2.0 2012-05-31 13:53:57 -0600 2015-06-03 15:54:10 -0600 ECMDB01521 M2MDB000409 Tetradecanoyl-CoA Tetradecanoyl-CoA (or myristoyl-CoA) is an intermediate in fatty acid biosynthesis, fatty acid elongation and the beta oxidation of fatty acids. It is also used in the myristoylation of proteins. The first pass through the beta-oxidation process starts with the saturated fatty acid palmitoyl-CoA and produces myristoyl-CoA. A total of four enzymatic steps are required, starting with VLCAD CoA dehydrogenase (Very Long Chain) activity, followed by three enzymatic steps catalyzed by enoyl-CoA hydratase, 3-hydroxyacyl-CoA dehydrogenase, and ketoacyl-CoA thiolase. Myristoylation of proteins is also catalyzed by the presence of myristoyl-CoA along with Myristoyl-CoA:protein N-myristoyltransferase (NMT). Myristoylation is an irreversible, co-translational (during translation) protein modification found in animals, plants, fungi and viruses. In this protein modification a myristoyl group (derived from myristioyl CoA) is covalently attached via an amide bond to the alpha-amino group of an N-terminal amino acid of a nascent polypeptide. It is more common on glycine residues but also occurs on other amino acids. Myristoylation also occurs post-translationally, for example when previously internal glycine residues become exposed by caspase cleavage during apoptosis. Myristoyl-CoA Myristoyl-coenzyme A N-C14:0CoA N-C14:0Coenzyme A S-Tetradecanoyl-coenzyme A Tetradecanoyl CoA Tetradecanoyl Coenzyme A Tetradecanoyl-CoA Tetradecanoyl-CoA (N-C14:0CoA) Tetradecanoyl-coenzyme A C35H62N7O17P3S 977.89 977.313573819 {[(2R,3S,4R,5R)-5-(6-amino-9H-purin-9-yl)-4-hydroxy-2-({[hydroxy({[hydroxy({3-hydroxy-2,2-dimethyl-3-[(2-{[2-(tetradecanoylsulfanyl)ethyl]carbamoyl}ethyl)carbamoyl]propoxy})phosphoryl]oxy})phosphoryl]oxy}methyl)oxolan-3-yl]oxy}phosphonic acid [(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-4-hydroxy-2-[({hydroxy[hydroxy(3-hydroxy-2,2-dimethyl-3-[(2-{[2-(tetradecanoylsulfanyl)ethyl]carbamoyl}ethyl)carbamoyl]propoxy)phosphoryl]oxyphosphoryl}oxy)methyl]oxolan-3-yl]oxyphosphonic acid 3130-72-1 CCCCCCCCCCCCCC(=O)SCCNC(=O)CCNC(=O)C(O)C(C)(C)COP(O)(=O)OP(O)(=O)OC[C@H]1O[C@H]([C@H](O)[C@@H]1OP(O)(O)=O)N1C=NC2=C1N=CN=C2N InChI=1S/C35H62N7O17P3S/c1-4-5-6-7-8-9-10-11-12-13-14-15-26(44)63-19-18-37-25(43)16-17-38-33(47)30(46)35(2,3)21-56-62(53,54)59-61(51,52)55-20-24-29(58-60(48,49)50)28(45)34(57-24)42-23-41-27-31(36)39-22-40-32(27)42/h22-24,28-30,34,45-46H,4-21H2,1-3H3,(H,37,43)(H,38,47)(H,51,52)(H,53,54)(H2,36,39,40)(H2,48,49,50)/t24-,28-,29-,30?,34-/m1/s1 DUAFKXOFBZQTQE-XVDJLSDJSA-N Solid Cytosol logp 1.84 ALOGPS logs -2.65 ALOGPS solubility 2.21e+00 g/l ALOGPS logp -1.4 ChemAxon pka_strongest_acidic 0.83 ChemAxon pka_strongest_basic 4.95 ChemAxon iupac {[(2R,3S,4R,5R)-5-(6-amino-9H-purin-9-yl)-4-hydroxy-2-({[hydroxy({[hydroxy({3-hydroxy-2,2-dimethyl-3-[(2-{[2-(tetradecanoylsulfanyl)ethyl]carbamoyl}ethyl)carbamoyl]propoxy})phosphoryl]oxy})phosphoryl]oxy}methyl)oxolan-3-yl]oxy}phosphonic acid ChemAxon average_mass 977.89 ChemAxon mono_mass 977.313573819 ChemAxon smiles CCCCCCCCCCCCCC(=O)SCCNC(=O)CCNC(=O)C(O)C(C)(C)COP(O)(=O)OP(O)(=O)OC[C@H]1O[C@H]([C@H](O)[C@@H]1OP(O)(O)=O)N1C=NC2=C1N=CN=C2N ChemAxon formula C35H62N7O17P3S ChemAxon inchi