Exact Mass: 900.4592614
Exact Mass Matches: 900.4592614
Found 16 metabolites which its exact mass value is equals to given mass value 900.4592614,
within given mass tolerance error 0.01 dalton. Try search metabolite list with more accurate mass tolerance error
0.001 dalton.
PI(16:2(9Z,12Z)/20:5(7Z,9Z,11E,13E,17Z)-3OH(5,6,15))
C45H73O16P (900.4635987999999)
PI(16:2(9Z,12Z)/20:5(7Z,9Z,11E,13E,17Z)-3OH(5,6,15)) 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(16:2(9Z,12Z)/20:5(7Z,9Z,11E,13E,17Z)-3OH(5,6,15)), in particular, consists of one chain of 9Z,12Z-hexadecenoyl at the C-1 position and one chain of Lipoxin A5 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(20:5(7Z,9Z,11E,13E,17Z)-3OH(5,6,15)/16:2(9Z,12Z))
C45H73O16P (900.4635987999999)
PI(20:5(7Z,9Z,11E,13E,17Z)-3OH(5,6,15)/16:2(9Z,12Z)) 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(20:5(7Z,9Z,11E,13E,17Z)-3OH(5,6,15)/16:2(9Z,12Z)), in particular, consists of one chain of Lipoxin A5 at the C-1 position and one chain of 9Z,12Z-hexadecenoyl 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.
geranylgeranyl-chlorophyll b
Geranylgeranyl-chlorophyll b can be found in a number of food items such as durian, custard apple, garland chrysanthemum, and pecan nut, which makes geranylgeranyl-chlorophyll b a potential biomarker for the consumption of these food products.
YM 47142
cyclo-(L-Pro-L-Prob-L-Trp-L-His-Gly-L-Val-L-Asn-L-Ile)|tunicyclin D
PI(16:2(9Z,12Z)/20:5(7Z,9Z,11E,13E,17Z)-3OH(5,6,15))
C45H73O16P (900.4635987999999)
PI(20:5(7Z,9Z,11E,13E,17Z)-3OH(5,6,15)/16:2(9Z,12Z))
C45H73O16P (900.4635987999999)
N-(3-methylbutanoyl)-L-phenylalanyl-N-[(3R,6S,9S,14S,17S,18R)-6-(2-amino-2-oxoethyl)-3,18-dimethyl-9,14-bis(2-methylpropyl)-2,5,8,11,12,13,16-heptaoxo-1-oxa-4,7,10,15-tetraazacyclooctadecan-17-yl]-L-threoninamide
YM-47142
A 18-membered cyclodepsipeptide isolated from the culture broth of Flexibacter. It exhibits potent inhibitory activity against human leukocyte elastase (EC 6.5.1.1.).