Refimprove date August 2010 Fattyacidsynthesis 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 of the lipogenesis process, which together with glycolysis stands behind creating fats from blood sugar in living organisms. De Novo Synthesis in Humans In humans, fatty acids are predominantly formed in the liver and lactating mammary glands , and, to a lesser extent, the adipose tissue . Most acetyl CoA is formed from pyruvate by pyruvate dehydrogenase in the mitochondria. Acetyl CoA produced in the mitochondria is condensed with oxaloacetate by citrate synthase to form citrate , which is then transported into the cytosol and broken down to yield acetyl CoA and oxaloacetate by ATP citrate lyase . Oxaloacetate in the cytosol is reduced to malate by cytoplasmic malate dehydrogenase , and malate is transported back into the mitochondria to participate in the Citric acid cycle . ref cite journal doi 10.1159 000100426 pmid 17344645 volume 68 issue 2 year 2007 pages 72 82 title SREBP 1c Transcription Factor and Lipid Homeostasis Clinical Perspective journal Hormone Research year 2007 first P. last Ferre coauthors F. Foufelle volume 68 issue 2 pages 72 82 pmid 17344645 url http content.karger.com ... DEFAULTSORT FattyAcidSynthesis Category Metabolism Category Fatty acids Category Biosynthesis ... on a large dimeric protein, Fattyacid synthase , which has the full complement of enzymatic activities required to synthesize and liberate a free fattyacid. class wikitable Step Description Diagram ... and malonyl units are shown as their Acyl carrier protein ACP thioesters This is how fatty ... to Coenzyme A , as this is done with all free fatty acids inside cells to prevent lysis of the cell ... acid, then moves into the endoplasmic reticulum , where it can be elongated up to a length ... Polytechnic Institute http web.indstate.edu thcme mwking lipid synthesis.html synthesis Overview ... more details
fattyacidsynthesis The biosynthesis of fatty acids involves the condensation of acetyl CoA . Since ... Fattyacidsynthesis List of saturated fatty acids Saturated fat Unsaturated fat Vegetable oils ...Distinguish fat File Butanoic acid.png.svg thumb Butyric acid , a short chain fattyacid Fats In chemistry , especially biochemistry , a fattyacid is a carboxylic acid with a long unbranched aliphatic ..., often categorized as short, medium, or long. Short chain fattyacid s SCFA are fatty acids with aliphatic ... top Elaidic acid and the cis isomer oleic acid . Unsaturated fatty acids resemble saturated fatty acids ... 2 sub sub 7 sub COOH cis 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 ... sub COOH cis , cis sup 9 sup , sup 12 sup 18 2 omega 6 fattyacid n 6 Linoelaidic acid CH sub 3 ... 9 sup , sup 12 sup 18 2 omega 6 fattyacid n 6 Alpha linolenic acid Linolenic acid CH sub 3 sub CH ... sup 9 sup , sup 12 sup , sup 15 sup 18 3 omega 3 fattyacid n 3 Arachidonic acid CH sub 3 sub CH ... , cis , cis sup 5 sup sup 8 sup , sup 11 sup , sup 14 sup 20 4 omega 6 fattyacid n 6 Eicosapentaenoic ... sup , sup 11 sup , sup 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 ... 3 fattyacid n 3 Essential fatty acids Main Essential fattyacidFatty acids that are required ... acids one has a double bond Omega 3 fattyacid three carbon atoms removed from the methyl end the other has a double bond Omega 6 fattyacid six carbon atoms removed from the methyl end. Humans lack ... ref Two essential fatty acids are linoleic acid LA and alpha linolenic acid ALA . They are widely ... n 3 fatty acids eicosapentaenoic acid EPA and docosahexaenoic acid DHA , which can also be obtained ... sub 2 sub sub 24 sub COOH 26 0 Nomenclature File Fattyacid numbering.png thumb upright 2 Numbering ... 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 ... more details
from the methyl end of the fattyacid. In the Fattyacidsynthesis biosynthesis of essential fattyacid s, an Fattyacidsynthesis Elongation elongase alternates with different desaturases for example ...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 ... 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 ... is responsible for the conversion of saturated fatty acids to unsaturated fatty acids in the synthesis ..., Murata N title Enhancement of chilling tolerance of a cyanobacterium by genetic manipulation of fattyacid desaturation journal Nature volume 347 issue 6289 pages 200 203 year 1990 pmid 2118597 ref , an enzyme that can introduce a second cis double bond at the delta 12 position of fattyacid bound ... 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 ... of lipids of cellular membranes being dependent on the degree of unsaturation of fatty acids of the membrane ... more details
