Unreferenced date February 2007 Fattyaciddegradation is the process in which fatty acids are broken down into their metabolites, in the end generating acetyl CoA , the entry molecule for the citric acid cycle , the main energy supply of animals. It includes three major steps Lipolysis of and release from adipose tissue Activation and transport into mitochondria oxidation Lipolysis and release Initially in the process of degradation, fatty acids are stored in fat cells adipocytes . The breakdown of this fat is known as lipolysis . The products of lipolysis, free fattyacid s, are released into the bloodstream and circulate throughout the body. Activation and transport into mitochondria Fatty acids must be activated before they can be carried into the mitochondria , where fattyacid oxidation occurs. This process occurs in two steps catalyzed by the enzyme fatty acyl CoA synthetase . Formation of an activated thioester bond The enzyme first catalyst catalyzes nucleophilic attack on the Adenosine triphosphate Physical and chemical properties phosphate of adenosine triphosphate ATP to form pyrophosphate and an acyl chain linked to adenosine monophosphate AMP . The next step is formation of an activated thioester bond between the fatty acyl chain and Coenzyme A . File FattyAcid Activation.png center The formula for the above is RCOO sup sup CoA ATP H sub 2 sub O RCO CoA AMP PP ... acid cycle . Metabolism DEFAULTSORT FattyAcidDegradation Category Metabolism Category Fatty ... in fattyacid biosynthesis, in order to prevent futile cycling between beta oxidation and fattyacid synthesis . oxidation Main Beta oxidation Once inside the mitochondria, the oxidation of fatty acids occurs via four recurring steps Oxidation by FAD , Hydration reaction Hydration , Oxidation ... membrane is impermeable to fatty acids and a specialized carnitine carrier system operates to transport activated fatty acids from cytosol to mitochondria. Once activated, the acyl CoA is transported ... more details
Distinguish fat File Butyric acid acsv.svg thumb Butyric acid , a short chain fattyacid Fats In chemistry , especially biochemistry , a fattyacid is a carboxylic acid with a long aliphatic tail chain ... as saturated. They differ in length as well. Length of free fattyacid chains Fattyacid chains differ by length, often categorized as short, medium, or long. Short chain fattyacid s SCFA are fatty acids with aliphatic tails of fewer than six carbons i.e. butyric acid . Medium chain fattyacid ... , which can form medium chain triglycerides . Long chain fattyacid LCFA are fatty acids with aliphatic ... of healthy volunteers ref Very long chain fattyacid VLCFA are fatty acids with aliphatic tails ... Comparison of the trans isomer top Elaidic acid and the cis isomer oleic acid . Unsaturated fatty acids ... the chain to bend and restricts the conformational freedom of the fattyacid. The more double bonds ... of Unsaturated Fatty Acids Common name Chemical structure sup x sup C D n x Myristoleic acid ... sup 9 sup 18 1 omega 9 fattyacid n 9 Elaidic acid CH sub 3 sub CH sub 2 sub sub 7 sub CH CH CH sub 2 sub sub 7 sub COOH trans sup 9 sup 18 1 omega 9 fattyacid n 9 Vaccenic acid CH sub 3 sub CH ... 9 sup , sup 12 sup 18 2 omega 6 fattyacid n 6 Linoelaidic acid CH sub 3 sub CH sub 2 sub sub 4 sub ... omega 6 fattyacid n 6 Alpha linolenic acid Linolenic acid CH sub 3 sub CH sub 2 sub CH CH CH sub ... , sup 15 sup 18 3 omega 3 fattyacid n 3 Arachidonic acid CH sub 3 sub CH sub 2 sub sub 4 sub CH ... sup 8 sup , sup 11 sup , sup 14 sup 20 4 omega 6 fattyacid n 6 Eicosapentaenoic acid CH sub 3 ... 14 sup , sup 17 sup 20 5 omega 3 fattyacid n 3 Erucic acid CH sub 3 sub CH sub 2 sub sub 7 sub CH CH CH sub 2 sub sub 11 sub COOH cis sup 13 sup 22 1 omega 9 fattyacid n 9 Docosahexaenoic acid ... , sup 7 sup , sup 10 sup , sup 13 sup , sup 16 sup , sup 19 sup 22 6 omega 3 fattyacid n 3 Essential fatty acids Main Essential fattyacidFatty acids that are required by the human body but cannot ... more details
when blood sugar is low. Transport and oxidation Main Fattyaciddegradation The neutral ... and Albert Lehninger in 1948 . Free fattyacid chains of more than 12 carbons require the help of membrane transporters to cross into the membrane into the mitochondria, where they undergo Fattyaciddegradation. Fattyaciddegradation is the process in which fatty acids are broken down, resulting in release ...Expert subject Biochemistry date April 2008 Fattyacid s are an important source of energy and adenosine ... splits long carbon chains of the fattyacid into acetyl CoA , which can eventually enter the Citric acid cycle TCA cycle . Briefly, oxidation or lipolysis of free fatty acids is as follows Dehydrogenation ... NADH Cleavage by thiolase, yielding 1 acetyl CoA and a fattyacid that has now been shortened by 2 ... per mol of fattyacid. Fatty acids as an energy source Fatty acids, stored as triglycerides in an organism .... The liver acts as a major organ for fattyacid treatment, processing chylomicron remnants and liposomes ... lipase to break triglyceride s into glycerol and free fattyacid s for use in metabolism , a process ... by serum albumin and cross into the cytosol . The enzymes used in fattyacid oxidation ... acyl carnitine such as palmitoylcarnitine reacts with coenzyme A to release the fattyacid and produce acetyl CoA . CPT I is believed to be the rate limiting step in fattyacid oxidation. Once inside ... acetyl CoA are repeatedly cleaved from the fattyacid. Acetyl CoA can then enter the citric acid ... carbons are first broken down to a manageable size in peroxisome s. Synthesis See Fattyacid See Fatty ... involving fat synthesis, see lipogenesis . Disorders Disorders of fattyacid metabolism can be described ... fattyacid s in order to produce energy within muscles, liver, and other cell biology cell types. See also Fattyacid synthase Essential fattyacid References references Berg, J.M., et al., Biochemistry ... pedros bq fatty.htm The chemical logic behind the metabolism of fattyacid Lipid metabolism MetabolismMap ... more details
File Oleamide.png thumb right Chemical structure of oleamide , an FAA derived from the fattyacid oleic acidFattyacid amides FAAs are amide s formed from a fattyacid and an amine . In biochemistry, FFAs which have ethanolamine as the amine component are known as N Acylethanolamine N acylethanolamines and they play an important role in chemical signalling. See also Commonscat Fattyacid amides Fattyacid ester organic chemistry stub Category Amides ... more details
Unreferenced date January 2007 Conjugated fatty acids are polyunsaturated fattyacid s in which at least one pair of double bond s are separated by only one single bond , as in conjugated linoleic acid File Rumenic acid.svg 200px The Conjugated system conjugation results in delocalization of electrons along the system. See also Polyunsaturated fattyacid s Conjugated linoleic acid DEFAULTSORT Conjugated FattyAcid Category Fatty acids Biochem stub ... more details
File Acetic acid 2D skeletal.svg thumb upright 0.7 Acetic acid File Caproic acid acsv.svg thumb upright 0.7 Caproic acid Short chain fatty acids are a sub group of fatty acids with aliphatic tails of less than six ref http emedicine.medscape.com article 946755 overview http emedicine.medscape.com article 946755 overview ref carbons. They include Acetic acid Propionic acid Isobutyric acid 2 methylpropanoic acid Butyric acid Isovaleric acid 3 methylbutanoic acid Valeric acid pentanoic acid Caproic acid hexanoic acid Short chain fatty acids, just as Fattyacid medium chain fatty acids , are taken up directly to the portal vein during lipid digestion , in contrast to long chain fattyacid s, which are packed into chylomicrons and enter Lymph capillary lymphatic capillaries and enter the blood first at the subclavian vein . Short chain fatty acids are produced when dietary fiber is fermented in the Colon anatomy colon . References reflist External links http web.archive.org web 20070928224624 http www.danone institute.be communication pdf mono03 mono3 part4.pdf A review of the biological properties of SCFA from the Danone Institute via archive.org Category Fatty acids Fatty acids es cidos grasos de cadena corta fr Acide gras volatil it Acidi grassi a catena corta ja ... more details
File Methyl Linoleate.png thumb upright Space filling model of methyl linoleate, or linoleic acid methyl ester, a common methyl ester produced from soybean or canola oil and methanol Fattyacid esters FAEs are a type of ester that result from the combination of a fattyacid with an alcohol . When the alcohol component is glycerol , the fattyacid esters produced can be monoglyceride s, diglyceride s, or triglyceride s, all of which are components of vegetable fats and oils . Biodiesel s are typically fattyacid esters produced by the transesterification of vegetable fats and oils which results in the replacement of the glycerol component with a different alcohol. See also Fattyacid methyl ester Fattyacid amide ester stub Category Carboxylate esters ... more details
enzyme Name fattyacid O methyltransferase EC number 2.1.1.15 CAS number 37256 89 6 IUBMB EC number 2 1 1 15 GO code 0030733 image width caption In enzymology , a fattyacid O methyltransferase EC number 2.1.1.15 is an enzyme that catalysis catalyzes the chemical reaction S adenosyl L methionine a fattyacid math rightleftharpoons math S adenosyl L homocysteine a fattyacid methyl ester Thus, the two substrate biochemistry substrates of this enzyme are S Adenosyl methionine S adenosyl methionine and fattyacid , whereas its two product chemistry products are S adenosylhomocysteine and fattyacid methyl ester . This enzyme belongs to the family of transferase s, specifically those transferring one carbon group methyltransferases. The systematic name of this enzyme class is S adenosyl L methionine fattyacid O methyltransferase . Other names in common use include fattyacid methyltransferase , and fattyacid O methyltransferase . References reflist 1 cite journal author Akamatsu Y, Law JH date 1970 title The enzymatic synthesis of fattyacid methyl esters by carboxyl group alkylation journal J. Biol. Chem. volume 245 pages 709&ndash 13 pmid 4984625 issue 4 transferase stub Category EC 2.1.1 Category Enzymes of unknown structure it Acido grasso O metiltransferasi ja O ... more details
