Page last updated: 2024-10-24
coenzyme A metabolic process
Definition
Target type: biologicalprocess
The chemical reactions and pathways involving coenzyme A, 3'-phosphoadenosine-(5')diphospho(4')pantatheine, an acyl carrier in many acylation and acyl-transfer reactions in which the intermediate is a thiol ester. [ISBN:0198547684]
Coenzyme A (CoA) metabolic process is a fundamental pathway in cellular metabolism, playing a pivotal role in various biochemical reactions, particularly in energy production and biosynthesis. CoA, a complex organic molecule composed of pantothenic acid (vitamin B5), adenine, ribose, and phosphate, acts as a carrier of acyl groups (groups derived from carboxylic acids), facilitating their transfer between different molecules.
The process begins with the synthesis of CoA from pantothenate, a precursor derived from dietary sources. This synthesis occurs in multiple steps involving various enzymes, including pantothenate kinase, phosphopantothenoylcysteine synthetase, and phosphopantetheine adenylyltransferase. Once synthesized, CoA undergoes a series of metabolic reactions, primarily focused on the transfer and activation of acyl groups.
One key function of CoA is its involvement in the breakdown of carbohydrates (glucose) through glycolysis and the tricarboxylic acid (TCA) cycle. During glycolysis, pyruvate, the end product of glucose breakdown, is converted to acetyl-CoA, a key intermediate in cellular respiration. Acetyl-CoA then enters the TCA cycle, where it undergoes a series of reactions that generate ATP, the primary energy currency of the cell.
CoA also plays a crucial role in lipid metabolism, particularly in the β-oxidation pathway, which breaks down fatty acids into acetyl-CoA. This acetyl-CoA can then be used for energy production or converted into other essential molecules. Additionally, CoA is involved in the biosynthesis of various biomolecules, including fatty acids, steroids, and amino acids.
In summary, the CoA metabolic process encompasses the synthesis, utilization, and regeneration of coenzyme A, a vital molecule essential for a wide range of cellular processes, including energy production, lipid metabolism, and biosynthesis. Its central role in cellular metabolism makes it a crucial target for research and development of novel therapeutic strategies.'
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Proteins (2)
| Protein | Definition | Taxonomy |
|---|---|---|
| ATP-citrate synthase | An ATP-citrate synthase that is encoded in the genome of human. [PRO:DNx, UniProtKB:P53396] | Homo sapiens (human) |
| 3-hydroxy-3-methylglutaryl-coenzyme A reductase | A 3-hydroxy-3-methylglutaryl-coenzyme A reductase that is encoded in the genome of human. [PRO:DNx, UniProtKB:P04035] | Homo sapiens (human) |
Compounds (22)
| Compound | Definition | Classes | Roles |
|---|---|---|---|
| meglutol | 3-hydroxy-3-methylglutaric acid : A dicarboxylic acid that is glutaric acid in which one of the two hydrogens at position 3 is substituted by a hydroxy group, while the other is substituted by a methyl group. It has been found to accumulate in urine of patients suffering from HMG-CoA lyase (3-hydroxy-3-methylglutaryl-CoA lyase, EC 4.1.3.4) deficiency. It occurs as a plant metabolite in Crotalaria dura. Meglutol: An antilipemic agent which lowers cholesterol, triglycerides, serum beta-lipoproteins and phospholipids. It acts by interfering with the enzymatic steps involved in the conversion of acetate to hydroxymethylglutaryl coenzyme A as well as inhibiting the activity of HYDROXYMETHYLGLUTARYL COA REDUCTASES which is the rate limiting enzyme in the biosynthesis of cholesterol. | 3-hydroxy carboxylic acid; dicarboxylic acid; tertiary alcohol | anticholesteremic drug; antimetabolite; EC 1.1.1.34/EC 1.1.1.88 (hydroxymethylglutaryl-CoA reductase) inhibitor; human metabolite; plant metabolite |