InChI=1S/C35H62N7O17P3S/c1-4-5-6-7-8-9-10-11-12-13-14-15-26(44)63-19-18-37-25(43)16-17-38-33(47)30(46)35(2,3)21-56-62(53,54)59-61(51,52)55-20-24-29(58-60(48,49)50)28(45)34(57-24)42-23-41-27-31(36)39-22-40-32(27)42/h22-24,28-30,34,45-46H,4-21H2,1-3H3,(H,37,43)(H,38,47)(H,51,52)(H,53,54)(H2,36,39,40)(H2,48,49,50)/t24-,28-,29-,30?,34-/m1/s1 ChemAxon inchikey DUAFKXOFBZQTQE-XVDJLSDJSA-N ChemAxon polar_surface_area 363.63 ChemAxon refractivity 227.45 ChemAxon polarizability 96.43 ChemAxon rotatable_bond_count 32 ChemAxon acceptor_count 17 ChemAxon donor_count 9 ChemAxon physiological_charge -4 ChemAxon formal_charge 0 ChemAxon Fatty acid metabolism This pathway depicts the degradation of palmitic acid (C16:0). Fatty acid degradation and synthesis are relatively simple processes that are essentially the reverse of each other. The process of fatty acid degradation, also known as Beta-Oxidation, converts an aliphatic compound into a set of activated acetyl units (acetyl CoA) that can be processed by the citric acid cycle. An activated fatty acid is first oxidized to introduce a double bond; the double bond is then hydrated to introduce an oxygen; the alcohol is then oxidized to a ketone; and, finally, the four carbon fragment is cleaved by coenzyme A to yield acetyl CoA and a fatty acid chain two carbons shorter. If the fatty acid has an even number of carbon atoms and is saturated, the process is simply repeated until the fatty acid is completely converted into acetyl CoA units. Fatty acid synthesis is essentially the reverse of this process. Because the result is a polymer, the process starts with monomers—in this case with activated acyl group and malonyl units. The malonyl unit is condensed with the acetyl unit to form a four-carbon fragment. To produce the required hydrocarbon chain, the carbonyl must be reduced. The fragment is reduced, dehydrated, and reduced again, exactly the opposite of degradation, to bring the carbonyl group to the level of a methylene group with the formation of butyryl CoA. Another activated malonyl group condenses with the butyryl unit and the process is repeated until a C16 fatty acid is synthesized. The first step converts the hydroxydecanoyl into a trans 2decenoyl acp through a protein complex conformed of a hydroxomyristoyl dehydratase and a hydroxydecanoyl dehydratase. The second step leads to the production of a cis 3 decenoyl acp through a 3-hydroxydecanoyl acp dehydratase. For the third step the cis 3 decenoyl acp enters a cycle involving a synthase, reductase, dehydratase and an enoyl reductase which in turn produce a cis x enoyl-acp, hydroxy cis x enoyl, trans x-2 cis x enoyl acp and cis x enoyl respectively.This is done until a palmitoleoyl is produce. In said case the pathway procedes in two different directions. It can either produce a palmitoleic acid through a acyl-coa thioesterase, or produce a Vaccenic acid through a different set of reactions. This process is achieved through a 3-oxoacyl acp synthase, a 3-oxoacyl acp reductase, a 3r hydroxymyristoyl dehydratase and an enoyl acp reductase that produces a transition through 3-oxo cis vaccenoyl acp, 3 hydroxy cis vaccenoyl acp, cis vaccen 2 enoyl acp and a cis vaccenoyl acp respectively. At this point it goes through one final reaction to produce a Vaccenic acid, through an acyl-CoA thioesterase PW000796 ec00071 Metabolic fatty acid oxidation (laurate) Although enzymes of the pathway handle both short and long chain