For an explanation of n and numerical nomenclature such as n 9 or 18 1 Fattyacid Nomenclature Fats n 9 fatty acids popularly referred to as 9 fatty acids or omega 9 fatty acids are a family of unsaturated fat unsaturated fattyacid s which have in common a final carbon carbon double bond Bond order double bond in the essential fattyacid Nomenclature and terminology n 9 position that is, the ninth bond from the end of the fattyacid. Background Some n 9s are common components of animal fat and vegetable oil . Two n 9 fatty acids important in industry are Oleic acid 18 1, n 9 , which is a main component of olive oil and other monounsaturated fat s Erucic acid 22 1, n 9 , which is found in rapeseed , wallflower seed, and mustard seed . Rapeseed with high erucic acid content is grown for commercial use in paintings and coatings as a drying oil . Rapeseed oil, with some of the acid removed, is commonly known as canola oil . Unlike Omega 3 fatty acids n 3 and Omega 6 fatty acids n 6 fatty acids, n 9 fatty acids are not classed as essential fatty acids EFA . This is both because they can ... s. Under severe conditions of Essential fattyacid EFA deprivation, mammals will elongate and desaturate oleic acid to make mead acid , 20 3, n 9 . ref name lipomics cite web url http www.lipomics.com resources fatty acids 20 3n9.htm author Lipomics title Mead acid accessdate February 14 ... fattyacid , lists of fatty acids including n 3, n 6, and n 9 fatty acids Omega 3 fattyacid Omega 6 fattyacid Omega 7 fattyacid References Reflist Additional references Refbegin cite web author ... February 11, 2006 Refend Lipids DEFAULTSORT Omega 9 FattyAcid Category Fatty acids ca cids grassos ... cgi pmidlookup?view long&pmid 2106775 ref List of n 9 fatty acids class wikitable Common name Lipid name Chemical name oleic acid 18 1 n 9 9 octadecenoic acid Elaidic acid 18 1 n 9 E octadec 9 enoic acid eicosenoic acid 20 1 n 9 11 eicosenoic acid mead acid 20 3 n 9 5,8,11 eicosatrienoic acid erucic ... more details
double bonds C C C C C C The essential fatty acids are all omega 3 and 6 methylene interrupted fatty acids. See more at Essential fattyacid Nomenclature and terminology Essential fatty acids&mdash ... 3 fattyacid s Hexadecatrienoic acid HTA 16 3 n 3 all cis 7,10,13 hexadecatrienoic acid Alpha linolenic acid ALA 18 3 n 3 all cis 9,12,15 octadecatrienoic acid Stearidonic acid SDA 18 4 n 3 all cis 6,9,12,15, octadecatetraenoic acid Eicosatrienoic acid ETE 20 3 n 3 all cis 11,14,17 eicosatrienoic acid Eicosatetraenoic acid ETA 20 4 n 3 all cis 8,11,14,17 eicosatetraenoic acid Eicosapentaenoic acid EPA, Timnodonic acid 20 5 n 3 all cis 5,8,11,14,17 eicosapentaenoic acid Heneicosapentaenoic acid HPA 21 5 n 3 all cis 6,9,12,15,18 heneicosapentaenoic acid Docosapentaenoic acid DPA, Clupanodonic acid 22 5 n 3 all cis 7,10,13,16,19 docosapentaenoic acid Docosahexaenoic acid DHA, Cervonic acid 22 6 n 3 all cis 4,7,10,13,16,19 docosahexaenoic acid Tetracosapentaenoic acid 24 5 n 3 all cis 9,12,15,18,21 tetracosapentaenoic acid Tetracosahexaenoic acid Nisinic acid 24 6 n 3 all cis 6,9,12,15,18,21 ... Omega 6 fattyacid s Linoleic acid 18 2 n 6 all cis 9,12 octadecadienoic acid Gamma linolenic acid ... name align center Omega 9 fattyacid s, mono and polyunsaturated Oleic acid sup sup 18 1 n 9 cis ... bonds C C C C class wikitable Common name Lipid name Chemical name align center Conjugated fattyacid ..., see Essential fattyacid interactions for detail. See also Fattyacid Essential fattyacid Unsaturated ...Polyunsaturated fatty acids PUFAs are fatty acids that contain more than one double bond in their backbone. This class includes many important compounds, such as essential fattyacid s and those that give drying oil s their characteristic property. Polyunsaturated fatty acids can be classified in various groups by their chemical structure Methylene Interrupted Polyenes These fatty acids have 2 or more ... Baggott, James year 1997 title The divinylmethane pattern in fatty acids location Salt Lake City, UT ... more details
Omega 7 fatty acids are a class of unsaturated fatty acids in which the site of unsaturation is seven carbon atoms from the end of the carbon chain. The two most common omega 7 fatty acids in nature are palmitoleic acid and vaccenic acid . ref cite journal title Formation of n 9 and n 7 cis monounsaturated fatty acids in seeds of higher plants author Mukherjee, Kumar D. Kiewitt, Irmgard journal Planta year 1980 volume 149 issue 5 pages 461 463 ref Two rich sources include macadamia nut oil and sea buckthorn oil . cn date April 2012 The monounsaturated omega 7 fatty acids have the general chemical structure CH sub 3 sub CH sub 2 sub sub 5 sub CH CH CH sub 2 sub sub n sub CO sub 2 sub H. class wikitable Common name Lipid name Chemical name none 12 1 n 7 5 Dodecenoic acid none 14 1 n 7 7 Tetradecenoic acid Palmitoleic acid 16 1 n 7 9 Hexadecenoic acid Vaccenic acid 18 1 n 7 11 Decenoic acid Paullinic acid 20 1 n 7 13 Eicosenoic acid none 22 1 n 7 15 Docosenoic acid none 24 1 n 7 17 Tetracosenoic acid See also Omega 3 fattyacid Omega 6 fattyacid Omega 9 fattyacid References reflist biochem stub Category Fatty acids ... more details
