Exact Mass: 994.5851
Exact Mass Matches: 994.5851
Found 119 metabolites which its exact mass value is equals to given mass value 994.5851,
within given mass tolerance error 0.05 dalton. Try search metabolite list with more accurate mass tolerance error
0.01 dalton.
Microcystin LR
CONFIDENCE standard compound; UCHEM_ID 2992; NaToxAq - Natural Toxins and Drinking Water Quality - From Source to Tap (https://natoxaq.ku.dk) D009676 - Noxae > D002273 - Carcinogens > D052998 - Microcystins D009676 - Noxae > D011042 - Poisons > D008387 - Marine Toxins CONFIDENCE standard compound; EAWAG_UCHEM_ID 2992 D004791 - Enzyme Inhibitors
Cyanoginosin
Nelipepimut-S
Microcystin-LR
PGP(a-25:0/20:3(6,8,11)-OH(5))
PGP(a-25:0/20:3(6,8,11)-OH(5)) is an oxidized phosphoglycerophosphate (PGP). Oxidized phosphoglycerophosphates are glycerophospholipids in which a phosphoglycerol moiety occupies a glycerol substitution site and at least one of the fatty acyl chains has undergone oxidation. As all oxidized lipids, oxidized phosphoglycerophosphates belong to a group of biomolecules that have a role as signaling molecules. The biosynthesis of oxidized lipids is mediated by several enzymatic families, including cyclooxygenases (COX), lipoxygenases (LOX) and cytochrome P450s (CYP). Non-enzymatically oxidized lipids are produced by uncontrolled oxidation through free radicals and are considered harmful to human health (PMID: 33329396). As is the case with diacylglycerols, phosphoglycerophosphates can have many different combinations of fatty acids of varying lengths, saturation and degrees of oxidation attached at the C-1 and C-2 positions. PGP(a-25:0/20:3(6,8,11)-OH(5)), in particular, consists of one chain of one 22-methyltetracosanoyl at the C-1 position and one chain of 5-hydroxyeicosatetrienoyl at the C-2 position. Phospholipids are ubiquitous in nature and are key components of the lipid bilayer of cells, as well as being involved in metabolism and signaling. Similarly to what occurs with phospholipids, the fatty acid distribution at the C-1 and C-2 positions of glycerol within oxidized phospholipids is continually in flux, owing to phospholipid degradation and the continuous phospholipid remodeling that occurs while these molecules are in membranes. Oxidized PGPs can be synthesized via three different routes. In one route, the oxidized PGP is synthetized de novo following the same mechanisms as for PGPs but incorporating oxidized acyl chains (PMID: 33329396). An alternative is the transacylation of one of the non-oxidized acyl chains with an oxidized acylCoA (PMID: 33329396). The third pathway results from the oxidation of the acyl chain while still attached to the PGP backbone, mainely through the action of LOX (PMID: 33329396).
PGP(20:3(6,8,11)-OH(5)/a-25:0)
PGP(20:3(6,8,11)-OH(5)/a-25:0) is an oxidized phosphoglycerophosphate (PGP). Oxidized phosphoglycerophosphates are glycerophospholipids in which a phosphoglycerol moiety occupies a glycerol substitution site and at least one of the fatty acyl chains has undergone oxidation. As all oxidized lipids, oxidized phosphoglycerophosphates belong to a group of biomolecules that have a role as signaling molecules. The biosynthesis of oxidized lipids is mediated by several enzymatic families, including cyclooxygenases (COX), lipoxygenases (LOX) and cytochrome P450s (CYP). Non-enzymatically oxidized lipids are produced by uncontrolled oxidation through free radicals and are considered harmful to human health (PMID: 33329396). As is the case with diacylglycerols, phosphoglycerophosphates can have many different combinations of fatty acids of varying lengths, saturation and degrees of oxidation attached at the C-1 and C-2 positions. PGP(20:3(6,8,11)-OH(5)/a-25:0), in particular, consists of one chain of one 5-hydroxyeicosatetrienoyl at the C-1 position and one chain of 22-methyltetracosanoyl at the C-2 position. Phospholipids are ubiquitous in nature and are key components of the lipid bilayer of cells, as well as being involved in metabolism and signaling. Similarly to what occurs with phospholipids, the fatty acid distribution at the C-1 and C-2 positions of glycerol within oxidized phospholipids is continually in flux, owing to phospholipid degradation and the continuous phospholipid remodeling that occurs while these molecules are in membranes. Oxidized PGPs can be synthesized via three different routes. In one route, the oxidized PGP is synthetized de novo following the same mechanisms as for PGPs but incorporating oxidized acyl chains (PMID: 33329396). An alternative is the transacylation of one of the non-oxidized acyl chains with an oxidized acylCoA (PMID: 33329396). The third pathway results from the oxidation of the acyl chain while still attached to the PGP backbone, mainely through the action of LOX (PMID: 33329396).
PGP(i-24:0/20:4(6Z,8E,10E,14Z)-2OH(5S,12R))
PGP(i-24:0/20:4(6Z,8E,10E,14Z)-2OH(5S,12R)) is an oxidized phosphoglycerophosphate (PGP). Oxidized phosphoglycerophosphates are glycerophospholipids in which a phosphoglycerol moiety occupies a glycerol substitution site and at least one of the fatty acyl chains has undergone oxidation. As all oxidized lipids, oxidized phosphoglycerophosphates belong to a group of biomolecules that have a role as signaling molecules. The biosynthesis of oxidized lipids is mediated by several enzymatic families, including cyclooxygenases (COX), lipoxygenases (LOX) and cytochrome P450s (CYP). Non-enzymatically oxidized lipids are produced by uncontrolled oxidation through free radicals and are considered harmful to human health (PMID: 33329396). As is the case with diacylglycerols, phosphoglycerophosphates can have many different combinations of fatty acids of varying lengths, saturation and degrees of oxidation attached at the C-1 and C-2 positions. PGP(i-24:0/20:4(6Z,8E,10E,14Z)-2OH(5S,12R)), in particular, consists of one chain of one 22-methyltricosanoyl at the C-1 position and one chain of Leukotriene B4 at the C-2 position. Phospholipids are ubiquitous in nature and are key components of the lipid bilayer of cells, as well as being involved in metabolism and signaling. Similarly to what occurs with phospholipids, the fatty acid distribution at the C-1 and C-2 positions of glycerol within oxidized phospholipids is continually in flux, owing to phospholipid degradation and the continuous phospholipid remodeling that occurs while these molecules are in membranes. Oxidized PGPs can be synthesized via three different routes. In one route, the oxidized PGP is synthetized de novo following the same mechanisms as for PGPs but incorporating oxidized acyl chains (PMID: 33329396). An alternative is the transacylation of one of the non-oxidized acyl chains with an oxidized acylCoA (PMID: 33329396). The third pathway results from the oxidation of the acyl chain while still attached to the PGP backbone, mainely through the action of LOX (PMID: 33329396).