fatty acids, it is the long chain compounds that induce the enzymes of the pathway . Each turn of the cycle removes two carbon atoms until only two or three remain. When even-numbered fatty acids are broken down, a two-carbon compound remains, acetyl-CoA. When odd number fatty acids are broken down, a three-carbon residue results, propionylCoA. Unsaturated fatty acids, with cis double bonds located at odd-numbered carbon atoms, enter the main pathway of saturated fatty acid degradation by converting related metabolites of cis configuration and D stereoisomers, derived from breakdown of unsaturated fatty acids, to the trans- or L isomers of saturated fatty acid breakdown by an isomerase and an epimerase, respectively. When cis double bonds are located at even-numbered carbon atoms, such as linoleic acid (cis,cis(9,12)-octadecadienoic acid), after the fatty acid is degraded to the ten carbon stage an extra step is required to deal with the resulting compound, trans,δ(2)-cis,δ(4)decadienoyl-CoA. The enzyme 2,4-dienoyl-CoA reductase, converts this to trans,δ(2)decenoyl-CoA which enters the normal cycle at the point of the isomerase. The order of the reaction is as follows: a 2,3,4 saturated fatty acid is transformed into a 2,3,4 saturated fatty acyl CoA through a Long and short chain fatty acid CoA ligase. The 2,3,4 saturated fatty acyl CoA is then transformed into a trans 2 enoyl CoA. This enoyl can also be produced from a cis 3 enoyl CoA through a fatty acid oxidation protein complex. The trans 2 enoyl is transformed into a 3s 3 hydroxyacyl CoA through a 2,3 dehydroadipyl CoA hydratase. This same enzyme turns the product into a 3-oxoacyl-CoA. This is followed by the last step in the reaction when the oxoacyl-coa is turn into an acetyl coa+ a 2,3,4 saturated fatty acyl CoA through a 3-ketoacyl-CoA thiolase PW001020 Metabolic fatty acid oxidation (myristate) Although enzymes of the pathway handle both short and long chain fatty acids, it is the long chain compounds that induce the enzymes of the pathway . Each turn of the cycle removes two carbon atoms until only two or three remain. When even-numbered fatty acids are broken down, a two-carbon compound remains, acetyl-CoA. When odd number fatty acids are broken down, a three-carbon residue results, propionylCoA. Unsaturated fatty acids, with cis double bonds located at odd-numbered carbon atoms, enter the main pathway of saturated fatty acid degradation by converting related metabolites of cis configuration and D stereoisomers, derived from breakdown of unsaturated fatty acids, to the trans- or L isomers of saturated fatty acid breakdown by an isomerase and an epimerase, respectively. When cis double bonds are located at even-numbered carbon atoms, such as linoleic acid (cis,cis(9,12)-octadecadienoic acid), after the fatty acid is degraded to the ten carbon stage an extra step is required to deal with the resulting compound, trans,δ(2)-cis,δ(4)decadienoyl-CoA. The enzyme 2,4-dienoyl-CoA reductase, converts this to trans,δ(2)decenoyl-CoA which enters the normal cycle at the point of the isomerase. The order of the reaction is as follows: a 2,3,4 saturated fatty acid is transformed into a 2,3,4 saturated fatty acyl CoA through a Long and short chain fatty acid CoA ligase. The 2,3,4 saturated fatty acyl CoA is then transformed into a trans 2 enoyl CoA. This enoyl can also