s. Synthesis See Fattyacid See Fattyacidsynthesis Regulation and control It has long been held ...Expert subject Biochemistry date April 2008 Fattyacid s are an important source of energy and adenosine triphosphate ATP for many cellular organisms. Excess fatty acids, glucose , and other nutrients ... 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 ... of fattyacid. Fatty acids as an energy source Fatty acids, stored as triglycerides in an organism ... or oxidized for energy. The liver acts as a major organ for fattyacid treatment, processing chylomicron ... and liver for oxidation when blood sugar is low. Transport and oxidation Main Fattyacid degradation ... hormone sensitive lipase to break triglyceride s into glycerol and free fattyacid s for use in metabolism , a process called Fattyacid metabolism lipolysis . The free fatty acids move into the blood .... The enzymes used in fattyacid oxidation in animal cells are located in the mitochondrial matrix as was demonstrated by Eugene P. Kennedy and Albert Lehninger in 1948 . Free fattyacid chains of more ..., where they undergo Fattyacid degredation. Fattyacid degradation is the process in which fatty ... A to release the fattyacid and produce acetyl CoA . CPT I is believed to be the rate limiting step in fattyacid oxidation. Once inside the mitochondrial matrix, fatty acids undergo oxidation . During this process, two carbon molecules acetyl CoA are repeatedly cleaved from the fattyacid. Acetyl ... and control of metabolic reactions involving fat synthesis, see lipogenesis . See also Fattyacid synthase Essential fattyacid List of fattyacid metabolism disorders References references ... links http www2.ufp.pt pedros bq fatty.htm The chemical logic behind the metabolism of fattyacid ... 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
Unreferenced date February 2007 Fattyacid degradation 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 ... in fattyacid biosynthesis, in order to prevent futile cycling between beta oxidation and fattyacidsynthesis . 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 ... acid cycle . Metabolism DEFAULTSORT FattyAcid Degradation Category Metabolism Category Fatty ... 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
mergefrom Essential fattyacid deficiency discuss Talk Essential fattyacid deficiency Propose to merge with Essential Fatty Acids date January 2011 Fats Essential fatty acids , or EFAs , are fattyacid ... The term essential fattyacid refers to fatty acids required for biological processes, and not those that act only as fuel. Only two EFAs are known for humans alpha linolenic acid an omega 3 fattyacid and linoleic acid an omega 6 fattyacid . ref Whitney Ellie and Rolfes SR Understanding Nutrition ... linolenic acid an omega 6 fattyacid , lauric acid a saturated fattyacid , and palmitoleic acid a monounsaturated fattyacid . ref Enig 2005 p.249 ref When the two EFAs were first discovered in 1923 ... acids are mediated by their mutual interactions, see Essential fattyacid interactions for detail ... CH sub 2 sub group unless otherwise noted. So in free fattyacid form, the chemical structure of stearidonic acid is Image Fattyacid numbering.png 500px nonre of stearidonic acid showing physiological ... fatty acids, see Polyunsaturated fattyacid s. The essential fatty acids start with the short chain polyunsaturated fatty acids SC PUFA omega 3 fattyacid 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 ... acid 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 9 fatty acids are not essential in humans, because humans generally possess all the enzymes required for their synthesis. Essential Fatty Acids Mammals ... acid deficiency for its class. Particular fatty acids are still needed at critical life stages e.g. ... fattyacid comprises all the 3 or 6 fatty acids. Conjugated system Conjugated fatty acids like ... Arachidonic acid is an essential fattyacid doi 10.1007 BF02056946 ref ref name Carlstedt cite journal ... 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 Fattyacidsynthesis 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
