteine methyltransferase; Cobalamin-dependent methionine synthase; Vitamin-B12 dependent methionine synthaseHomo sapiens (human)
Aspartate aminotransferase, cytoplasmic cAspAT; EC 2.6.1.1; EC 2.6.1.3; Cysteine aminotransferase, cytoplasmic; Cysteine transaminase, cytoplasmic; cCAT; Glutamate oxaloacetate transaminase 1; Transaminase ARattus norvegicus (Norway rat)
Cystathionine beta-synthaseEC 4.2.1.22; Beta-thionase; Hemoprotein H-450; Serine sulfhydraseRattus norvegicus (Norway rat)
Cysteine dioxygenase type 1 EC 1.13.11.20; Cysteine dioxygenase type I; CDO; CDO-IRattus norvegicus (Norway rat)
Cysteine dioxygenase type 1EC 1.13.11.20; Cysteine dioxygenase type I; CDO; CDO-IHomo sapiens (human)
Methylmalonyl-CoA epimerase, mitochondrialEC 5.1.99.1; DL-methylmalonyl-CoA racemaseHomo sapiens (human)
Lipoamide acyltransferase component of branched-chain alpha-keto acid dehydrogenase complex, mitochondrialEC 2.3.1.168; 52 kDa mitochondrial autoantigen of primary biliary cirrhosis; Branched chain 2-oxo-acid dehydrogenase complex component E2; BCOADC-E2; Branched-chain alpha-keto acid dehydrogenase complex component E2; BCKAD-E2; BCKADE2; Dihydrolipoamide acHomo sapiens (human)
Dihydrolipoyl dehydrogenase, mitochondrialEC 1.8.1.4; Dihydrolipoamide dehydrogenase; Glycine cleavage system L proteinHomo sapiens (human)
Sulfite oxidase, mitochondrialEC 1.8.3.1Homo sapiens (human)
Methylmalonyl-CoA mutase, mitochondrialMCM; EC 5.4.99.2; Methylmalonyl-CoA isomeraseHomo sapiens (human)
Cystathionine gamma-lyaseEC 4.4.1.1; Cysteine-protein sulfhydrase; Gamma-cystathionase; Probasin-related antigen; PRB-RARattus norvegicus (Norway rat)
2-oxoisovalerate dehydrogenase subunit alpha, mitochondrialEC 1.2.4.4; Branched-chain alpha-keto acid dehydrogenase E1 component alpha chain; BCKDE1A; BCKDH E1-alphaHomo sapiens (human)
2-oxoisovalerate dehydrogenase subunit beta, mitochondrialEC 1.2.4.4; Branched-chain alpha-keto acid dehydrogenase E1 component beta chain; BCKDE1B; BCKDH E1-betaHomo sapiens (human)
Betaine--homocysteine S-methyltransferase 1EC 2.1.1.5Rattus norvegicus (Norway rat)
Methionine adenosyltransferase 2 subunit betaMethionine adenosyltransferase II beta; MAT II beta; Putative dTDP-4-keto-6-deoxy-D-glucose 4-reductaseHomo sapiens (human)

Compounds (44)

CompoundDescription
diphosphoric acid
hydronium ion
CobaltA trace element that is a component of vitamin B12. It has the atomic symbol Co, atomic number 27, and atomic weight 58.93. It is used in nuclear weapons, alloys, and pigments. Deficiency in animals leads to anemia; its excess in humans can lead to erythrocytosis.
NADH
Ammonium
betaineA naturally occurring compound that has been of interest for its role in osmoregulation. As a drug, betaine hydrochloride has been used as a source of hydrochloric acid in the treatment of hypochlorhydria. Betaine has also been used in the treatment of liver disorders, for hyperkalemia, for homocystinuria, and for gastrointestinal disturbances. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1341)
MercuryA silver metallic element that exists as a liquid at room temperature. It has the atomic symbol Hg (from hydrargyrum, liquid silver), atomic number 80, and atomic weight 200.59. Mercury is used in many industrial applications and its salts have been employed therapeutically as purgatives, antisyphilitics, disinfectants, and astringents. It can be absorbed through the skin and mucous membranes which leads to MERCURY POISONING. Because of its toxicity, the clinical use of mercury and mercurials is diminishing.
CopperA heavy metal trace element with the atomic symbol Cu, atomic number 29, and atomic weight 63.55.
ironA metallic element with atomic symbol Fe, atomic number 26, and atomic weight 55.85. It is an essential constituent of HEMOGLOBINS; CYTOCHROMES; and IRON-BINDING PROTEINS. It plays a role in cellular redox reactions and in the transport of OXYGEN.