metabolism FattyaciddegradationFattyacid Essential fattyacid Enoyl acyl carrier protein reductase ...enzyme Name Fattyacid synthase EC number 2.3.1.85 CAS number 9045 77 6 IUBMB EC number 2 3 1 85 GO code 0004312 image width caption PBB geneid 2194 Fattyacid synthase FAS is an enzyme that in humans ... encoding the human fattyacid synthase gene journal Genomics volume 23 issue 2 pages 420 4 year 1995 ... title Entrez Gene FASN fattyacid synthase url http www.ncbi.nlm.nih.gov sites entrez?Db gene&Cmd ShowDetailView&TermToSearch 2194 accessdate ref Fattyacid synthase is a multi enzyme protein that catalyzes fattyacid synthesis . It is not a single enzyme but a whole enzymatic system composed of two ... AW, Strauss AW, Hennessy S, Vagelos PR title Regulation of synthesis of hepatic fattyacid synthetase binding of fattyacid synthetase antibodies to polysomes journal Proc. Natl. Acad. Sci. U.S.A. ... KC, Vanaman TC, Wakil SJ title Presence of two polypeptide chains comprising fattyacid synthetase ... Structural and functional organization of the animal fattyacid synthase journal Prog. Lipid Res ... chain saturated fattyacid s. ref name entrez Metabolic function Fatty acids are aliphatic acids ... protein reductase enol reductase ER . The growing fattyacid chain is carried between these active sites ... palmitidic acid . Classes There are two principal classes of fattyacid synthases. Type I systems utilise ... the structural arrangement of fungal and mammalian synthases differ . A Type I fattyacid synthase system ... by the use of discrete, monofunctional enzymes for fattyacid synthesis. Inhibitors of this pathway ... cite journal author Chirala SS, Jayakumar A, Gu ZW, Wakil SJ title Human fattyacid synthase ... fattyacid synthase one gene, one polypeptide, seven enzymes journal FASEB J. volume 8 issue 15 pages ... monomer. ref name pmid6112225 cite journal author Stoops JK, Wakil SJ title Animal fattyacid ... doi url issn ref ref name pmid7061475 cite journal author Stoops JK, Wakil SJ title Animal fattyacid ... more details
Fattyacid oxidation inhibitors are a new potent class of drugs used in treatment of stable angina pectoris and an addition in treatment of chronic heart failure. Drugs CPT I inhibitors Etoxomir , Oxfenicine , Perhexiline br CPT I carnitine palmitoyl transferase converts fatty acyl CoA to fatty acyl carnitine. Carnitine biosynthesis inhibitor Mildronate ref J Cardiovasc Pharmacol. 2006 Dec 48 6 314 9. Mildronate, an inhibitor of carnitine biosynthesis, induces an increase in gamma butyrobetaine contents and cardioprotection in isolated rat heart infarction. Liepinsh E, Vilskersts R, Loca D, Kirjanova O, Pugovichs O, Kalvinsh I, Dambrova M. Latvian Institute of Organic Synthesis, Riga, Latvia.http www.ncbi.nlm.nih.gov pubmed 17204911 ref 3 KAT inhibitors Trimetazidine br 3 KAT 3 ketoacyl coenzyme A thiolase inhibitors directly inhibits fattyacid beta oxidation. pFOX partial fattyacid oxidation inhibitors Ranolazine br pFOX directly inhibits fattyacid beta oxidation. ref Partial fattyacid oxidation inhibitors a potentially new class of drugs for heart failure European Journal of Heart Failure 4 2002. 3 6 http eurjhf.oxfordjournals.org content 4 1 3.full.pdf html ref References Reflist Category Drugs acting on the cardiovascular system ... more details
Refimprove date August 2010 Fattyacid synthesis is the creation of fattyacid s from acetyl CoA and malonyl CoA precursors through action of enzymes called fattyacid synthase s. It is an important part ... saturated and unsaturated. Saturated Straight Chain Fatty Acids File Saturated FattyAcid Synthesis.png thumb left px150 Synthesis of saturated fatty acids via FattyAcid Synthase II in E. coli Much like oxidation , straight chain fattyacid synthesis occurs via the six recurring reactions shown ..., and Wolf Hamm. FattyAcid Biosynthesis. Trans Fatty Acids. Oxford Blackwell Pub., 2008. 12. Print ... found in Escherichia coli . ref name transFA These reactions are performed by fattyacid synthase ... index.htm . ref In animals, as well as yeast and some fungi, these same reactions occur on fattyacid ... a fattyacid. FASI is less efficient than FASII however, it allows for the formation of more molecules ... 0 carbon fattyacid has been formed, it can undergo a number of modifications, in particular by fattyacid synthase III FASIII , which uses 2 carbon molecules to elongate preformed fatty acids. ref name ... into the fattyacid synthesis pathway. Acetyl CoA carboxylase is the point of regulation in saturated straight chain fattyacid synthesis, and is subject to both phosphorylation and allosteric regulation .... When there are high levels of palmitoyl CoA, the final product of saturated fattyacid synthesis ... J. FattyAcid Synthesis. Rensselaer Polytechnic Institute RPI Architecture, Business, Engineering ... in the oxidation of both the fattyacid and NADH. the most common desaturation reactions involve .... ref name FAcontrol Aguilar, Pablo S, and Diegode Mendoza. Control of fattyacid desaturation ... the double bond before elongation utilizing the normal fattyacid synthesis machinery. In Escherichia ... it is specific for the 10 carbon saturated fattyacid synthesis intermediate hydroxydecanoyl ACP ... fattyacid, or FabA will catalyze the isomerization into the cis 3 decenoyl intermediate ... more details