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 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 fr Acide gras volatil ja ... 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 ... 1 n 9 13 docosenoic acid nervonic acid 24 1 n 9 15 tetracosenoic acid See also Polyunsaturated fattyacid , lists of fatty acids including n 3, n 6, and n 9 fatty acids Omega 3 fattyacid n 3 fattyacid Omega 6 fattyacid n 6 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 content abstract 51 3 385 accessdate February 11, 2006 year 1990 ref List of n 9 fatty acids class wikitable Common name Lipid name Chemical name oleic acid 18 1 n 9 9 octadecenoic acid eicosenoic ... more details
domains and their corresponding reactions, visualization by Kosi Gramatikoff. Fattyacid synthase FAS is a multi enzyme that plays a key role in fattyacidsynthesis . It is not a single enzyme but a whole ..., and is characterized by the use of discrete, monofunctional enzymes for fattyacidsynthesis. Inhibitors ... 8177 97 90177 5 url issn ref See also FattyacidsynthesisFattyacid metabolism Fattyacid degradation ... links MeshName FattyAcid Synthase http web.indstate.edu thcme mwking lipid synthesis.html synthesis ... fattyacid synthetase binding of fattyacid synthetase antibodies to polysomes journal Proc. Natl. Acad ... of the fattyacid synthetase multienzyme complex by limited trypsinization journal Proc. Natl ... AK title Structural and functional organization of the animal fattyacid synthase journal Prog ... reductase ER . The growing fattyacid chain is carried between these active sites while attached covalently ... and published in 2008 . Classes There are two principal classes of fattyacid synthases. Type I ... although the structural arrangement of fungal and mammalian synthases differ . A Type I fattyacid ... history of fattyacid synthases are very much intertwined with that of polyketide synthase s PKS . Polyketide ... SS, Jayakumar A, Gu ZW, Wakil SJ title Human fattyacid synthase role of interdomain in the formation ... name pmid8001737 cite journal author Smith S title The animal fattyacid synthase one gene, one polypeptide ... cite journal author Stoops JK, Wakil SJ title Animal fattyacid synthetase. A novel arrangement of the beta ... cite journal author Stoops JK, Wakil SJ title Animal fattyacid synthetase. Identification of the residues ... labeling of the two subunits of the homodimeric animal fattyacid synthase allows isolation of heterodimers ... topology of the animal fattyacid synthase by mutant complementation in vitro journal Biochemistry ... fattyacid synthase can occur both inter and intrasubunit. Reevaluation of the side by side ... of an active animal fattyacid synthase dimer with only one competent subunit journal Chem ... more details
enzyme Name Polyenoic fattyacid isomerase EC number 5.3.3.13 CAS number IUBMB EC number 5 3 3 13 GO code image width caption In enzymology , a polyenoic fattyacid isomerase EC number 5.3.3.13 is an enzyme that catalysis catalyzes the chemical reaction 5Z,8Z,11Z,14Z,17Z icosapentaenoate math rightleftharpoons math 5Z,7E,9E,14Z,17Z icosapentaenoate Hence, this enzyme has one substrate biochemistry substrate , 5Z,8Z,11Z,14Z,17Z icosapentaenoate , and one product chemistry product , 5Z,7E,9E,14Z,17Z icosapentaenoate . This enzyme belongs to the family of isomerase s, specifically those intramolecular oxidoreductase s transposing C C bonds. The systematic name of this enzyme class is 5Z,8Z,11Z,14Z,17Z icosapentaenoate Delta8,11 Delta7,9 isomerase trans double bond forming . Other names in common use include PFI , eicosapentaenoate cis Delta5,8,11,14,17 eicosapentaenoate , cis Delta5 trans Delta7,9 cis Delta14,17 isomerase , 5Z,8Z,11Z,14Z,17Z eicosapentaenoate Delta8,11 Delta7,8 isomerase , incorrect , 5Z,8Z,11Z,14Z,17Z eicosapentaenoate Delta8,11 Delta7,9 isomerase , and trans double bond forming . References reflist 1 cite journal author Wise ML, Hamberg M, Gerwick WH date 1994 title Biosynthesis of conjugated triene