PGP(20:4(6Z,8E,10E,14Z)-2OH(5S,12R)/i-24:0)
PGP(20:4(6Z,8E,10E,14Z)-2OH(5S,12R)/i-24:0) is an oxidized phosphoglycerophosphate (PGP). Oxidized phosphoglycerophosphates are glycerophospholipids in which a phosphoglycerol moiety occupies a glycerol substitution site and at least one of the fatty acyl chains has undergone oxidation. As all oxidized lipids, oxidized phosphoglycerophosphates belong to a group of biomolecules that have a role as signaling molecules. The biosynthesis of oxidized lipids is mediated by several enzymatic families, including cyclooxygenases (COX), lipoxygenases (LOX) and cytochrome P450s (CYP). Non-enzymatically oxidized lipids are produced by uncontrolled oxidation through free radicals and are considered harmful to human health (PMID: 33329396). As is the case with diacylglycerols, phosphoglycerophosphates can have many different combinations of fatty acids of varying lengths, saturation and degrees of oxidation attached at the C-1 and C-2 positions. PGP(20:4(6Z,8E,10E,14Z)-2OH(5S,12R)/i-24:0), in particular, consists of one chain of one Leukotriene B4 at the C-1 position and one chain of 22-methyltricosanoyl at the C-2 position. Phospholipids are ubiquitous in nature and are key components of the lipid bilayer of cells, as well as being involved in metabolism and signaling. Similarly to what occurs with phospholipids, the fatty acid distribution at the C-1 and C-2 positions of glycerol within oxidized phospholipids is continually in flux, owing to phospholipid degradation and the continuous phospholipid remodeling that occurs while these molecules are in membranes. Oxidized PGPs can be synthesized via three different routes. In one route, the oxidized PGP is synthetized de novo following the same mechanisms as for PGPs but incorporating oxidized acyl chains (PMID: 33329396). An alternative is the transacylation of one of the non-oxidized acyl chains with an oxidized acylCoA (PMID: 33329396). The third pathway results from the oxidation of the acyl chain while still attached to the PGP backbone, mainely through the action of LOX (PMID: 33329396).
PGP(i-24:0/20:4(6E,8Z,11Z,13E)-2OH(5S,15S))
PGP(i-24:0/20:4(6E,8Z,11Z,13E)-2OH(5S,15S)) is an oxidized phosphoglycerophosphate (PGP). Oxidized phosphoglycerophosphates are glycerophospholipids in which a phosphoglycerol moiety occupies a glycerol substitution site and at least one of the fatty acyl chains has undergone oxidation. As all oxidized lipids, oxidized phosphoglycerophosphates belong to a group of biomolecules that have a role as signaling molecules. The biosynthesis of oxidized lipids is mediated by several enzymatic families, including cyclooxygenases (COX), lipoxygenases (LOX) and cytochrome P450s (CYP). Non-enzymatically oxidized lipids are produced by uncontrolled oxidation through free radicals and are considered harmful to human health (PMID: 33329396). As is the case with diacylglycerols, phosphoglycerophosphates can have many different combinations of fatty acids of varying lengths, saturation and degrees of oxidation attached at the C-1 and C-2 positions. PGP(i-24:0/20:4(6E,8Z,11Z,13E)-2OH(5S,15S)), in particular, consists of one chain of one 22-methyltricosanoyl at the C-1 position and one chain of 5(S),15(S)-Dihydroxyeicosatetraenoyl at the C-2 position. Phospholipids are ubiquitous in nature and are key components of the lipid bilayer of cells, as well as being involved in metabolism and signaling. Similarly to what occurs with phospholipids, the fatty acid distribution at the C-1 and C-2 positions of glycerol within oxidized phospholipids is continually in flux, owing to phospholipid degradation and the continuous phospholipid remodeling that occurs while these molecules are in membranes. Oxidized PGPs can be synthesized via three different routes. In one route, the oxidized PGP is synthetized de novo following the same mechanisms as for PGPs but incorporating oxidized acyl chains (PMID: 33329396). An alternative is the transacylation of one of the non-oxidized acyl chains with an oxidized acylCoA (PMID: 33329396). The third pathway results from the oxidation of the acyl chain while still attached to the PGP backbone, mainely through the action of LOX (PMID: 33329396).
PGP(20:4(6E,8Z,11Z,13E)-2OH(5S,15S)/i-24:0)
PGP(20:4(6E,8Z,11Z,13E)-2OH(5S,15S)/i-24:0) is an oxidized phosphoglycerophosphate (PGP). Oxidized phosphoglycerophosphates are glycerophospholipids in which a phosphoglycerol moiety occupies a glycerol substitution site and at least one of the fatty acyl chains has undergone oxidation. As all oxidized lipids, oxidized phosphoglycerophosphates belong to a group of biomolecules that have a role as signaling molecules. The biosynthesis of oxidized lipids is mediated by several enzymatic families, including cyclooxygenases (COX), lipoxygenases (LOX) and cytochrome P450s (CYP). Non-enzymatically oxidized lipids are produced by uncontrolled oxidation through free radicals and are considered harmful to human health (PMID: 33329396). As is the case with diacylglycerols, phosphoglycerophosphates can have many different combinations of fatty acids of varying lengths, saturation and degrees of oxidation attached at the C-1 and C-2 positions. PGP(20:4(6E,8Z,11Z,13E)-2OH(5S,15S)/i-24:0), in particular, consists of one chain of one 5(S),15(S)-Dihydroxyeicosatetraenoyl at the C-1 position and one chain of 22-methyltricosanoyl at the C-2 position. Phospholipids are ubiquitous in nature and are key components of the lipid bilayer of cells, as well as being involved in metabolism and signaling. Similarly to what occurs with phospholipids, the fatty acid distribution at the C-1 and C-2 positions of glycerol within oxidized phospholipids is continually in flux, owing to phospholipid degradation and the continuous phospholipid remodeling that occurs while these molecules are in membranes. Oxidized PGPs can be synthesized via three different routes. In one route, the oxidized PGP is synthetized de novo following the same mechanisms as for PGPs but incorporating oxidized acyl chains (PMID: 33329396). An alternative is the transacylation of one of the non-oxidized acyl chains with an oxidized acylCoA (PMID: 33329396). The third pathway results from the oxidation of the acyl chain while still attached to the PGP backbone, mainely through the action of LOX (PMID: 33329396).