Unreferenced date December 2009 Fattyacid methyl esters FAME are a type of fattyacid ester than can be produced by an alkali catalyzed reaction between fat s or fattyacid s and methanol . The molecules in biodiesel are primarily FAMEs, usually obtained from vegetable oil s by transesterification . Image Transesterification FAME.svg left clear left Since every microorganism has its specific FAME profile microbial fingerprinting , it can be used as a tool for microbial source tracking MST . The types and proportions of fatty acids present in cytoplasm membrane and outer membrance gram negative lipids of cells are major phenotypic trains. Clinical analysis can determine the lengths, bonds, rings and branches of the FAME. To perform this analysis, a bacterial culture is taken, and the fatty acids extracted and used to form methyl esters . The volatile derivatives are then introduced into a gas chromatography gas chromatagraph , and the patterns of the peaks help identify the organism. This is widely used in characterizing new species of bacteria, and is useful for identifying pathogenic strains. See also Biodiesel Biodiesel production DEFAULTSORT FattyAcid Methyl Ester Category Fatty acids Category Biodiesel Category Carboxylate esters Biochem stub cs Metylester epkov ho oleje de Fetts uremethylester fr Ester m thylique d huile v g tale ko pl FAME pt ster met lico de cido graxo sv Fettsyrametylestrar zh ... more details
Infobox Disease Name Fattyacid metabolism disorder Image Acyl CoA2.svg Caption Acyl CoA , one of the compounds involved in fattyacid metabolism DiseasesDB ICD10 ICD10 E 71 3 e 70 ICD9 ICD9 277.81 ICD9 .... This leaves the body unable to produce energy within the liver and muscles from fattyacid ... the glucose in the body has been expended, a normal body digests fats. Individuals with a fattyacid ... name FOD ref Most individuals with a fattyacid metabolism disorder are able to live a normal active ... arise. When in need of glucose the body of a person with a fattyacid metabolism disorder will still ... and other internal organs. Fattyacid metabolism disorders are sometimes classified with the lipid ... Diagnosis of Fattyacid metabolism disorder requires extensive lab testing. There are many labs that can be used for testing and diagnosing Fattyacid metabolism disorders. Eg. http genes r ushttp genes ... are also produced and ketotic hypoglycaemia is expected. However, in cases where fattyacid metabolism ... pathways for fattyacid metabolism. Causes Fattyacid metabolism disorders result when both parents ... CTD.pdf title FattyAcid Oxidation Disorders work accessdate 2011 11 11 ref Types Incomplete list of various fattyacid metabolism disorders. ref name FOD ref Carnitine Transport Defect Carnitine ... deficiency M SCHAD deficiency Oxidation The term fattyacid oxidation disorder FAOD is sometimes used, especially when there is an emphasis on the oxidation of the fattyacid . ref name pmid15817498 cite journal author Shekhawat PS, Matern D, Strauss AW title Fetal fattyacid oxidation disorders, their effect ... name pmid10352164 cite journal author Ibdah JA, Bennett MJ, Rinaldo P, et al title A fetal fattyacid ... web url http www.merck.com mmpe sec19 ch296 ch296e.html title FattyAcid and Glycerol Metabolism Disorders ... Image LCHAD deficiency.jpg thumb center 500px Schematic demonstrating mitochondrial fattyacid beta ... for fattyacid metabolism disorders is dietary modification. It is essential that the blood glucose ... more details
Pfam box Symbol Fattyacid desaturase 1 Name Fattyacid desaturase, type 1 Pfam PF00487 InterPro IPR005804 PROSITE PDB Pfam box Symbol Fattyacid desaturase 2 Name Fattyacid desaturase, type 2 Pfam PF03405 InterPro IPR005067 PROSITE PDB PDB 1afr PDB 1oq4 PDB 1oq7 PDB 1oq9 PDB 1oqb A fattyacid desaturase is an enzyme that removes two hydrogen atoms from a fattyacid , creating a carbon carbon Covalent ... at a fixed position from the carboxyl group of a fattyacid for example, Stearoyl CoA desaturase ... from the methyl end of the fattyacid. In the Fattyacid synthesis biosynthesis of essential fattyacid s, an Fattyacid synthesis Elongation elongase alternates with different desaturases for example ... 5 sup desaturase production have been located on human chromosome 11. Human fattyacid desaturases ... 25 pages 14755 14761 year 1989 pmid 2570068 ref Family 2 is composed of Bacterial fattyacid desaturases ... by genetic manipulation of fattyacid desaturation journal Nature volume 347 issue 6289 pages ... double bond at the delta 12 position of fattyacid bound to membranes glycerolipids. DesA is involved ... CoA desaturase 1 , is used to synthesize oleic acid , a monounsaturated, ubiquitous component of all cells in the human body. sup 9 sup desaturase produces oleic acid by desaturating stearic acid , a saturated fattyacid either synthesized in the body from palmitic acid or ingested directly. sup 6 sup and sup 5 sup desaturases are required for the synthesis of highly unsaturated fatty acids such as eicosapentaenoic acid eicosopentaenoic and docosahexaenoic acid s synthesized from a linolenic acid , and arachidonic acid synthesized from linoleic acid . This is a multi stage process requiring ... to produce oleoyl ACP. This enzyme is responsible for the conversion of saturated fatty acids to unsaturated fatty acids in the synthesis of vegetable oils. Cyanobacterial DesA, ref name PUB00004074 ... on the degree of unsaturation of fatty acids of the membrane lipids. References reflist cite journal ... more details