containing fatty acids by a novel isomerase from the red marine alga Ptilota filicina journal Biochemistry. volume 33 pages 15223&ndash 32 pmid 7803384 doi 10.1021 bi00255a002 issue 51 cite journal author Wise ML, Soderstrom K, Murray TF, Gerwick WH date 1996 title Synthesis and cannabinoid receptor binding activity of conjugated triene anandamide, a novel eicosanoid journal Experientia. volume 52 pages 88&ndash 92 pmid 8575565 doi 10.1007 BF01922423 issue 1 cite ... site of polyenoic fattyacid isomerase, a novel enzyme from the marine alga Ptilota filicina journal ... author Zheng W, Wise ML, Wyrick A, Metz JG, Yuan L, Gerwick WH date 2002 title Polyenoic fattyacid isomerase from the marine alga Ptilota filicina protein characterization and functional expression ... more details
6 fattyacid s Linoleic acid 18 2 n 6 all cis 9,12 octadecadienoic acid Gamma linolenic acid GLA 18 ... align center Omega 9 fattyacid s, mono and polyunsaturated Oleic acid sup sup 18 1 n 9 cis 9 octadecenoic ... C C C C class wikitable Common name Lipid name Chemical name align center Conjugated fattyacid s ... Essential fattyacid interactions for detail. See also Fattyacid Essential fattyacid Unsaturated fat ...Polyunsaturated fatty acids 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 Cis ..., James year 1997 title The divinylmethane pattern in fatty acids location Salt Lake City, UT publisher ... 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 Nomenclature Omega 3 class wikitable Common name Lipid name Chemical name align center Omega 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 ... more details
mergeto Essential fattyacid discuss Talk Essential fattyacid deficiency Propose to merge with Essential Fatty Acids date January 2011 Essential fattyacid deficiency results in a dermatitis similar to that seen in zinc deficiency zinc or biotin deficiency . ref name Andrews James, William Berger, Timothy Elston, Dirk 2005 . Andrews Diseases of the Skin Clinical Dermatology . 10th ed. . Saunders. ISBN 0 7216 2921 0. ref rp 485 See also Skin lesion References Reflist Dermatology stub Category Nutritional deficiencies ... more details
acid must be obtained from food. Synthesis of the longer n 3 fatty acids from linolenic acid within ...About an explanation of n and numerical nomenclature such as n 3 or 18 3 Fattyacid Nomenclature Technical ... acids are members of a series of essential unsaturated fat unsaturated fattyacid s that have in common a final carbon carbon double bond Bond order double bond in the essential fattyacid Nomenclature and terminology n 3 position that is, the third bond from the methyl end of the fattyacid. Nutritionally important n 3 fatty acids include alpha Linolenic acid linolenic acid ALA , eicosapentaenoic ... synthesize n 3 fatty acids de novo synthesis de novo , but it has a limited ability to form the long ... carbon n 3 fattyacid ALA. Chemistry Image ALAnumbering.svg 360px right thumb Chemical structure of alpha linolenic acid ALA , an essential n 3 fattyacid, 18 3 9c,12c,15c, which means a chain of 18 ... needed date May 2010 n 3 fatty acids which are important in human nutrition are linolenic acid 18 ... title Fattyacid composition of the plasma lipids in Greenland Eskimos journal Am J Clin Nutr volume ... of DHA omega 3 and permits the following biological role claim for DHA DHA, an omega 3 fattyacid, supports ... with the n 6 fatty acids see Essential fattyacid interactions for detail. A 1992 ... found that omega 6 fattyacid n 6 fatty acids such as gamma linolenic acid linolenic acid and arachidonic ... with synthesis from fatty acids and ending with metabolism by enzymes. However, if the rate of synthesis ... name Lands1992 When administered as the ethyl ester, the omega 3 fattyacid EPA appears to form potent ... M. Watkins, Jerrold M. Olefsky. September 2010 GPR120 Is an Omega 3 FattyAcid Receptor Mediating ... linolenic acid to longer chain polyunsaturated fatty acids in human adults. journal Reprod. Nutr. Dev ... Main Essential fattyacid interactions Clinical studies ref name Lands1992 ref name Okuyama2001 Cite ..., R.H. title Addition of omega 3 fattyacid to maintenance medication treatment for recurrent unipolar ... more details