| cisapride | cisapride : The amide resulting from formal condensation of 4-amino-5-chloro-2-methoxybenzoic acid with cis-1-[3-(4-fluorophenoxy)propyl]-3-methoxypiperidin-4-amine. It has been used (as its monohydrate or as its tartrate) for the treatment of gastro-oesophageal reflux disease and for non-ulcer dyspepsia, but its propensity to cause cardiac arrhythmias resulted in its complete withdrawal from many countries, including the U.K., and restrictions on its use elsewhere. Cisapride: A substituted benzamide used for its prokinetic properties. It is used in the management of gastroesophageal reflux disease, functional dyspepsia, and other disorders associated with impaired gastrointestinal motility. (Martindale The Extra Pharmacopoeia, 31st ed) | benzamides | |
| vorinostat | vorinostat : A dicarboxylic acid diamide comprising suberic (octanedioic) acid coupled to aniline and hydroxylamine. A histone deacetylase inhibitor, it is marketed under the name Zolinza for the treatment of cutaneous T cell lymphoma (CTCL). Vorinostat: A hydroxamic acid and anilide derivative that acts as a HISTONE DEACETYLASE inhibitor. It is used in the treatment of CUTANEOUS T-CELL LYMPHOMA and SEZARY SYNDROME. | dicarboxylic acid diamide; hydroxamic acid | antineoplastic agent; apoptosis inducer; EC 3.5.1.98 (histone deacetylase) inhibitor |
| lovastatin | lovastatin : A fatty acid ester that is mevastatin carrying an additional methyl group on the carbobicyclic skeleton. It is used in as an anticholesteremic drug and has been found in fungal species such as Aspergillus terreus and Pleurotus ostreatus (oyster mushroom). Lovastatin: A fungal metabolite isolated from cultures of Aspergillus terreus. The compound is a potent anticholesteremic agent. It inhibits 3-hydroxy-3-methylglutaryl coenzyme A reductase (HYDROXYMETHYLGLUTARYL COA REDUCTASES), which is the rate-limiting enzyme in cholesterol biosynthesis. It also stimulates the production of low-density lipoprotein receptors in the liver. | delta-lactone; fatty acid ester; hexahydronaphthalenes; polyketide; statin (naturally occurring) | anticholesteremic drug; antineoplastic agent; Aspergillus metabolite; prodrug |
| simvastatin | simvastatin : A member of the class of hexahydronaphthalenes that is lovastatin in which the 2-methylbutyrate ester moiety has been replaced by a 2,2-dimethylbutyrate ester group. It is used as a cholesterol-lowering and anti-cardiovascular disease drug. Simvastatin: A derivative of LOVASTATIN and potent competitive inhibitor of 3-hydroxy-3-methylglutaryl coenzyme A reductase (HYDROXYMETHYLGLUTARYL COA REDUCTASES), which is the rate-limiting enzyme in cholesterol biosynthesis. It may also interfere with steroid hormone production. Due to the induction of hepatic LDL RECEPTORS, it increases breakdown of LDL CHOLESTEROL. | delta-lactone; fatty acid ester; hexahydronaphthalenes; statin (semi-synthetic) | EC 1.1.1.34/EC 1.1.1.88 (hydroxymethylglutaryl-CoA reductase) inhibitor; EC 3.4.24.83 (anthrax lethal factor endopeptidase) inhibitor; ferroptosis inducer; geroprotector; prodrug |
| pravastatin | pravastatin : A carboxylic ester resulting from the formal condensation of (S)-2-methylbutyric acid with the hydroxy group adjacent to the ring junction of (3R,5R)-7-[(1S,2S,6S,8S,8aR)-6,8-dihydroxy-2-methyl-1,2,6,7,8,8a-hexahydronaphthalen-1-yl]-3,5-dihydroxyheptanoic acid. Derived from microbial transformation of mevastatin, pravastatin is a reversible inhibitor of 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA). The sodium salt is used for lowering cholesterol and preventing cardiovascular disease. It is one of the lower potency statins, but has the advantage of fewer side effects compared with lovastatin and simvastatin. Pravastatin: An antilipemic fungal metabolite isolated from cultures of Nocardia autotrophica. It acts as a competitive inhibitor of HMG CoA reductase (HYDROXYMETHYLGLUTARYL COA REDUCTASES). | 3-hydroxy carboxylic acid; carbobicyclic compound; carboxylic ester; hydroxy monocarboxylic acid; secondary alcohol; statin (semi-synthetic) | anticholesteremic drug; environmental contaminant; metabolite; xenobiotic |
| atorvastatin | aromatic amide; dihydroxy monocarboxylic acid; monofluorobenzenes; pyrroles; statin (synthetic) | environmental contaminant; xenobiotic | |