For an explanation of n and numerical nomenclature such as n 6 or 18 2 Fattyacid Nomenclature Fats Image LAnumbering.png 375px thumb The chemical structure of linoleic acid , a common n 6 fattyacid found ... acids are a family of unsaturated fat unsaturated fattyacid s that have in common a final carbon carbon double bond Bond order double bond in the Fattyacid Nomenclature n 6 position, that is, the sixth ... acid n 3 fatty acids affect the relative storage, mobilization, conversion and action of the n 3 and n 6 eicosanoid precursors. See Essential fattyacid interactions for more information. Key n 6 fatty acids Linoleic acid 18 2, n 6 , the shortest chained n 6 fattyacid, is an essential fattyacid . Arachidonic acid 20 4 is a physiologically significant n 6 fattyacid and is the precursor for prostaglandin ... suggests that excessive levels of certain n 6 fatty acids, relative to certain Omega 3 fattyacid n ... FattyAcid Ratio The Scientific Evidence pages 1 174 year 2003 month September publisher Karger url ... Dietary omega 3 polyunsaturated fattyacid supplementation and airway hyperresponsiveness in asthma ..., Kent M. title Reduced asthma symptoms with n 3 fattyacid ingestion are related to 5 series leukotriene ... signaling lessons learned about the regulation of brain fattyacid metabolism journal Prostaglandins ... requirement for linoleic acid the key n 6 fattyacid , has been seriously questioned, because ... an oil containing a high content of linolenic acid , a type of n 6 fattyacid. Four major food oils ... List of n 6 fatty acids class wikitable Common name Lipid name Chemical name Linoleic acid LA 18 ... acid 18 3 n 6 8E,10E,12Z octadecatrienoic acid See also Essential fattyacid interactions Essential nutrients alpha Linolenic acid Linolenic acid Omega 3 fattyacid Omega 7 fattyacid Omega 9 fattyacid Wheat germ oil Notes & references Reflist Additional sources Refbegin cite news first Steve ... 2005 09 02 accessdate 2008 03 23 cite news title Brain fattyacid levels linked to depression url ... more details
Fats Essential fatty acids , or EFAs , are fattyacid s that humans and other animals must ingest because .... ISBN 0 8121 0645 8. pp. 134 138. ref The term essential fattyacid refers to fatty acids ... for humans alpha linolenic acid an omega 3 fattyacid and linoleic acid an omega 6 fattyacid . ref ... conditionally essential include gamma linolenic acid an omega 6 fattyacid , lauric acid a saturated fattyacid , and palmitoleic acid a monounsaturated fattyacid . ref Enig 2005 p.249 ref ..., see Essential fattyacid interactions for detail. In the body, essential fatty acids serve multiple ... fattyacid form, the chemical structure of stearidonic acid is Image Fattyacid numbering.png ... For complete tables of 3 and 6 essential fatty acids, see Polyunsaturated fattyacid s. The essential ... acid 3 fattyacid s alpha linolenic acid Linolenic acid or ALA 18 3 Omega 6 fattyacid 6 fatty acids Linoleic acid or LA 18 2 These two fatty acids cannot be Biosynthesis synthesised by humans ... polyunsaturated fatty acids LC PUFA omega 3 fattyacid 3 fattyacid s eicosapentaenoic acid or EPA 20 5 docosahexaenoic acid or DHA 22 6 Omega 6 fattyacid 6 fatty acids gamma linolenic acid or GLA 18 3 dihomo gamma linolenic acid or DGLA 20 3 arachidonic acid or AA 20 4 Omega 9 fattyacid ... 3 and any 6 can relieve the worst symptoms of fattyacid deficiency for its class. Particular fatty ... writing, common usage is that the term essential fattyacid comprises all the 3 or 6 fatty acids. Conjugated system Conjugated fatty acids like calendic acid are not normally considered essential ... 6 pages 659 62 year 1996 month June pmid 8646953 quote Arachidonic acid is an essential fattyacid ... quote T he turnover of essential fatty acids is increased 7 . Arachidonic acid is one of the essential ... fattyacid deficiency Essential fattyacid deficiency results in a dermatitis similar to that seen ... transmission and membrane fluidity . The omega 6 fattyacid to omega 3 fattyacid ratio ... more details