the main articles at Essential fattyacid and Eicosanoid . The actions of the Omega 3 fattyacid &omega 3 Omega 3 and Omega 6 fattyacid &omega 6 Omega 6 essential fatty acids EFAs are best characterized by their interactions they cannot be understood separately. Arachidonic acid AA is a 20 carbon 6 conditionally essential fattyacid. ref name Cunnane cite journal author Cunnane SC title Problems with essential fatty acids time for a new paradigm? journal Progress in Lipid Research volume 42 ... dietary linoleic acid another essential fattyacid, 18 2 6 , which comes both from vegetable oil s and animal fat s. In the inflammatory response, two other groups of dietary essential fatty acids ... contain phospholipid fat . Each phospholipid molecule contains two fattyacid s. Some of these fatty ... br Essential FattyAcid rowspan 2 Abbr rowspan 2 Formula br font size 2 carbons double bonds font ... this fat, releasing AA as a Fattyacid free fattyacid . AA can then be oxygenated and then further ... Image EFA to Eicosanoids.svg 480px right thumb Figure 2 Essential fattyacid production and metabolism ... Brain fattyacid levels linked to depression year 25 May 2005 accessdate February 10, 2006 url http ... emulsions enriched with gamma linolenic acid on plasma n 6 fatty acids and prostaglandin biosynthesis ... with gamma linolenic acid alters fattyacid content and eicosanoid production in healthy ... cell membranes as a free fattyacid. During its short lifespan, free AA may affect the activity ... for an alternative, see Docosahexaenoic acid Metabolic synthesis Sprecher s shunt . 5 LO acts at the fifth ... acid HPETE , then to the first leuokotriene, LTA. See also Essential fattyacid Omega 3 fattyacid Omega 6 fattyacid Eicosanoid Docosanoid References reflist 2 DEFAULTSORT Essential FattyAcid ... of the arachidonic acid cascade &ndash more than twenty different signals biology signalling ... Arachidonic Acid url http www.acnp.org g4 GN401000059 Default.htm year 2000 accessdate 2006 03 03 work ... 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 277.85 ICDO OMIM MedlinePlus eMedicineSubj eMedicineTopic MeshID A fattyacid metabolism disorder is a defect in one of the enzymes involved in fattyacid metabolism . They are sometimes classified with the lipid metabolism disorder s, ref name urlLipid Metabolism Hereditary Metabolic Disorders Merck Manual Home Edition cite web url http www.merck.com mmhe sec23 ch282 ch282d.html title Lipid Metabolism Hereditary Metabolic Disorders Merck Manual Home Edition work accessdate 2009 03 11 ref but in other contexts they are considered a distinct category. 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 on maternal health and neonatal outcome impact of expanded newborn screening on their diagnosis and management journal Pediatr. Res. volume 57 issue 5 Pt 2 pages 78R 86R year 2005 month May pmid 15817498 doi 10.1203 01.PDR.0000159631.63843.3E url http meta.wkhealth.com pt pt core template journal lwwgateway media landingpage.htm?issn 0031 3998&volume 57&issue ... al title A fetal fattyacid oxidation disorder as a cause of liver disease in pregnant women journal ... ref name urlFatty Acid and Glycerol Metabolism Disorders Inherited Disorders of Metabolism Merck Manual Professional cite web url http www.merck.com mmpe sec19 ch296 ch296e.html title FattyAcid ... fattyacid beta oxidation and effects of LCHAD deficiency Carnitine transport The fatty acids ... mitochondria References reflist 2 Fattyacid metabolism disorders Category Inborn errors of metabolism Category Autosomal recessive disorders Category Metabolism Category Fatty acids Category Nutrition ... more details
Unreferenced stub auto yes date December 2009 A f atty a cid m ethyl e ster FAME can be created by an alkali catalyzed reaction between fat s or fatty acid s and methanol . The molecules in biodiesel are primarily FAMEs, usually obtained from vegetable oil s by transesterification . Image Transesterification FAME.svg center 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. DEFAULTSORT Fatty Acid Methyl Ester Category Fatty acids Category Biodiesel Category Carboxylate esters Biochem stub cs Metylester epkov ho oleje de Fetts uremethylester ko pl FAME zh ... 