PGP(i-24:0/20:4(8Z,11Z,14Z,17Z)-2OH(5S,6R))
PGP(i-24:0/20:4(8Z,11Z,14Z,17Z)-2OH(5S,6R)) is an oxidized phosphoglycerophosphate (PGP). Oxidized phosphoglycerophosphates are glycerophospholipids in which a phosphoglycerol moiety occupies a glycerol substitution site and at least one of the fatty acyl chains has undergone oxidation. As all oxidized lipids, oxidized phosphoglycerophosphates belong to a group of biomolecules that have a role as signaling molecules. The biosynthesis of oxidized lipids is mediated by several enzymatic families, including cyclooxygenases (COX), lipoxygenases (LOX) and cytochrome P450s (CYP). Non-enzymatically oxidized lipids are produced by uncontrolled oxidation through free radicals and are considered harmful to human health (PMID: 33329396). As is the case with diacylglycerols, phosphoglycerophosphates can have many different combinations of fatty acids of varying lengths, saturation and degrees of oxidation attached at the C-1 and C-2 positions. PGP(i-24:0/20:4(8Z,11Z,14Z,17Z)-2OH(5S,6R)), in particular, consists of one chain of one 22-methyltricosanoyl at the C-1 position and one chain of 5,6-Dihydroxyeicosatetraenoyl at the C-2 position. Phospholipids are ubiquitous in nature and are key components of the lipid bilayer of cells, as well as being involved in metabolism and signaling. Similarly to what occurs with phospholipids, the fatty acid distribution at the C-1 and C-2 positions of glycerol within oxidized phospholipids is continually in flux, owing to phospholipid degradation and the continuous phospholipid remodeling that occurs while these molecules are in membranes. Oxidized PGPs can be synthesized via three different routes. In one route, the oxidized PGP is synthetized de novo following the same mechanisms as for PGPs but incorporating oxidized acyl chains (PMID: 33329396). An alternative is the transacylation of one of the non-oxidized acyl chains with an oxidized acylCoA (PMID: 33329396). The third pathway results from the oxidation of the acyl chain while still attached to the PGP backbone, mainely through the action of LOX (PMID: 33329396).
PGP(20:4(8Z,11Z,14Z,17Z)-2OH(5S,6R)/i-24:0)
PGP(20:4(8Z,11Z,14Z,17Z)-2OH(5S,6R)/i-24:0) is an oxidized phosphoglycerophosphate (PGP). Oxidized phosphoglycerophosphates are glycerophospholipids in which a phosphoglycerol moiety occupies a glycerol substitution site and at least one of the fatty acyl chains has undergone oxidation. As all oxidized lipids, oxidized phosphoglycerophosphates belong to a group of biomolecules that have a role as signaling molecules. The biosynthesis of oxidized lipids is mediated by several enzymatic families, including cyclooxygenases (COX), lipoxygenases (LOX) and cytochrome P450s (CYP). Non-enzymatically oxidized lipids are produced by uncontrolled oxidation through free radicals and are considered harmful to human health (PMID: 33329396). As is the case with diacylglycerols, phosphoglycerophosphates can have many different combinations of fatty acids of varying lengths, saturation and degrees of oxidation attached at the C-1 and C-2 positions. PGP(20:4(8Z,11Z,14Z,17Z)-2OH(5S,6R)/i-24:0), in particular, consists of one chain of one 5,6-Dihydroxyeicosatetraenoyl at the C-1 position and one chain of 22-methyltricosanoyl at the C-2 position. Phospholipids are ubiquitous in nature and are key components of the lipid bilayer of cells, as well as being involved in metabolism and signaling. Similarly to what occurs with phospholipids, the fatty acid distribution at the C-1 and C-2 positions of glycerol within oxidized phospholipids is continually in flux, owing to phospholipid degradation and the continuous phospholipid remodeling that occurs while these molecules are in membranes. Oxidized PGPs can be synthesized via three different routes. In one route, the oxidized PGP is synthetized de novo following the same mechanisms as for PGPs but incorporating oxidized acyl chains (PMID: 33329396). An alternative is the transacylation of one of the non-oxidized acyl chains with an oxidized acylCoA (PMID: 33329396). The third pathway results from the oxidation of the acyl chain while still attached to the PGP backbone, mainely through the action of LOX (PMID: 33329396).