ManganeseA trace element with atomic symbol Mn, atomic number 25, and atomic weight 54.94. It is concentrated in cell mitochondria, mostly in the pituitary gland, liver, pancreas, kidney, and bone, influences the synthesis of mucopolysaccharides, stimulates hepatic synthesis of cholesterol and fatty acids, and is a cofactor in many enzymes, including arginase and alkaline phosphatase in the liver. (From AMA Drug Evaluations Annual 1992, p2035)
Carbon DioxideA colorless, odorless gas that can be formed by the body and is necessary for the respiration cycle of plants and animals.
ZincA metallic element of atomic number 30 and atomic weight 65.38. It is a necessary trace element in the diet, forming an essential part of many enzymes, and playing an important role in protein synthesis and in cell division. Zinc deficiency is associated with ANEMIA, short stature, HYPOGONADISM, impaired WOUND HEALING, and geophagia. It is known by the symbol Zn.
Orthophosphate
adenosineA nucleoside that is composed of ADENINE and D-RIBOSE. Adenosine or adenosine derivatives play many important biological roles in addition to being components of DNA and RNA. Adenosine itself is a neurotransmitter.
adenosine diphosphateAdenosine 5'-(trihydrogen diphosphate). An adenine nucleotide containing two phosphate groups esterified to the sugar moiety at the 5'-position.
hydrogen carbonate
Hydrogen PeroxideA strong oxidizing agent used in aqueous solution as a ripening agent, bleach, and topical anti-infective. It is relatively unstable and solutions deteriorate over time unless stabilized by the addition of acetanilide or similar organic materials.
WaterA clear, odorless, tasteless liquid that is essential for most animal and plant life and is an excellent solvent for many substances. The chemical formula is hydrogen oxide (H2O). (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
OxygenAn element with atomic symbol O, atomic number 8, and atomic weight [15.99903; 15.99977]. It is the most abundant element on earth and essential for respiration.
succinyl-coenzyme A
cobamamide
Pyruvic AcidAn intermediate compound in the metabolism of carbohydrates, proteins, and fats. In thiamine deficiency, its oxidation is retarded and it accumulates in the tissues, especially in nervous structures. (From Stedman, 26th ed)
sulfitesInorganic salts of sulfurous acid.
1,10-phenanthrolineRN given refers to parent cpd; inhibits Zn-dependent metalloproteinases
nadA coenzyme composed of ribosylnicotinamide 5'-diphosphate coupled to adenosine 5'-phosphate by pyrophosphate linkage. It is found widely in nature and is involved in numerous enzymatic reactions in which it serves as an electron carrier by being alternately oxidized (NAD+) and reduced (NADH). (Dorland, 27th ed)
alpha-Ketoglutarate
CadmiumAn element with atomic symbol Cd, atomic number 48, and atomic weight 112.41. It is a metal and ingestion will lead to CADMIUM POISONING.
2-ketobutyrate
ethylmaleimideA sulfhydryl reagent that is widely used in experimental biochemical studies.
Edetic AcidA chelating agent that sequesters a variety of polyvalent cations such as CALCIUM. It is used in pharmaceutical manufacturing and as a food additive.
glutamate
adenosine triphosphateAn adenine nucleotide containing three phosphate groups esterified to the sugar moiety. In addition to its crucial roles in metabolism adenosine triphosphate is a neurotransmitter.
CysteineA thiol-containing non-essential amino acid that is oxidized to form CYSTINE.
Vitamin UA vitamin found in green vegetables. It is used in the treatment of peptic ulcers, colitis, and gastritis and has an effect on secretory, acid-forming, and enzymatic functions of the intestinal tract.
hydroxylamineA colorless inorganic compound (HONH2) used in organic synthesis and as a reducing agent, due to its ability to donate nitric oxide.
cysteine sulfinate
s-adenosylmethioninePhysiologic methyl radical donor involved in enzymatic transmethylation reactions and present in all living organisms. It possesses anti-inflammatory activity and has been used in treatment of chronic liver disease. (From Merck, 11th ed)
Coenzyme A
octanoyl-coenzyme A
Acetyl Coenzyme AAcetyl CoA participates in the biosynthesis of fatty acids and sterols, in the oxidation of fatty acids and in the metabolism of many amino acids. It also acts as a biological acetylating agent.
glutaryl-coenzyme A
Malonyl Coenzyme AA coenzyme A derivative which plays a key role in the fatty acid synthesis in the cytoplasmic and microsomal systems.
propionyl-coenzyme ARN given refers to parent cpd
2-iodosobenzoic acid