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 in many vegetable oil s. n 6 fatty acids popularly referred to as 6 fatty acids or omega 6 fatty 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 .... Competitive interactions with the omega 3 fattyacid n 3 fatty acids affect the relative ... 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 s and other physiologically active ... n 6 fatty acids, relative to certain Omega 3 fattyacid n 3 Omega 3 fatty acids , may increase the probability ... 3 Essential FattyAcid Ratio The Scientific Evidence pages 1 174 year 2003 month September publisher ... first Timothy D. title Dietary omega 3 polyunsaturated fattyacid supplementation and airway hyperresponsiveness ..., Michael Kleppinger, Kent M. title Reduced asthma symptoms with n 3 fattyacid ingestion are related ... brain arachidonic acid signaling lessons learned about the regulation of brain fattyacid metabolism ... to the n 6 fat issue is that the dietary requirement for linoleic acid the key n 6 fattyacid ... O. biennis produces an oil containing a high content of linolenic acid , a type of n 6 fattyacid ... See also Essential fattyacid interactions Essential nutrients Linolenic acid Linolenic acid Omega 3 fattyacid n 3 fattyacid Omega 9 fattyacid n 9 fattyacid Wheat germ oil Notes & references ... title Brain fattyacid levels linked to depression url http www.news medical.net ?id 10398 work News ... BC Alive Books 1993. Lipids DEFAULTSORT Omega 6 FattyAcid Category Fatty acids Category Essential ... 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 Family members Members of this family include class wikitable sortable Protein name Gene Tissue distribution Comment FABP1 FABP 1 gene FABP1 liver FABP2 FABP 2 gene FABP2 intestinal FABP3 FABP 3 gene FABP3 muscle and heart mammary derived growth inhibitor adipocyte protein 2 FABP 4 gene FABP4 adipocyte FABP5 FABP 5 gene FABP5 adipocyte psoriasis associated ... Reflist External links MeshName FattyAcid Binding Proteins Carrier proteins DEFAULTSORT FattyAcid Binding Protein Category Water soluble transporters protein stub ru , ... 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
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
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
The Strecker amino acidsynthesis , devised by Adolph Strecker , is a series of chemical reaction s that synthesize an amino acid from an aldehyde or ketone . ref cite journal author Adolph Strecker Strecker, A. title Ueber die k nstliche Bildung der Milchs ure und einen neuen, dem Glycocoll homologen K rper journal Liebigs Annalen Annalen der Chemie und Pharmazie year 1850 volume 75 issue 1 doi 10.1002 jlac.18500750103 pages 27 45 ref ref cite journal author Strecker, A. title Ueber einen neuen aus Aldehyd Ammoniak und Blaus ure entstehenden K rper p journal Liebigs Annalen Annalen der Chemie und Pharmazie year 1854 volume 91 issue 3 doi 10.1002 jlac.18540910309 pages 349 351 ref ref Shibasaki, M. Kanai, M. Mita, K. Org. React. 2008 , 70 , 1. doi http dx.doi.org 10.1002 0471264180.or070.01 10.1002 0471264180.or070.01 ref The aldehyde is condensation condensed with ammonium chloride in the presence of potassium cyanide to form an aminonitrile, which is subsequently hydrolyzed to give the desired amino acid. ref Kendall, E. C. McKenzie, B. F. Organic Syntheses , Coll. Vol. 1, p.21 1941 ... prep.asp?prep cv2p0029 Article ref Image Strecker Amino AcidSynthesis Scheme.png 400px center The Strecker amino acidsynthesis While usage of ammonium salts gives unsubstituted amino acids, primary ... synthesis of Adolph Strecker from 1850 gives racemic amino nitriles, but recently several ... synthesis part I valign top Image StreckerStepII.png 400px Strecker synthesis part I Strecker synthesis part I Strecker synthesis part II In stage two a proton activates aminonitrile 2.1 for nucleophilic ... to final product 2.7 . Scope An example of present day use of the Strecker synthesis is a multikilogram scale synthesis of a L valine derivative starting from 3 methyl 2 butanone ref A Concise Synthesis ... resolved by application of L tartaric acid . The amino acid is isolated as its salt with dicyclohexylamine . ref Image StreckerApplication.png 400px Strecker synthesis application Kuethe 2007 References ... more details
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