PI(22:2(13Z,16Z)/22:6(5Z,8E,10Z,13Z,15E,19Z)-2OH(7S, 17S))
PI(22:2(13Z,16Z)/22:6(5Z,8E,10Z,13Z,15E,19Z)-2OH(7S, 17S)) is an oxidized phosphatidylinositol (PI). Phosphatidylinositols are important lipids, both as a key membrane constituent and as a participant in essential metabolic processes, both directly and via a number of metabolites. Phosphatidylinositols are acidic (anionic) phospholipids that consist of a phosphatidic acid backbone, linked via the phosphate group to inositol (hexahydroxycyclohexane). Phosphatidylinositols can have many different combinations of fatty acids of varying lengths and saturation attached at the C-1 and C-2 positions. PI(22:2(13Z,16Z)/22:6(5Z,8E,10Z,13Z,15E,19Z)-2OH(7S, 17S)), in particular, consists of one chain of 13Z,16Z-docosadienoyl at the C-1 position and one chain of Resolvin D5 at the C-2 position. The inositol group that is part of every phosphatidylinositol lipid is covalently linked to the phosphate group that acts as a bridge to the lipid tail. In most organisms, the stereochemical form of this inositol is myo-D-inositol (with one axial hydroxyl in position 2 with the remainder equatorial), although other forms can be found in certain plant phosphatidylinositols. Phosphatidylinositol is especially abundant in brain tissue, where it can amount to 10\\% of the phospholipids, but it is present in all tissues and cell types. There is usually less of it than of phosphatidylcholine, phosphatidylethanolamine and phosphatidylserine. In animal tissues, phosphatidylinositol is the primary source of the arachidonic acid required for biosynthesis of eicosanoids, including prostaglandins, via the action of the enzyme phospholipase A2. Phosphatidylinositol can be phosphorylated by a number of different kinases that place the phosphate moiety on positions 4 and 5 of the inositol ring, although position 3 can also be phosphorylated by a specific kinase. Seven different isomers are known, but the most important in both quantitative and biological terms are phosphatidylinositol 4-phosphate and phosphatidylinositol 4,5-bisphosphate. Phosphatidylinositol and the phosphatidylinositol phosphates are the main source of diacylglycerols that serve as signaling molecules, via the action of phospholipase C enzymes. While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the glycerol backbone, the fatty acid distribution at the C-1 and C-2 positions of glycerol within phospholipids is continually in flux, owing to phospholipid degradation and the continuous phospholipid remodeling that occurs while these molecules are in membranes. PIs composed exclusively of non-phosphorylated inositol exhibit a net charge of -1 at physiological pH. Molecules with phosphorylated inositol (such as PIP, PIP2, PIP3, etc.) are termed polyphosphoinositides. The polyphosphoinositides are important intracellular transducers of signals emanating from the plasma membrane. The synthesis of PI involves CDP-activated 1,2-diacylglycerol condensation with myo-inositol.
PI(22:6(5Z,8E,10Z,13Z,15E,19Z)-2OH(7S, 17S)/22:2(13Z,16Z))
PI(22:6(5Z,8E,10Z,13Z,15E,19Z)-2OH(7S, 17S)/22:2(13Z,16Z)) is an oxidized phosphatidylinositol (PI). Phosphatidylinositols are important lipids, both as a key membrane constituent and as a participant in essential metabolic processes, both directly and via a number of metabolites. Phosphatidylinositols are acidic (anionic) phospholipids that consist of a phosphatidic acid backbone, linked via the phosphate group to inositol (hexahydroxycyclohexane). Phosphatidylinositols can have many different combinations of fatty acids of varying lengths and saturation attached at the C-1 and C-2 positions. PI(22:6(5Z,8E,10Z,13Z,15E,19Z)-2OH(7S, 17S)/22:2(13Z,16Z)), in particular, consists of one chain of Resolvin D5 at the C-1 position and one chain of 13Z,16Z-docosadienoyl at the C-2 position. The inositol group that is part of every phosphatidylinositol lipid is covalently linked to the phosphate group that acts as a bridge to the lipid tail. In most organisms, the stereochemical form of this inositol is myo-D-inositol (with one axial hydroxyl in position 2 with the remainder equatorial), although other forms can be found in certain plant phosphatidylinositols. Phosphatidylinositol is especially abundant in brain tissue, where it can amount to 10\\% of the phospholipids, but it is present in all tissues and cell types. There is usually less of it than of phosphatidylcholine, phosphatidylethanolamine and phosphatidylserine. In animal tissues, phosphatidylinositol is the primary source of the arachidonic acid required for biosynthesis of eicosanoids, including prostaglandins, via the action of the enzyme phospholipase A2. Phosphatidylinositol can be phosphorylated by a number of different kinases that place the phosphate moiety on positions 4 and 5 of the inositol ring, although position 3 can also be phosphorylated by a specific kinase. Seven different isomers are known, but the most important in both quantitative and biological terms are phosphatidylinositol 4-phosphate and phosphatidylinositol 4,5-bisphosphate. Phosphatidylinositol and the phosphatidylinositol phosphates are the main source of diacylglycerols that serve as signaling molecules, via the action of phospholipase C enzymes. While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the glycerol backbone, the fatty acid distribution at the C-1 and C-2 positions of glycerol within phospholipids is continually in flux, owing to phospholipid degradation and the continuous phospholipid remodeling that occurs while these molecules are in membranes. PIs composed exclusively of non-phosphorylated inositol exhibit a net charge of -1 at physiological pH. Molecules with phosphorylated inositol (such as PIP, PIP2, PIP3, etc.) are termed polyphosphoinositides. The polyphosphoinositides are important intracellular transducers of signals emanating from the plasma membrane. The synthesis of PI involves CDP-activated 1,2-diacylglycerol condensation with myo-inositol.
PI(22:2(13Z,16Z)/22:6(4Z,7Z,11E,13Z,15E,19Z)-2OH(10S,17))
PI(22:2(13Z,16Z)/22:6(4Z,7Z,11E,13Z,15E,19Z)-2OH(10S,17)) is an oxidized phosphatidylinositol (PI). Phosphatidylinositols are important lipids, both as a key membrane constituent and as a participant in essential metabolic processes, both directly and via a number of metabolites. Phosphatidylinositols are acidic (anionic) phospholipids that consist of a phosphatidic acid backbone, linked via the phosphate group to inositol (hexahydroxycyclohexane). Phosphatidylinositols can have many different combinations of fatty acids of varying lengths and saturation attached at the C-1 and C-2 positions. PI(22:2(13Z,16Z)/22:6(4Z,7Z,11E,13Z,15E,19Z)-2OH(10S,17)), in particular, consists of one chain of 13Z,16Z-docosadienoyl at the C-1 position and one chain of Protectin DX at the C-2 position. The inositol group that is part of every phosphatidylinositol lipid is covalently linked to the phosphate group that acts as a bridge to the lipid tail. In most organisms, the stereochemical form of this inositol is myo-D-inositol (with one axial hydroxyl in position 2 with the remainder equatorial), although other forms can be found in certain plant phosphatidylinositols. Phosphatidylinositol is especially abundant in brain tissue, where it can amount to 10\\% of the phospholipids, but it is present in all tissues and cell types. There is usually less of it than of phosphatidylcholine, phosphatidylethanolamine and phosphatidylserine. In animal tissues, phosphatidylinositol is the primary source of the arachidonic acid required for biosynthesis of eicosanoids, including prostaglandins, via the action of the enzyme phospholipase A2. Phosphatidylinositol can be phosphorylated by a number of different kinases that place the phosphate moiety on positions 4 and 5 of the inositol ring, although position 3 can also be phosphorylated by a specific kinase. Seven different isomers are known, but the most important in both quantitative and biological terms are phosphatidylinositol 4-phosphate and phosphatidylinositol 4,5-bisphosphate. Phosphatidylinositol and the phosphatidylinositol phosphates are the main source of diacylglycerols that serve as signaling molecules, via the action of phospholipase C enzymes. While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the glycerol backbone, the fatty acid distribution at the C-1 and C-2 positions of glycerol within phospholipids is continually in flux, owing to phospholipid degradation and the continuous phospholipid remodeling that occurs while these molecules are in membranes. PIs composed exclusively of non-phosphorylated inositol exhibit a net charge of -1 at physiological pH. Molecules with phosphorylated inositol (such as PIP, PIP2, PIP3, etc.) are termed polyphosphoinositides. The polyphosphoinositides are important intracellular transducers of signals emanating from the plasma membrane. The synthesis of PI involves CDP-activated 1,2-diacylglycerol condensation with myo-inositol.