| mevastatin | mevastatin : A carboxylic ester that is pravastatin that is lacking the allylic hydroxy group. A hydroxymethylglutaryl-CoA reductase inhibitor (statin) isolated from Penicillium citrinum and from Penicillium brevicompactum, its clinical use as a lipid-regulating drug ceased following reports of toxicity in animals. mevastatin: antifungal metabolite from Penicillium brevicopactum; potent inhibitory activity to sterol synthesis; structure | 2-pyranones; carboxylic ester; hexahydronaphthalenes; polyketide; statin (naturally occurring) | antifungal agent; apoptosis inducer; EC 3.4.24.83 (anthrax lethal factor endopeptidase) inhibitor; fungal metabolite; Penicillium metabolite |
| 25-hydroxycholesterol | 25-hydroxy steroid; oxysterol | human metabolite | |
| sk&f 99085 | |||
| hydroxycitric acid | carbonyl compound | ||
| cerivastatin | cerivastatin : (3R,5S)-3,5-dihydroxyhept-6-enoic acid in which the (7E)-hydrogen is substituted by a 4-(4-fluorophenyl)-2,6-diisopropyl-5-(methoxymethyl)pyridin-3-yl group. Formerly used (as its sodium salt) to lower cholesterol and prevent cardiovascular disease, it was withdrawn from the market worldwide in 2001 following reports of a severe form of muscle toxicity. cerivastatin: cerivastatin is the ((E)-(+))-isomer; structure given in first source | dihydroxy monocarboxylic acid; pyridines; statin (synthetic) | |
| rosuvastatin | rosuvastatin : A dihydroxy monocarboxylic acid that is (6E)-7-{4-(4-fluorophenyl)-2-[methyl(methylsulfonyl)amino]-6-(propan-2-yl)pyrimidin-5-yl} hept-6-enoic acid carrying two hydroxy substituents at positions 3 and 5 (the 3R,5S-diastereomer). | dihydroxy monocarboxylic acid; monofluorobenzenes; pyrimidines; statin (synthetic); sulfonamide | anti-inflammatory agent; antilipemic drug; cardioprotective agent; CETP inhibitor; environmental contaminant; xenobiotic |
| sr 12813 | SR 12813: structure given in first source SR12813 : An organic phosphonate that is the tetraethyl ester of [2-(3,5-di-tert-butyl-4-hydroxyphenyl)ethene-1,1-diyl]bis(phosphonic acid). | organic phosphonate; phenols | pregnane X receptor agonist |
| alpha-asarone | alpha-asarone : The trans-isomer of asarone. asarone : A phenylpropanoid that is benzene substituted by methoxy groups at positions 1, 2 and 4 and a propen-1-yl group at position 5. It has been isolated from Acorus. asarone: structure in Merck Index, 9th ed, #847 | asarone | anticonvulsant; GABA modulator |
| hr 780 | HR 780: structure given in first source | phenylpyridine | |
| nk 104 | pitavastatin calcium : The calcium salt of pitavastatin. Used for treatment of hypercholesterolemia (elevated levels of cholesterol in the blood) on patients unable to sufficiently lower their cholesterol levels by diet and exercise. | calcium salt; statin (synthetic) | antioxidant |
| (6E)-7-[3-(4-fluorophenyl)-1-(propan-2-yl)-1H-indol-2-yl]-3,5-dihydroxyhept-6-enoic acid | (6E)-7-[3-(4-fluorophenyl)-1-(propan-2-yl)-1H-indol-2-yl]-3,5-dihydroxyhept-6-enoic acid : A dihydroxy monocarboxylic acid that is N-isopropylindole which is substituted at position 3 by a p-fluorophenyl group and at position 2 by a 6-carboxy-3,5-dihydroxyhex-1-en-1-yl group. It has four possible diastereoisomers. | dihydroxy monocarboxylic acid; indoles; organofluorine compound | |
| tannins | gallotannin : A class of hydrolysable tannins obtained by condensation of the carboxy group of gallic acid (and its polymeric derivatives) with the hydroxy groups of a monosaccharide (most commonly glucose). | tannin | |
| 3,5-dichloro-2-hydroxy-N-(2-methoxy-5-phenylphenyl)benzenesulfonamide | biphenyls | ||
| pravastatin sodium | pravastatin sodium : An organic sodium salt that is the sodium salt of pravastatin. A reversible inhibitor of 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA), it is used for lowering cholesterol and preventing cardiovascular disease. It is one of the lower potency statins, but has the advantage of fewer side effects compared with lovastatin and simvastatin. | organic sodium salt; statin (semi-synthetic) | anticholesteremic drug |
| 7-oxo-ganoderic acid z | 7-oxo-ganoderic acid Z: from the mushroom Ganoderma lucidum; structure in first source |