Exact Mass: 728.5743
Exact Mass Matches: 728.5743
Found 39 metabolites which its exact mass value is equals to given mass value 728.5743,
within given mass tolerance error 0.0002 dalton. Try search metabolite list with more accurate mass tolerance error
4.0E-5 dalton.
Ubiquinol 8
Ubiquinol 8 is a ubiquinol in which the polyprenyl substituent is octaprenyl. Ubiquinol-8 is the reduced form of ubiquinone-8. Ubiquinone (also known as coenzyme Q) is an isoprenoid quinone that functions as an electron carrier in membranes. In eukaryotes, ubiquinone is found mostly within the inner mitochondrial membrane where it functions in respiratory electron transport, transferring two electrons from either complex I (NADH dehydrogenase) or complex II (succinate-ubiquinone reductase) to complex III (bc1 complex). The quinone nucleus of ubiquinone is derived directly from 4-hydroxybenzoate, while the isoprenoid subunits of the polyisoprenoid tail are synthesized via the methylerythritol phosphate pathway, which feeds isoprene units into the polyprenyl biosynthesis pathways. The number of isoprenoid subunits in the ubiquinone side chain varies in different species. For example, Saccharomyces cerevisiae has 6 such subunits, Escherichia coli K-12 has 8, rat and mouse have 9, and Homo sapiens has 10. Ubiquinol-8 is effective as an anti-oxidant. By donating one of its hydrogen atoms to become the free-radical semiquinone (.Q-), it can neutralize a lipid peroxyl radical. The free-radical semiquinone is then restored to a non-free-radical state by the respiratory chain Q cycle. Ubiquinol or the free-radical semiquinone can also regenerate the Vitamin E tocopheroxyl radical by electron donation (http://www.benbest.com/nutrceut/CoEnzymeQ.html).
CE(22:6(5Z,8E,10Z,13Z,15E,19Z)-2OH(7S, 17S))
CE(22:6(5Z,8E,10Z,13Z,15E,19Z)-2OH(7S, 17S)) belongs to the family of cholesteryl esters, whose structure is characetized by a cholesterol esterified at the 3-position with a fatty acid. A cholesteryl ester is an ester of cholesterol. Fatty acid esters of cholesterol constitute about two-thirds of the cholesterol in the plasma. Cholesterol is a sterol (a combination steroid and alcohol) and a lipid found in the cell membranes of all body tissues, and transported in the blood plasma of all animals. The accumulation of cholesterol esters in the arterial intima (the innermost layer of an artery, in direct contact with the flowing blood) is a characteristic feature of atherosclerosis. Atherosclerosis is a disease affecting arterial blood vessels. It is a chronic inflammatory response in the walls of arteries, in large part to the deposition of lipoproteins (plasma proteins that carry cholesterol and triglycerides). CE(22:6(5Z,8E,10Z,13Z,15E,19Z)-2OH(7S, 17S)) may also accumulate in hereditary hypercholesterolemia, an inborn error of metabolism.
CE(22:6(4Z,7Z,11E,13Z,15E,19Z)-2OH(10S,17))
CE(22:6(4Z,7Z,11E,13Z,15E,19Z)-2OH(10S,17)) belongs to the family of cholesteryl esters, whose structure is characetized by a cholesterol esterified at the 3-position with a fatty acid. A cholesteryl ester is an ester of cholesterol. Fatty acid esters of cholesterol constitute about two-thirds of the cholesterol in the plasma. Cholesterol is a sterol (a combination steroid and alcohol) and a lipid found in the cell membranes of all body tissues, and transported in the blood plasma of all animals. The accumulation of cholesterol esters in the arterial intima (the innermost layer of an artery, in direct contact with the flowing blood) is a characteristic feature of atherosclerosis. Atherosclerosis is a disease affecting arterial blood vessels. It is a chronic inflammatory response in the walls of arteries, in large part to the deposition of lipoproteins (plasma proteins that carry cholesterol and triglycerides). CE(22:6(4Z,7Z,11E,13Z,15E,19Z)-2OH(10S,17)) may also accumulate in hereditary hypercholesterolemia, an inborn error of metabolism.