PI(22:6(4Z,7Z,11E,13Z,15E,19Z)-2OH(10S,17)/22:2(13Z,16Z))
PI(22:6(4Z,7Z,11E,13Z,15E,19Z)-2OH(10S,17)/22:2(13Z,16Z)) is an oxidized phosphatidylinositol (PI). Phosphatidylinositols are important lipids, both as a key membrane constituent and as a participant in essential metabolic processes, both directly and via a number of metabolites. Phosphatidylinositols are acidic (anionic) phospholipids that consist of a phosphatidic acid backbone, linked via the phosphate group to inositol (hexahydroxycyclohexane). Phosphatidylinositols can have many different combinations of fatty acids of varying lengths and saturation attached at the C-1 and C-2 positions. PI(22:6(4Z,7Z,11E,13Z,15E,19Z)-2OH(10S,17)/22:2(13Z,16Z)), in particular, consists of one chain of Protectin DX at the C-1 position and one chain of 13Z,16Z-docosadienoyl at the C-2 position. The inositol group that is part of every phosphatidylinositol lipid is covalently linked to the phosphate group that acts as a bridge to the lipid tail. In most organisms, the stereochemical form of this inositol is myo-D-inositol (with one axial hydroxyl in position 2 with the remainder equatorial), although other forms can be found in certain plant phosphatidylinositols. Phosphatidylinositol is especially abundant in brain tissue, where it can amount to 10\\% of the phospholipids, but it is present in all tissues and cell types. There is usually less of it than of phosphatidylcholine, phosphatidylethanolamine and phosphatidylserine. In animal tissues, phosphatidylinositol is the primary source of the arachidonic acid required for biosynthesis of eicosanoids, including prostaglandins, via the action of the enzyme phospholipase A2. Phosphatidylinositol can be phosphorylated by a number of different kinases that place the phosphate moiety on positions 4 and 5 of the inositol ring, although position 3 can also be phosphorylated by a specific kinase. Seven different isomers are known, but the most important in both quantitative and biological terms are phosphatidylinositol 4-phosphate and phosphatidylinositol 4,5-bisphosphate. Phosphatidylinositol and the phosphatidylinositol phosphates are the main source of diacylglycerols that serve as signaling molecules, via the action of phospholipase C enzymes. While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the glycerol backbone, the fatty acid distribution at the C-1 and C-2 positions of glycerol within phospholipids is continually in flux, owing to phospholipid degradation and the continuous phospholipid remodeling that occurs while these molecules are in membranes. PIs composed exclusively of non-phosphorylated inositol exhibit a net charge of -1 at physiological pH. Molecules with phosphorylated inositol (such as PIP, PIP2, PIP3, etc.) are termed polyphosphoinositides. The polyphosphoinositides are important intracellular transducers of signals emanating from the plasma membrane. The synthesis of PI involves CDP-activated 1,2-diacylglycerol condensation with myo-inositol.
PS(22:4(7Z,10Z,13Z,16Z)/LTE4)
PS(22:4(7Z,10Z,13Z,16Z)/LTE4) is an oxidized phosphatidylserine (PS). Oxidized phosphatidylserines are glycerophospholipids in which a phosphorylserine moiety occupies a glycerol substitution site and at least one of the fatty acyl chains has undergone oxidation. As all oxidized lipids, oxidized phosphatidylserines belong to a group of biomolecules that have a role as signaling molecules. The biosynthesis of oxidized lipids is mediated by several enzymatic families, including cyclooxygenases (COX), lipoxygenases (LOX) and cytochrome P450s (CYP). Non-enzymatically oxidized lipids are produced by uncontrolled oxidation through free radicals and are considered harmful to human health (PMID: 33329396). As is the case with diacylglycerols, phosphatidylserines can have many different combinations of fatty acids of varying lengths, saturation and degrees of oxidation attached at the C-1 and C-2 positions. PS(22:4(7Z,10Z,13Z,16Z)/LTE4), in particular, consists of one chain of one 7Z,10Z,13Z,16Z-docosatetraenoyl at the C-1 position and one chain of Leukotriene E4 at the C-2 position. Phospholipids are ubiquitous in nature and are key components of the lipid bilayer of cells, as well as being involved in metabolism and signaling. Similarly to what occurs with phospholipids, the fatty acid distribution at the C-1 and C-2 positions of glycerol within oxidized phospholipids is continually in flux, owing to phospholipid degradation and the continuous phospholipid remodeling that occurs while these molecules are in membranes. Oxidized PSs can be synthesized via three different routes. In one route, the oxidized PS is synthetized de novo following the same mechanisms as for PSs but incorporating oxidized acyl chains (PMID: 33329396). An alternative is the transacylation of one of the non-oxidized acyl chains with an oxidized acylCoA (PMID: 33329396). The third pathway results from the oxidation of the acyl chain while still attached to the PS backbone, mainly through the action of LOX (PMID: 33329396).
