Exact Mass: 543.3325
Exact Mass Matches: 543.3325
Found 35 metabolites which its exact mass value is equals to given mass value 543.3325,
within given mass tolerance error 0.001 dalton. Try search metabolite list with more accurate mass tolerance error
0.0002 dalton.
LysoPC(20:4(5Z,8Z,11Z,14Z)/0:0)
LysoPC(20:4(5Z,8Z,11Z,14Z)) is a lysophospholipid (LyP). It is a monoglycerophospholipid in which a phosphorylcholine moiety occupies a glycerol substitution site. Lysophosphatidylcholines can have different combinations of fatty acids of varying lengths and saturation attached at the C-1 (sn-1) position. Fatty acids containing 16, 18 and 20 carbons are the most common. LysoPC(20:4(5Z,8Z,11Z,14Z)), in particular, consists of one chain of arachidonic acid at the C-1 position. The arachidonic acid moiety is derived from animal fats and eggs. Lysophosphatidylcholine is found in small amounts in most tissues. It is formed by hydrolysis of phosphatidylcholine by the enzyme phospholipase A2, as part of the de-acylation/re-acylation cycle that controls its overall molecular species composition. It can also be formed inadvertently during extraction of lipids from tissues if the phospholipase is activated by careless handling. In blood plasma significant amounts of lysophosphatidylcholine are formed by a specific enzyme system, lecithin:cholesterol acyltransferase (LCAT), which is secreted from the liver. The enzyme catalyzes the transfer of the fatty acids of position sn-2 of phosphatidylcholine to the free cholesterol in plasma, with formation of cholesterol esters and lysophosphatidylcholine. Lysophospholipids have a role in lipid signaling by acting on lysophospholipid receptors (LPL-R). LPL-Rs are members of the G protein-coupled receptor family of integral membrane proteins. [HMDB] LysoPC(20:4(5Z,8Z,11Z,14Z)) is a lysophospholipid (LyP). It is a monoglycerophospholipid in which a phosphorylcholine moiety occupies a glycerol substitution site. Lysophosphatidylcholines can have different combinations of fatty acids of varying lengths and saturation attached at the C-1 (sn-1) position. Fatty acids containing 16, 18 and 20 carbons are the most common. LysoPC(20:4(5Z,8Z,11Z,14Z)), in particular, consists of one chain of arachidonic acid at the C-1 position. The arachidonic acid moiety is derived from animal fats and eggs. Lysophosphatidylcholine is found in small amounts in most tissues. It is formed by hydrolysis of phosphatidylcholine by the enzyme phospholipase A2, as part of the de-acylation/re-acylation cycle that controls its overall molecular species composition. It can also be formed inadvertently during extraction of lipids from tissues if the phospholipase is activated by careless handling. In blood plasma significant amounts of lysophosphatidylcholine are formed by a specific enzyme system, lecithin:cholesterol acyltransferase (LCAT), which is secreted from the liver. The enzyme catalyzes the transfer of the fatty acids of position sn-2 of phosphatidylcholine to the free cholesterol in plasma, with formation of cholesterol esters and lysophosphatidylcholine. Lysophospholipids have a role in lipid signaling by acting on lysophospholipid receptors (LPL-R). LPL-Rs are members of the G protein-coupled receptor family of integral membrane proteins.
LysoPC(20:4(8Z,11Z,14Z,17Z)/0:0)
LysoPC(20:4(8Z,11Z,14Z,17Z)) is a lysophospholipid (LyP). It is a monoglycerophospholipid in which a phosphorylcholine moiety occupies a glycerol substitution site. Lysophosphatidylcholines can have different combinations of fatty acids of varying lengths and saturation attached at the C-1 (sn-1) position. Fatty acids containing 16, 18 and 20 carbons are the most common. LysoPC(20:4(8Z,11Z,14Z,17Z)), in particular, consists of one chain of eicsoatetraenoic acid at the C-1 position. The eicsoatetraenoic acid moiety is derived from fish oils. Lysophosphatidylcholine is found in small amounts in most tissues. It is formed by hydrolysis of phosphatidylcholine by the enzyme phospholipase A2, as part of the de-acylation/re-acylation cycle that controls its overall molecular species composition. It can also be formed inadvertently during extraction of lipids from tissues if the phospholipase is activated by careless handling. In blood plasma significant amounts of lysophosphatidylcholine are formed by a specific enzyme system, lecithin:cholesterol acyltransferase (LCAT), which is secreted from the liver. The enzyme catalyzes the transfer of the fatty acids of position sn-2 of phosphatidylcholine to the free cholesterol in plasma, with formation of cholesterol esters and lysophosphatidylcholine. Lysophospholipids have a role in lipid signaling by acting on lysophospholipid receptors (LPL-R). LPL-Rs are members of the G protein-coupled receptor family of integral membrane proteins. [HMDB] LysoPC(20:4(8Z,11Z,14Z,17Z)) is a lysophospholipid (LyP). It is a monoglycerophospholipid in which a phosphorylcholine moiety occupies a glycerol substitution site. Lysophosphatidylcholines can have different combinations of fatty acids of varying lengths and saturation attached at the C-1 (sn-1) position. Fatty acids containing 16, 18 and 20 carbons are the most common. LysoPC(20:4(8Z,11Z,14Z,17Z)), in particular, consists of one chain of eicsoatetraenoic acid at the C-1 position. The eicsoatetraenoic acid moiety is derived from fish oils. Lysophosphatidylcholine is found in small amounts in most tissues. It is formed by hydrolysis of phosphatidylcholine by the enzyme phospholipase A2, as part of the de-acylation/re-acylation cycle that controls its overall molecular species composition. It can also be formed inadvertently during extraction of lipids from tissues if the phospholipase is activated by careless handling. In blood plasma significant amounts of lysophosphatidylcholine are formed by a specific enzyme system, lecithin:cholesterol acyltransferase (LCAT), which is secreted from the liver. The enzyme catalyzes the transfer of the fatty acids of position sn-2 of phosphatidylcholine to the free cholesterol in plasma, with formation of cholesterol esters and lysophosphatidylcholine. Lysophospholipids have a role in lipid signaling by acting on lysophospholipid receptors (LPL-R). LPL-Rs are members of the G protein-coupled receptor family of integral membrane proteins.