enzyme Name fattyacid synthase EC number 2.3.1.85 CAS number 9045 77 6 IUBMB EC number 2 3 1 85 GO code 0004312 image width caption In enzymology , a fattyacid synthase EC number 2.3.1.85 is an enzyme that catalysis catalyzes the chemical reaction acetyl CoA n malonyl CoA 2n NADPH 2n H sup sup math rightleftharpoons math a long chain fattyacid n sup sup 1 CoA n CO sub 2 sub 2n NADP sup sup The 4 substrate biochemistry substrates of this enzyme are acetyl CoA , malonyl CoA , nicotinamide adenine dinucleotide phosphate NADPH , and hydrogen ion H sup sup , whereas its 4 product chemistry products are long chain fattyacid , coenzyme A CoA , carbon dioxide CO sub 2 sub , and nicotinamide adenine dinucleotide phosphate NADP sup sup . This enzyme belongs to the family of transferase s, specifically those acyltransferase s transferring groups other than aminoacyl groups. The systematic name of this enzyme class is acyl CoA malonyl CoA C acyltransferase decarboxylating, oxoacyl and enoyl reducing and thioester hydrolysing . This enzyme is also called yeast fattyacid synthase . This enzyme participates in fattyacid biosynthesis and insulin signaling pathway . Structural studies As of late 2007, 7 tertiary structure structures have been solved for this class of enzymes, with Protein Data Bank PDB accession codes PDB link 1N8L , PDB link 2CF2 , PDB link 2CG5 , PDB link 2JFD , PDB link 2JFK , PDB link 2PNG , and PDB link 2PX6 . References reflist 1 cite journal author Stoops JK, Ross P, Arslanian MJ, Aune KC, Wakil SJ, Oliver RM date 1979 title Physicochemical studies of the rat liver and adipose fattyacid synthetases journal J. Biol. Chem. volume 254 pages 7418&ndash 26 pmid 457689 issue 15 cite journal author Wakil SJ, Stoops JK, Joshi VC date 1983 title Fattyacid synthesis and its regulation journal Annu. Rev. Biochem. volume 52 pages 537&ndash 79 pmid 6137188 doi 10.1146 annurev.bi.52.070183.002541 transferase stub Category EC 2.3.1 Category NADPH dependent enzymes Category ... more details
enzyme Name S 2 hydroxy fattyacid dehydrogenase EC number 1.1.1.99 CAS number 37250 33 2 IUBMB EC number 1 1 1 99 GO code 0047050 image width caption In enzymology , a S 2 hydroxy fattyacid dehydrogenase EC number 1.1.1.99 is an enzyme that catalysis catalyzes the chemical reaction S 2 hydroxystearate NAD sup sup math rightleftharpoons math 2 oxostearate NADH H sup sup Thus, the two substrate biochemistry substrates of this enzyme are S 2 hydroxystearate and nicotinamide adenine dinucleotide NAD sup sup , whereas its 3 product chemistry products are 2 oxostearate , nicotinamide adenine dinucleotide NADH , and hydrogen ion H sup sup . This enzyme belongs to the family of oxidoreductase s, specifically those acting on the CH OH group of donor with NAD or NADP as acceptor. The systematic name of this enzyme class is S 2 hydroxystearate NAD oxidoreductase . Other names in common use include dehydrogenase, L 2 hydroxy fattyacid , L 2 hydroxy fattyacid dehydrogenase , and 2 hydroxy fattyacid oxidase . References reflist 1 cite journal author Huang WY, Tang J date 1970 title Carboxyl terminal sequence of human gastricsin and pepsin journal J. Biol. Chem. volume 245 pages 2189&ndash 93 pmid 4909888 issue 9 1.1.1 enzyme stub Category EC 1.1.1 Category NADH dependent enzymes Category Enzymes of unknown structure it S 2 idrossi acido grasso deidrogenasi ja S 2 ... more details
The fattyacid binding protein s FABP s are a family of carrier protein s for fatty acids and other lipophilic substances such as eicosanoid s and retinoid s. ref name pmid16424607 cite journal author Chmurzy ska A title The multigene family of fattyacid binding proteins FABPs function, structure and polymorphism journal J. Appl. Genet. volume 47 issue 1 pages 39 48 year 2006 pmid 16424607 doi 10.1007 BF03194597 issn url http jag.igr.poznan.pl 2006 Volume 47 1 abstracts 313.html ref These proteins are thought to facilitate the transfer of fatty acids between extra and intracellular cell membrane membranes . ref name pmid12479566 cite journal author Weisiger RA title Cytosolic fattyacid binding proteins catalyze two distinct steps in intracellular transport of their ligands journal Mol. Cell. Biochem. volume 239 issue 1 2 pages 35 43 year 2002 pmid 12479566 doi 10.1023 A 1020550405578 ref Some family members are also believed to transport lipophilic molecules from outer cell membrane to certain intracellular receptor s such as PPAR . ref name pmid12077340 cite journal author Tan NS, Shaw NS, Vinckenbosch N, Liu P, Yasmin R, Desvergne B, Wahli W, Noy N title Selective cooperation between fattyacid binding proteins and peroxisome proliferator activated receptors in regulating transcription journal Mol. Cell. Biol. volume 22 issue 14 pages 5114 27 year 2002 pmid 12077340 doi 10.1128 MCB.22.14.5114 5127.2002 pmc 139777 ref Levels of fattyacid binding protein have been shown to decline with ageing in the mouse brain, possibly contributing to age associated decline in synapse synaptic activity. ref name pmid10497880 cite journal author Pu L, Igbavboa U, Wood WG, Roths JB, Kier AB, Spener F, Schroeder F title Expression of fattyacid binding proteins is altered in aged mouse ... References Reflist External links MeshName FattyAcid Binding Proteins Carrier proteins DEFAULTSORT FattyAcid Binding Protein Category Water soluble transporters protein stub ru , ... more details