be produced from a cis 3 enoyl CoA through a fatty acid oxidation protein complex. The trans 2 enoyl is transformed into a 3s 3 hydroxyacyl CoA through a 2,3 dehydroadipyl CoA hydratase. This same enzyme turns the product into a 3-oxoacyl-CoA. This is followed by the last step in the reaction when the oxoacyl-coa is turn into an acetyl coa+ a 2,3,4 saturated fatty acyl CoA through a 3-ketoacyl-CoA thiolase PW001021 Metabolic Specdb::EiMs 4935 Specdb::NmrOneD 148000 Specdb::NmrOneD 148001 Specdb::NmrOneD 148002 Specdb::NmrOneD 148003 Specdb::NmrOneD 148004 Specdb::NmrOneD 148005 Specdb::NmrOneD 148006 Specdb::NmrOneD 148007 Specdb::NmrOneD 148008 Specdb::NmrOneD 148009 Specdb::NmrOneD 148010 Specdb::NmrOneD 148011 Specdb::NmrOneD 148012 Specdb::NmrOneD 148013 Specdb::NmrOneD 148014 Specdb::NmrOneD 148015 Specdb::NmrOneD 148016 Specdb::NmrOneD 148017 Specdb::NmrOneD 148018 Specdb::NmrOneD 148019 Specdb::MsMs 25697 Specdb::MsMs 25698 Specdb::MsMs 25699 Specdb::MsMs 32255 Specdb::MsMs 32256 Specdb::MsMs 32257 Specdb::MsMs 2790105 Specdb::MsMs 2790106 Specdb::MsMs 2790107 Specdb::MsMs 2914985 Specdb::MsMs 2914986 Specdb::MsMs 2914987 HMDB01521 1126 58623 C02593 15532 TETRADECANOYL-COA Keseler, I. M., Collado-Vides, J., Santos-Zavaleta, A., Peralta-Gil, M., Gama-Castro, S., Muniz-Rascado, L., Bonavides-Martinez, C., Paley, S., Krummenacker, M., Altman, T., Kaipa, P., Spaulding, A., Pacheco, J., Latendresse, M., Fulcher, C., Sarker, M., Shearer, A. G., Mackie, A., Paulsen, I., Gunsalus, R. P., Karp, P. D. (2011). "EcoCyc: a comprehensive database of Escherichia coli biology." Nucleic Acids Res 39:D583-D590. 21097882 Kanehisa, M., Goto, S., Sato, Y., Furumichi, M., Tanabe, M. (2012). "KEGG for integration and interpretation of large-scale molecular data sets." Nucleic Acids Res 40:D109-D114. 22080510 Hunt MC, Ruiter J, Mooyer P, van Roermond CW, Ofman R, Ijlst L, Wanders RJ: Identification of fatty acid oxidation disorder patients with lowered acyl-CoA thioesterase activity in human skin fibroblasts. Eur J Clin Invest. 2005 Jan;35(1):38-46. 15638818 3-ketoacyl-CoA thiolase P21151 FADA_ECOLI fadA http://ecmdb.ca/proteins/P21151.xml Long-chain-fatty-acid--CoA ligase P69451 LCFA_ECOLI fadD http://ecmdb.ca/proteins/P69451.xml 3-ketoacyl-CoA thiolase_ P76503 FADI_ECOLI fadI http://ecmdb.ca/proteins/P76503.xml Acyl-coenzyme A dehydrogenase Q47146 FADE_ECOLI fadE http://ecmdb.ca/proteins/Q47146.xml Short-chain-fatty-acid--CoA ligase P38135 FADK_ECOLI fadK http://ecmdb.ca/proteins/P38135.xml Acyl-CoA thioesterase 2 P0AGG2 TESB_ECOLI tesB http://ecmdb.ca/proteins/P0AGG2.xml Adenosine triphosphate + Coenzyme A + Hydrogen ion + tetradecanoate (n-C14:0) > Adenosine monophosphate + Hydrogen ion + Pyrophosphate + Tetradecanoyl-CoA Acetyl-CoA + Tetradecanoyl-CoA <> 3-Oxohexadecanoyl-CoA + Coenzyme A R03991 FAD + Tetradecanoyl-CoA <> FADH2 + (2E)-Tetradecenoyl-CoA R03990 Water + Tetradecanoyl-CoA > Coenzyme A + Hydrogen ion + tetradecanoate (n-C14:0) 3-Oxododecanoyl-CoA + Coenzyme A > Acetyl-CoA + Tetradecanoyl-CoA PW_R003785 Tetradecanoyl-CoA + electron-transfer flavoprotein > (2E)-Tetradecenoyl-CoA + Reduced electron-transfer flavoprotein PW_R002486 Tetradecanoyl-CoA + Acetyl-CoA <> 3-Oxohexadecanoyl-CoA + Coenzyme A PW_R002732 Myristic acid + Coenzyme A + Adenosine triphosphate > Adenosine monophosphate + Tetradecanoyl-CoA PW_R003762