Page last updated: 2024-10-06

Citric acid cycle (TCA cycle)

Proteins (18)

ProteinSynonymsTaxonomy
Succinate dehydrogenase [ubiquinone] iron-sulfur subunit, mitochondrialEC 1.3.5.1; Iron-sulfur subunit of complex II; IpHomo sapiens (human)
Isocitrate dehydrogenase [NADP], mitochondrialIDH; EC 1.1.1.42; ICD-M; IDP; NADP(+)-specific ICDH; Oxalosuccinate decarboxylaseHomo sapiens (human)
Acylpyruvase FAHD1, mitochondrialEC 3.7.1.5; Fumarylacetoacetate hydrolase domain-containing protein 1; FAH domain-containing protein 1; Oxaloacetate decarboxylase; OAA decarboxylase; 4.1.1.112; YisK-like proteinHomo sapiens (human)
Succinate--CoA ligase [ADP-forming] subunit beta, mitochondrialEC 6.2.1.5; ATP-specific succinyl-CoA synthetase subunit beta; A-SCS; Succinyl-CoA synthetase beta-A chain; SCS-betaAHomo sapiens (human)
Citrate synthase, mitochondrialEC 2.3.3.1; Citrate (Si)-synthaseHomo sapiens (human)
Isocitrate dehydrogenase [NAD] subunit alpha, mitochondrialEC 1.1.1.41; Isocitric dehydrogenase subunit alpha; NAD(+)-specific ICDH subunit alphaHomo sapiens (human)
Succinate dehydrogenase [ubiquinone] flavoprotein subunit, mitochondrialEC 1.3.5.1; Flavoprotein subunit of complex II; FpHomo sapiens (human)
Malate dehydrogenase, mitochondrialEC 1.1.1.37Homo sapiens (human)
Aconitate hydratase, mitochondrialAconitase; EC 4.2.1.3; Citrate hydro-lyaseHomo sapiens (human)
Succinate dehydrogenase cytochrome b560 subunit, mitochondrialIntegral membrane protein CII-3; QPs-1; QPs1; Succinate dehydrogenase complex subunit C; Succinate-ubiquinone oxidoreductase cytochrome B large subunit; CYBLHomo sapiens (human)
Succinate--CoA ligase [ADP/GDP-forming] subunit alpha, mitochondrialEC 6.2.1.4; EC 6.2.1.5; Succinyl-CoA synthetase subunit alpha; SCS-alphaHomo sapiens (human)
Dihydrolipoyllysine-residue succinyltransferase component of 2-oxoglutarate dehydrogenase complex, mitochondrialEC 2.3.1.61; 2-oxoglutarate dehydrogenase complex component E2; OGDC-E2; Dihydrolipoamide succinyltransferase component of 2-oxoglutarate dehydrogenase complex; E2KHomo sapiens (human)
Succinate--CoA ligase [GDP-forming] subunit beta, mitochondrialEC 6.2.1.4; GTP-specific succinyl-CoA synthetase subunit beta; G-SCS; GTPSCS; Succinyl-CoA synthetase beta-G chain; SCS-betaGHomo sapiens (human)
Succinate dehydrogenase [ubiquinone] cytochrome b small subunit, mitochondrialCybS; CII-4; QPs3; Succinate dehydrogenase complex subunit D; Succinate-ubiquinone oxidoreductase cytochrome b small subunit; Succinate-ubiquinone reductase membrane anchor subunitHomo sapiens (human)
Isocitrate dehydrogenase [NAD] subunit beta, mitochondrialIsocitric dehydrogenase subunit beta; NAD(+)-specific ICDH subunit betaHomo sapiens (human)
Fumarate hydratase, mitochondrialFumarase; HsFH; EC 4.2.1.2Homo sapiens (human)
Isocitrate dehydrogenase [NAD] subunit gamma, mitochondrialIsocitric dehydrogenase subunit gamma; NAD(+)-specific ICDH subunit gammaHomo sapiens (human)
NAD(P) transhydrogenase, mitochondrialEC 7.1.1.1; Nicotinamide nucleotide transhydrogenase; Pyridine nucleotide transhydrogenaseHomo sapiens (human)

Compounds (24)

CompoundDescription
hydronium ion
Succinate
NADH
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.
citric acid, anhydrous
Orthophosphate
fumaric acidsee also record for ferrous fumarate; use FUMARATES for general fumaric acid esters
adenosine diphosphateAdenosine 5'-(trihydrogen diphosphate). An adenine nucleotide containing two phosphate groups esterified to the sugar moiety at the 5'-position.
MagnesiumA metallic element that has the atomic symbol Mg, atomic number 12, and atomic weight 24.31. It is important for the activity of many enzymes, especially those involved in OXIDATIVE PHOSPHORYLATION.
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)
Guanosine MonophosphateA guanine nucleotide containing one phosphate group esterified to the sugar moiety and found widely in nature.
succinyl-coenzyme A
Guanosine DiphosphateA guanine nucleotide containing two phosphate groups esterified to the sugar moiety.
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)
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
OxaloacetateAn anionic form of oxaloacetic acid.
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.
lipoamideRN given refers to cpd without isomeric designation
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.
Flavin-Adenine DinucleotideA condensation product of riboflavin and adenosine diphosphate. The coenzyme of various aerobic dehydrogenases, e.g., D-amino acid oxidase and L-amino acid oxidase. (Lehninger, Principles of Biochemistry, 1982, p972)
creolinfrom refined coal tar oils