enzyme Name fattyacid peroxidase EC number 1.11.1.3 CAS number 9029 52 1 IUBMB EC number 1 11 1 3 GO code 0047888 image width caption In enzymology , a fattyacid peroxidase EC number 1.11.1.3 is an enzyme that catalysis catalyzes the chemical reaction palmitate 2 H sub 2 sub O sub 2 sub math rightleftharpoons math pentadecanal CO sub 2 sub 3 H sub 2 sub O Thus, the two substrate biochemistry substrates of this enzyme are palmitate and hydrogen peroxide H sub 2 sub O sub 2 sub , whereas its 3 product chemistry products are pentadecanal , carbon dioxide CO sub 2 sub , and water H sub 2 sub O . This enzyme belongs to the family of oxidoreductase s, specifically those acting on a peroxide as acceptor peroxidases . The systematic name of this enzyme class is hexadecanoate hydrogen peroxide oxidoreductase . This enzyme is also called long chain fattyacid peroxidase . References reflist 1 cite journal author MARTIN RO, STUMPF PK date 1959 title Fat metabolism in higher plants. XII. alpha Oxidation of long chain fatty acids journal J. Biol. Chem. volume 234 pages 2548&ndash 54 pmid 14421733 1.11 enzyme stub Category EC 1.11.1 Category Enzymes of unknown structure it Acido grasso perossidasi ja ... more details
protein Name free fattyacid receptor 1 caption image width HGNCid 4498 Symbol FFAR1, FFA1R AltSymbols GPR40 EntrezGene 2864 OMIM 603820 RefSeq NM 005303 UniProt O14842 PDB ECnumber Chromosome 19 Arm q Band 13.1 LocusSupplementaryData protein Name free fattyacid receptor 2 caption image width HGNCid 4501 Symbol FFAR2 AltSymbols GPR43, FFA2R EntrezGene 2867 OMIM 603823 RefSeq NM 005306 UniProt O15552 PDB ECnumber Chromosome 19 Arm q Band 13.1 LocusSupplementaryData protein Name free fattyacid receptor 3 caption image width HGNCid 4499 Symbol FFAR3 AltSymbols GPR41, FFA3R EntrezGene 2865 OMIM 603821 RefSeq NM 005304 UniProt O14843 PDB ECnumber Chromosome 19 Arm q Band 13.1 LocusSupplementaryData protein Name GPR42 G protein coupled receptor 42 caption image width HGNCid 4500 Symbol GPR42 AltSymbols GPR41L, FFAR1L EntrezGene 2866 OMIM 603822 RefSeq NM 005305 UniProt O15529 PDB ECnumber Chromosome 19 Arm q Band 31.1 LocusSupplementaryData The free fattyacid receptor is a G protein coupled receptor which binds free fatty acids . ref name pmid17052194 cite journal author Covington DK, Briscoe CA, Brown AJ, Jayawickreme CK title The G protein coupled receptor 40 family GPR40 GPR43 and its role in nutrient sensing journal Biochem. Soc. Trans. volume 34 issue Pt 5 pages 770 3 year 2006 pmid 17052194 doi 10.1042 BST0340770 ref There are four variants of the receptor, each encoded by a separate gene gene FFAR1 , gene FFAR2 , gene FFAR3 , gene GPR42 . References references External links cite web url http www.iuphar db.org GPCR ChapterMenuForward?chapterID 1331 title Free FattyAcid Receptors accessdate author authorlink coauthors date format work IUPHAR Database of Receptors and Ion Channels publisher International Union of Basic and Clinical Pharmacology pages language archiveurl archivedate quote MeshName FFAR1 protein, human MeshName G protein coupled receptor 43, human MeshName FFAR3 protein, human transmembranereceptor stub G protein coupled receptors Category G protein ... more details
3 fattyacid Potential health benefits health benefits and are considered essential fatty acids , meaning ... fatty acids including eicosapentaenoic acid EPA, 20 carbons and 5 double bonds , docosahexaenoic acid ... thumb Chemical structure of alpha linolenic acid ALA , an essential n 3 fattyacid, 18 3 9c,12c,15c ... structure of docosahexaenoic acid DHA . N 3 fatty acids that are important in human physiology ... acid Clear Significance to human nutrition and health History Although omega 3 fatty acids ... N title Fattyacid composition of the plasma lipids in Greenland Eskimos journal Am J Clin Nutr volume ... the modern definition of essential fattyacid essential is stricter. A small amount of n 3 in the diet ... found that omega 6 fattyacid n 6 fatty acids such as gamma linolenic acid linolenic acid and arachidonic ... linolenic acid to long chain n 3 fatty acids in man. journal Curr. Opin. Clin. Nutr. Metab. Care ... of alpha linolenic acid to longer chain polyunsaturated fatty acids in human adults. journal ... and n 6 linoleic acid must be obtained from food. Synthesis of the longer n 3 fatty acids from linolenic ... 3 ratio Main Essential fattyacid interactions Some clinical studies ref name Lands1992 ref name Okuyama2001 ... fattyacid to maintenance medication treatment for recurrent unipolar depressive disorder journal Am ... cancer risk. High levels of DHA, however, the most abundant n 3 polyunsaturated fattyacid in erythrocyte ... n 3 fattyacid supplements benefit cancer patients, improving appetite, weight, and quality of life ... impairment induced by interleukin 1beta administrations effects of omega 3 fattyacid EPA treatment ...Omega 3 fatty acids popularly referred to as 3 fatty acids or n 3 fatty acids are fats commonly found in marine and plant oils. They are Unsaturated fat polyunsaturated fatty acids with a double bond C C starting after the third carbon atom from the end of the carbon chain. The fatty acids have two ends the acid COOH end and the methyl CH3 end. The location of the first double bond is counted from ... more details
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