PS(LTE4/22:4(7Z,10Z,13Z,16Z))
PS(LTE4/22:4(7Z,10Z,13Z,16Z)) is an oxidized phosphatidylserine (PS). Oxidized phosphatidylserines are glycerophospholipids in which a phosphorylserine moiety occupies a glycerol substitution site and at least one of the fatty acyl chains has undergone oxidation. As all oxidized lipids, oxidized phosphatidylserines belong to a group of biomolecules that have a role as signaling molecules. The biosynthesis of oxidized lipids is mediated by several enzymatic families, including cyclooxygenases (COX), lipoxygenases (LOX) and cytochrome P450s (CYP). Non-enzymatically oxidized lipids are produced by uncontrolled oxidation through free radicals and are considered harmful to human health (PMID: 33329396). As is the case with diacylglycerols, phosphatidylserines can have many different combinations of fatty acids of varying lengths, saturation and degrees of oxidation attached at the C-1 and C-2 positions. PS(LTE4/22:4(7Z,10Z,13Z,16Z)), in particular, consists of one chain of one Leukotriene E4 at the C-1 position and one chain of 7Z,10Z,13Z,16Z-docosatetraenoyl at the C-2 position. Phospholipids are ubiquitous in nature and are key components of the lipid bilayer of cells, as well as being involved in metabolism and signaling. Similarly to what occurs with phospholipids, the fatty acid distribution at the C-1 and C-2 positions of glycerol within oxidized phospholipids is continually in flux, owing to phospholipid degradation and the continuous phospholipid remodeling that occurs while these molecules are in membranes. Oxidized PSs can be synthesized via three different routes. In one route, the oxidized PS is synthetized de novo following the same mechanisms as for PSs but incorporating oxidized acyl chains (PMID: 33329396). An alternative is the transacylation of one of the non-oxidized acyl chains with an oxidized acylCoA (PMID: 33329396). The third pathway results from the oxidation of the acyl chain while still attached to the PS backbone, mainly through the action of LOX (PMID: 33329396).
medicagenic acid 28-O-alpha-L-rhamnopyranosyl-(1?2)-4-O-[(3?-hydroxy-2?-methyl-butyroyloxy)-3-hydroxy-2-methyl-butyroyloxy]-beta-D-fucopyranosyl ester
PIM1 34:3
Microcystin
D009676 - Noxae > D002273 - Carcinogens > D052998 - Microcystins D004791 - Enzyme Inhibitors
PI(22:2(13Z,16Z)/22:6(5Z,8E,10Z,13Z,15E,19Z)-2OH(7S, 17S))
PI(22:6(5Z,8E,10Z,13Z,15E,19Z)-2OH(7S, 17S)/22:2(13Z,16Z))
PI(22:2(13Z,16Z)/22:6(4Z,7Z,11E,13Z,15E,19Z)-2OH(10S,17))
PI(22:6(4Z,7Z,11E,13Z,15E,19Z)-2OH(10S,17)/22:2(13Z,16Z))
15-[3-(diaminomethylideneamino)propyl]-18-[(1E,3E)-6-hydroxy-3,5-dimethyl-7-phenylhepta-1,3-dienyl]-1,5,12,19,21-pentamethyl-2-methylidene-8-(2-methylpropyl)-3,6,9,13,16,20,25-heptaoxo-1,4,7,10,14,17,21-heptazacyclopentacosane-11,22-dicarboxylic acid
15-[3-(diaminomethylideneamino)propyl]-18-[(1Z,3Z)-6-methoxy-3,5-dimethyl-7-phenylhepta-1,3-dienyl]-1,5,12,19-tetramethyl-2-methylidene-8-(2-methylpropyl)-3,6,9,13,16,20,25-heptaoxo-1,4,7,10,14,17,21-heptazacyclopentacosane-11,22-dicarboxylic acid
[1-[(5Z,8Z,11Z,14Z,17Z,20Z,23Z)-hexacosa-5,8,11,14,17,20,23-heptaenoxy]-3-[hydroxy-(2,3,4,5,6-pentahydroxycyclohexyl)oxyphosphoryl]oxypropan-2-yl] (4Z,7Z,10Z,13Z,16Z,19Z)-docosa-4,7,10,13,16,19-hexaenoate
[1-[(4Z,7Z,10Z,13Z,16Z,19Z)-docosa-4,7,10,13,16,19-hexaenoxy]-3-[hydroxy-(2,3,4,5,6-pentahydroxycyclohexyl)oxyphosphoryl]oxypropan-2-yl] (5Z,8Z,11Z,14Z,17Z,20Z,23Z)-hexacosa-5,8,11,14,17,20,23-heptaenoate
[2-[(4Z,7Z,10Z,13Z)-hexadeca-4,7,10,13-tetraenoyl]oxy-3-[[2-[(7Z,10Z,13Z)-hexadeca-7,10,13-trienoyl]oxy-3-hydroxypropoxy]-hydroxyphosphoryl]oxypropyl] (8Z,11Z,14Z,17Z)-icosa-8,11,14,17-tetraenoate