LysoPC(0:0/20:4(5Z,8Z,11Z,14Z))
LysoPC(0:0/20:4(5Z,8Z,11Z,14Z)) is a lysophosphatidylcholine, which is a lysophospholipid. The term lysophospholipid (LPL) refers to any phospholipid that is missing one of its two O-acyl chains. Thus, LPLs have a free alcohol in either the sn-1 or sn-2 position. The prefix lyso- comes from the fact that lysophospholipids were originally found to be hemolytic however it is now used to refer generally to phospholipids missing an acyl chain. LPLs are usually the result of phospholipase A-type enzymatic activity on regular phospholipids such as phosphatidylcholine or phosphatidic acid, although they can also be generated by the acylation of glycerophospholipids or the phosphorylation of monoacylglycerols. Lysophosphatidylcholine is found in small amounts in most tissues. It is formed by hydrolysis of phosphatidylcholine by the enzyme phospholipase A2 as part of the de-acylation/re-acylation cycle that controls its overall molecular species composition. It can also be formed inadvertently during extraction of lipids from tissues if the phospholipase is activated by careless handling. There is also a phospholipase A1, which is able to cleave the sn-1 ester bond. Lysophosphatidylcholine has pro-inflammatory properties in vitro and it is known to be a pathological component of oxidized lipoproteins (LDL) in plasma and of atherosclerotic lesions. Recently, it has been found to have some functions in cell signalling, and specific receptors (coupled to G proteins) have been identified. It activates the specific phospholipase C that releases diacylglycerols and inositol triphosphate with resultant increases in intracellular Ca2+ and activation of protein kinase C. It also activates the mitogen-activated protein kinase in certain cell types. Lysophosphatidylcholines can have different combinations of fatty acids of varying lengths and saturation attached at the C-1 (sn-1) or C-2 (sn-2) position. LysoPC(0:0/20:4(5Z,8Z,11Z,14Z)), in particular, consists of one chain of arachidonic acid at the C-2 position.
PC(20:4/0:0)
Arachidonyl lysolecithin
[2-hydroxy-3-[(8Z,11Z,14Z,17Z)-icosa-8,11,14,17-tetraenoyl]oxypropyl] 2-(trimethylazaniumyl)ethyl phosphate
[2-butanoyloxy-3-[(4Z,7Z,10Z,13Z)-hexadeca-4,7,10,13-tetraenoxy]propyl] 2-(trimethylazaniumyl)ethyl phosphate
[1-[2-aminoethoxy(hydroxy)phosphoryl]oxy-3-[(4Z,7Z,10Z,13Z)-hexadeca-4,7,10,13-tetraenoxy]propan-2-yl] heptanoate
[2-acetyloxy-3-[(6Z,9Z,12Z,15Z)-octadeca-6,9,12,15-tetraenoxy]propyl] 2-(trimethylazaniumyl)ethyl phosphate
[1-[2-aminoethoxy(hydroxy)phosphoryl]oxy-3-[(6Z,9Z,12Z,15Z)-octadeca-6,9,12,15-tetraenoxy]propan-2-yl] pentanoate
[1-[2-aminoethoxy(hydroxy)phosphoryl]oxy-3-[(8Z,11Z,14Z,17Z)-icosa-8,11,14,17-tetraenoxy]propan-2-yl] propanoate
[(2R)-2-hydroxy-3-[(7E,10E,13E,16E)-icosa-7,10,13,16-tetraenoyl]oxypropyl] 2-(trimethylazaniumyl)ethyl phosphate
[(2R)-2-hydroxy-3-[(5E,8E,11E,14E)-icosa-5,8,11,14-tetraenoyl]oxypropyl] 2-(trimethylazaniumyl)ethyl phosphate
1-Arachidonoyl-sn-glycero-3-phosphocholine
A lysophosphatidylcholine 20:4 in which the acyl group at position 1 is (5Z,8Z,11Z,14Z)-icosatetraenoyl (arachidonoyl) and the hydroxy group at position 2 is unsubstituted.
lysophosphatidylcholine 20:4
An acyl-sn-glycero-3-phosphocholine in which the remaining acyl group (position not specified) contains 20 carbons with 4 double bonds.
lysophosphatidylcholine(0:0/20:4)
A 2-acyl-sn-glycero-3-phosphocholine in which the 2-acyl group contains 20 carbons and 4 double bonds.
Lysophosphatidylcholine(20:4/0:0)
A 1-acyl-sn-glycero-3-phosphocholine in which the 1-acyl group contains 20 carbons and 4 double bonds.
1-[(8Z,11Z,14Z,17Z)-icosatetraenoyl]-sn-glycero-3-phosphocholine
A lysophosphatidylcholine 20:4 in which the the acyl group at position 1 is specified as (8Z,11Z,14Z,17Z)-icosatetraenoyl.
2-Arachidonoyl-sn-glycero-3-phosphocholine
A lysophosphatidylcholine 20:4 in which the acyl group is specified as arachidonoyl and is located at position 2.
MePC(19:4)
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