Exact Mass: 856.6557

Exact Mass Matches: 856.6557

Found 500 metabolites which its exact mass value is equals to given mass value 856.6557, within given mass tolerance error 0.05 dalton. Try search metabolite list with more accurate mass tolerance error 0.01 dalton.

Thyroxine sulfate

(2S)-2-Amino-3-{4-[3,5-diiodo-4-(sulphooxy)phenoxy]-3,5-diiodophenyl}propanoic acid

C15H11I4NO7S (856.6435)

Thyroxine Sulfate (abbreviated T4) is a major Thyroid hormone metabolite secreted by follicular cells of the Thyroid gland. T4 is transported in blood, with 99.95\\\% of the secreted T4 being protein bound, principally to thyroxine binding globulin (TBG) and to a lesser extent to thyroxine binding pre-albumin (TBPA) and serum albumin. T4 is involved in controlling the rate of metabolic processes in the body and influencing physical development. T4 is considered a prohormone and a reservoir for the active thyroid hormone triiodothyronine (T3), T4 being converted as required in the tissues by deiodinases. Thyroxine Sulfate (abbreviated T4) is a major Thyroid hormone metabolite secreted by follicular cells of the Thyroid gland. T4 is transported in blood, with 99.95\\\% of the secreted T4 being protein bound, principally to thyroxine binding globulin (TBG) and to a lesser extent to thyroxine binding pre-albumin (TBPA) and serum albumin. D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006728 - Hormones Thyroxine sulfate is a thyroid hormone metabolite.

PA(a-25:0/20:3(8Z,11Z,14Z)-2OH(5,6))

[(2R)-2-{[(8Z,11Z,14Z)-5,6-dihydroxyicosa-8,11,14-trienoyl]oxy}-3-[(22-methyltetracosanoyl)oxy]propoxy]phosphonic acid

C48H89O10P (856.6193)

PA(a-25:0/20:3(8Z,11Z,14Z)-2OH(5,6)) is an oxidized phosphatidic acid (PA). Oxidized phosphatidic acids are glycerophospholipids in which a phosphate moiety occupies a glycerol substitution site and at least one of the fatty acyl chains has undergone oxidation. As all oxidized lipids, oxidized phosphatidic acids 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, phosphatidic acids 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. PA(a-25:0/20:3(8Z,11Z,14Z)-2OH(5,6)), in particular, consists of one chain of one 22-methyltetracosanoyl at the C-1 position and one chain of 5,6-dihydroxyeicosatrienoyl 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 PAs can be synthesized via three different routes. In one route, the oxidized PA is synthetized de novo following the same mechanisms as for PAs 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 PA backbone, mainly through the action of LOX (PMID: 33329396).

PA(20:3(8Z,11Z,14Z)-2OH(5,6)/a-25:0)

[(2R)-3-{[(8Z,11Z,14Z)-5,6-dihydroxyicosa-8,11,14-trienoyl]oxy}-2-[(22-methyltetracosanoyl)oxy]propoxy]phosphonic acid

C48H89O10P (856.6193)

PA(20:3(8Z,11Z,14Z)-2OH(5,6)/a-25:0) is an oxidized phosphatidic acid (PA). Oxidized phosphatidic acids are glycerophospholipids in which a phosphate moiety occupies a glycerol substitution site and at least one of the fatty acyl chains has undergone oxidation. As all oxidized lipids, oxidized phosphatidic acids 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, phosphatidic acids 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. PA(20:3(8Z,11Z,14Z)-2OH(5,6)/a-25:0), in particular, consists of one chain of one 5,6-dihydroxyeicosatrienoyl 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 PAs can be synthesized via three different routes. In one route, the oxidized PA is synthetized de novo following the same mechanisms as for PAs 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 PA backbone, mainly through the action of LOX (PMID: 33329396).