[3-[[2-[(7Z,10Z,13Z)-hexadeca-7,10,13-trienoyl]oxy-3-hydroxypropoxy]-hydroxyphosphoryl]oxy-2-[(6Z,9Z,12Z,15Z)-octadeca-6,9,12,15-tetraenoyl]oxypropyl] (6Z,9Z,12Z,15Z)-octadeca-6,9,12,15-tetraenoate
[2-[(4Z,7Z,10Z,13Z)-hexadeca-4,7,10,13-tetraenoyl]oxy-3-[[2-[(4Z,7Z,10Z,13Z)-hexadeca-4,7,10,13-tetraenoyl]oxy-3-hydroxypropoxy]-hydroxyphosphoryl]oxypropyl] (11Z,14Z,17Z)-icosa-11,14,17-trienoate
[1-[[2-[(9Z,12Z)-hexadeca-9,12-dienoyl]oxy-3-hydroxypropoxy]-hydroxyphosphoryl]oxy-3-[(3Z,6Z,9Z,12Z,15Z)-octadeca-3,6,9,12,15-pentaenoyl]oxypropan-2-yl] (6Z,9Z,12Z,15Z)-octadeca-6,9,12,15-tetraenoate
[1-[(9Z,12Z)-hexadeca-9,12-dienoyl]oxy-3-[[2-[(4Z,7Z,10Z,13Z)-hexadeca-4,7,10,13-tetraenoyl]oxy-3-hydroxypropoxy]-hydroxyphosphoryl]oxypropan-2-yl] (5Z,8Z,11Z,14Z,17Z)-icosa-5,8,11,14,17-pentaenoate
[3-[[2-[(Z)-hexadec-9-enoyl]oxy-3-hydroxypropoxy]-hydroxyphosphoryl]oxy-2-[(3Z,6Z,9Z,12Z,15Z)-octadeca-3,6,9,12,15-pentaenoyl]oxypropyl] (3Z,6Z,9Z,12Z,15Z)-octadeca-3,6,9,12,15-pentaenoate
[3-[hydroxy-[3-hydroxy-2-[(Z)-tetradec-9-enoyl]oxypropoxy]phosphoryl]oxy-2-[(3Z,6Z,9Z,12Z,15Z)-octadeca-3,6,9,12,15-pentaenoyl]oxypropyl] (5Z,8Z,11Z,14Z,17Z)-icosa-5,8,11,14,17-pentaenoate
[1-[[3-[(7Z,10Z,13Z)-hexadeca-7,10,13-trienoyl]oxy-2-[(3Z,6Z,9Z,12Z,15Z)-octadeca-3,6,9,12,15-pentaenoyl]oxypropoxy]-hydroxyphosphoryl]oxy-3-hydroxypropan-2-yl] (9Z,12Z,15Z)-octadeca-9,12,15-trienoate
[1-[[2-[(4Z,7Z,10Z,13Z)-hexadeca-4,7,10,13-tetraenoyl]oxy-3-hydroxypropoxy]-hydroxyphosphoryl]oxy-3-[(7Z,10Z,13Z)-hexadeca-7,10,13-trienoyl]oxypropan-2-yl] (8Z,11Z,14Z,17Z)-icosa-8,11,14,17-tetraenoate
[1-[[2-[(7Z,10Z,13Z)-hexadeca-7,10,13-trienoyl]oxy-3-hydroxypropoxy]-hydroxyphosphoryl]oxy-3-[(3Z,6Z,9Z,12Z,15Z)-octadeca-3,6,9,12,15-pentaenoyl]oxypropan-2-yl] (9Z,12Z,15Z)-octadeca-9,12,15-trienoate
[3-[[2-[(4Z,7Z,10Z,13Z)-hexadeca-4,7,10,13-tetraenoyl]oxy-3-hydroxypropoxy]-hydroxyphosphoryl]oxy-2-[(6Z,9Z,12Z,15Z)-octadeca-6,9,12,15-tetraenoyl]oxypropyl] (9Z,12Z,15Z)-octadeca-9,12,15-trienoate
[3-[[2-[(9Z,12Z)-hexadeca-9,12-dienoyl]oxy-3-hydroxypropoxy]-hydroxyphosphoryl]oxy-2-[(4Z,7Z,10Z,13Z)-hexadeca-4,7,10,13-tetraenoyl]oxypropyl] (5Z,8Z,11Z,14Z,17Z)-icosa-5,8,11,14,17-pentaenoate
[1-[(2-dodecanoyloxy-3-hydroxypropoxy)-hydroxyphosphoryl]oxy-3-[(3Z,6Z,9Z,12Z,15Z)-octadeca-3,6,9,12,15-pentaenoyl]oxypropan-2-yl] (4Z,7Z,10Z,13Z,16Z,19Z)-docosa-4,7,10,13,16,19-hexaenoate
[1-[[3-[(Z)-hexadec-9-enoyl]oxy-2-[(3Z,6Z,9Z,12Z,15Z)-octadeca-3,6,9,12,15-pentaenoyl]oxypropoxy]-hydroxyphosphoryl]oxy-3-hydroxypropan-2-yl] (3Z,6Z,9Z,12Z,15Z)-octadeca-3,6,9,12,15-pentaenoate
[3-[[2-[(9Z,12Z)-hexadeca-9,12-dienoyl]oxy-3-hydroxypropoxy]-hydroxyphosphoryl]oxy-2-[(3Z,6Z,9Z,12Z,15Z)-octadeca-3,6,9,12,15-pentaenoyl]oxypropyl] (6Z,9Z,12Z,15Z)-octadeca-6,9,12,15-tetraenoate
[1-[[2-[(4Z,7Z,10Z,13Z)-hexadeca-4,7,10,13-tetraenoyl]oxy-3-hydroxypropoxy]-hydroxyphosphoryl]oxy-3-[(3Z,6Z,9Z,12Z,15Z)-octadeca-3,6,9,12,15-pentaenoyl]oxypropan-2-yl] (9Z,12Z)-octadeca-9,12-dienoate
[1-dodecanoyloxy-3-[hydroxy-[3-hydroxy-2-[(3Z,6Z,9Z,12Z,15Z)-octadeca-3,6,9,12,15-pentaenoyl]oxypropoxy]phosphoryl]oxypropan-2-yl] (4Z,7Z,10Z,13Z,16Z,19Z)-docosa-4,7,10,13,16,19-hexaenoate
[1-[[3-[(7Z,10Z,13Z)-hexadeca-7,10,13-trienoyl]oxy-2-[(6Z,9Z,12Z,15Z)-octadeca-6,9,12,15-tetraenoyl]oxypropoxy]-hydroxyphosphoryl]oxy-3-hydroxypropan-2-yl] (6Z,9Z,12Z,15Z)-octadeca-6,9,12,15-tetraenoate
[3-[[2-[(4Z,7Z,10Z,13Z)-hexadeca-4,7,10,13-tetraenoyl]oxy-3-hydroxypropoxy]-hydroxyphosphoryl]oxy-2-[(3Z,6Z,9Z,12Z,15Z)-octadeca-3,6,9,12,15-pentaenoyl]oxypropyl] (9Z,12Z)-octadeca-9,12-dienoate
[1-[[3-[(4Z,7Z,10Z,13Z)-hexadeca-4,7,10,13-tetraenoyl]oxy-2-[(6Z,9Z,12Z,15Z)-octadeca-6,9,12,15-tetraenoyl]oxypropoxy]-hydroxyphosphoryl]oxy-3-hydroxypropan-2-yl] (9Z,12Z,15Z)-octadeca-9,12,15-trienoate
[1-[hydroxy-[3-hydroxy-2-[(Z)-tetradec-9-enoyl]oxypropoxy]phosphoryl]oxy-3-[(3Z,6Z,9Z,12Z,15Z)-octadeca-3,6,9,12,15-pentaenoyl]oxypropan-2-yl] (5Z,8Z,11Z,14Z,17Z)-icosa-5,8,11,14,17-pentaenoate
[1-[(4Z,7Z,10Z,13Z)-hexadeca-4,7,10,13-tetraenoyl]oxy-3-[[2-[(4Z,7Z,10Z,13Z)-hexadeca-4,7,10,13-tetraenoyl]oxy-3-hydroxypropoxy]-hydroxyphosphoryl]oxypropan-2-yl] (11Z,14Z,17Z)-icosa-11,14,17-trienoate
[1-[[2-[(9Z,12Z)-hexadeca-9,12-dienoyl]oxy-3-hydroxypropoxy]-hydroxyphosphoryl]oxy-3-[(4Z,7Z,10Z,13Z)-hexadeca-4,7,10,13-tetraenoyl]oxypropan-2-yl] (5Z,8Z,11Z,14Z,17Z)-icosa-5,8,11,14,17-pentaenoate
[1-[[2-[(4Z,7Z,10Z,13Z)-hexadeca-4,7,10,13-tetraenoyl]oxy-3-hydroxypropoxy]-hydroxyphosphoryl]oxy-3-[(6Z,9Z,12Z,15Z)-octadeca-6,9,12,15-tetraenoyl]oxypropan-2-yl] (9Z,12Z,15Z)-octadeca-9,12,15-trienoate
[2-[(7Z,10Z,13Z)-hexadeca-7,10,13-trienoyl]oxy-3-[[2-[(7Z,10Z,13Z)-hexadeca-7,10,13-trienoyl]oxy-3-hydroxypropoxy]-hydroxyphosphoryl]oxypropyl] (5Z,8Z,11Z,14Z,17Z)-icosa-5,8,11,14,17-pentaenoate
[1-[(4Z,7Z,10Z,13Z)-hexadeca-4,7,10,13-tetraenoyl]oxy-3-[[2-[(7Z,10Z,13Z)-hexadeca-7,10,13-trienoyl]oxy-3-hydroxypropoxy]-hydroxyphosphoryl]oxypropan-2-yl] (8Z,11Z,14Z,17Z)-icosa-8,11,14,17-tetraenoate
[1-[[2-[(4Z,7Z,10Z,13Z)-hexadeca-4,7,10,13-tetraenoyl]oxy-3-hydroxypropoxy]-hydroxyphosphoryl]oxy-3-[(Z)-tetradec-9-enoyl]oxypropan-2-yl] (4Z,7Z,10Z,13Z,16Z,19Z)-docosa-4,7,10,13,16,19-hexaenoate
[1-[(7Z,10Z,13Z)-hexadeca-7,10,13-trienoyl]oxy-3-[[2-[(7Z,10Z,13Z)-hexadeca-7,10,13-trienoyl]oxy-3-hydroxypropoxy]-hydroxyphosphoryl]oxypropan-2-yl] (5Z,8Z,11Z,14Z,17Z)-icosa-5,8,11,14,17-pentaenoate
[1-[[3-[(4Z,7Z,10Z,13Z)-hexadeca-4,7,10,13-tetraenoyl]oxy-2-[(3Z,6Z,9Z,12Z,15Z)-octadeca-3,6,9,12,15-pentaenoyl]oxypropoxy]-hydroxyphosphoryl]oxy-3-hydroxypropan-2-yl] (9Z,12Z)-octadeca-9,12-dienoate
[3-[(2-dodecanoyloxy-3-hydroxypropoxy)-hydroxyphosphoryl]oxy-2-[(3Z,6Z,9Z,12Z,15Z)-octadeca-3,6,9,12,15-pentaenoyl]oxypropyl] (4Z,7Z,10Z,13Z,16Z,19Z)-docosa-4,7,10,13,16,19-hexaenoate
[1-[[3-[(9Z,12Z)-hexadeca-9,12-dienoyl]oxy-2-[(3Z,6Z,9Z,12Z,15Z)-octadeca-3,6,9,12,15-pentaenoyl]oxypropoxy]-hydroxyphosphoryl]oxy-3-hydroxypropan-2-yl] (6Z,9Z,12Z,15Z)-octadeca-6,9,12,15-tetraenoate
[3-[[2-[(7Z,10Z,13Z)-hexadeca-7,10,13-trienoyl]oxy-3-hydroxypropoxy]-hydroxyphosphoryl]oxy-2-[(3Z,6Z,9Z,12Z,15Z)-octadeca-3,6,9,12,15-pentaenoyl]oxypropyl] (9Z,12Z,15Z)-octadeca-9,12,15-trienoate
[1-[(4Z,7Z,10Z,13Z)-hexadeca-4,7,10,13-tetraenoyl]oxy-3-[hydroxy-[3-hydroxy-2-[(Z)-tetradec-9-enoyl]oxypropoxy]phosphoryl]oxypropan-2-yl] (4Z,7Z,10Z,13Z,16Z,19Z)-docosa-4,7,10,13,16,19-hexaenoate
[1-[hydroxy-[3-hydroxy-2-[(3Z,6Z,9Z,12Z,15Z)-octadeca-3,6,9,12,15-pentaenoyl]oxypropoxy]phosphoryl]oxy-3-[(Z)-tetradec-9-enoyl]oxypropan-2-yl] (5Z,8Z,11Z,14Z,17Z)-icosa-5,8,11,14,17-pentaenoate
[2-[(4Z,7Z,10Z,13Z)-hexadeca-4,7,10,13-tetraenoyl]oxy-3-[hydroxy-[3-hydroxy-2-[(Z)-tetradec-9-enoyl]oxypropoxy]phosphoryl]oxypropyl] (4Z,7Z,10Z,13Z,16Z,19Z)-docosa-4,7,10,13,16,19-hexaenoate
microcystin-LR
A microcystin consisting of D-alanyl, L-leucyl, (3S)-3-methyl-D-beta-aspartyl,L-arginyl, 2S,3S,4E,6E,8S,9S)-3-amino-4,5,6,7-tetradehydro-9-methoxy-2,6,8-trimethyl-10-phenyldecanoyl, D-gamma-glutamyl, and 2,3-didehydro-N-methylalanyl residues joined into a 25-membered macrocycle. Produced by the cyanobacterium Microcystis aeruginosa, it is the most studied of the microcystins. D009676 - Noxae > D002273 - Carcinogens > D052998 - Microcystins D009676 - Noxae > D011042 - Poisons > D008387 - Marine Toxins D004791 - Enzyme Inhibitors
