Exact Mass: 457.2577

Exact Mass Matches: 457.2577

Found 131 metabolites which its exact mass value is equals to given mass value 457.2577, within given mass tolerance error 0.01 dalton. Try search metabolite list with more accurate mass tolerance error 0.001 dalton.

10,11-Dihydro-12R-hydroxy-leukotriene E4

(5S,6R,7E,9E,12S,14Z)-6-{[(2S)-2-amino-2-carboxyethyl]sulfanyl}-5,12-dihydroxyicosa-7,9,14-trienoic acid

C23H39NO6S (457.2498)

10,11-dihydro-12R-hydroxy-leukotriene E4 is a metabolite through lipid oxidation of Leukotriene E4 (LTE4).Leukotriene E4 (LTE4) is a cysteinyl leukotriene. Cysteinyl leukotrienes (CysLTs) are a family of potent inflammatory mediators that appear to contribute to the pathophysiologic features of allergic rhinitis. Nasal blockage induced by CysLTs is mainly due to dilatation of nasal blood vessels, which can be induced by the nitric oxide produced through CysLT1 receptor activation. LTE4, activate contractile and inflammatory processes via specific interaction with putative seven transmembrane-spanning receptors that couple to G proteins and subsequent intracellular signaling pathways. LTE4 is metabolized from leukotriene C4 in a reaction catalyzed by gamma-glutamyl transpeptidase and a particulate dipeptidase from kidney. (PMID: 12607939, 12432945, 6311078). Leukotrienes are eicosanoids. The eicosanoids consist of the prostaglandins (PGs), thromboxanes (TXs), leukotrienes (LTs), and lipoxins (LXs). The PGs and TXs are collectively identified as prostanoids. Prostaglandins were originally shown to be synthesized in the prostate gland, thromboxanes from platelets (thrombocytes), and leukotrienes from leukocytes, hence the derivation of their names. All mammalian cells except erythrocytes synthesize eicosanoids. These molecules are extremely potent, able to cause profound physiological effects at very dilute concentrations. All eicosanoids function locally at the site of synthesis, through receptor-mediated G-protein linked signalling pathways. 10,11-dihydro-12R-hydroxy-leukotriene E4 is a metabolite through lipid oxidation of Leukotriene E4 (LTE4).Leukotriene E4 (LTE4) is a cysteinyl leukotriene. Cysteinyl leukotrienes (CysLTs) are a family of potent inflammatory mediators that appear to contribute to the pathophysiologic features of allergic rhinitis. Nasal blockage induced by CysLTs is mainly due to dilatation of nasal blood vessels, which can be induced by the nitric oxide produced through CysLT1 receptor activation. LTE4, activate contractile and inflammatory processes via specific interaction with putative seven transmembrane-spanning receptors that couple to G proteins and subsequent intracellular signaling pathways. LTE4 is metabolized from leukotriene C4 in a reaction catalyzed by gamma-glutamyl transpeptidase and a particulate dipeptidase from kidney. (PMID: 12607939, 12432945, 6311078)

CENTCHROMAN

1-{2-[4-(7-methoxy-2,2-dimethyl-3-phenyl-3,4-dihydro-2H-1-benzopyran-4-yl)phenoxy]ethyl}pyrrolidine

C30H35NO3 (457.2617)

Asp Lys Pro Val

(3S)-3-amino-3-{[(2S)-6-amino-1-[(2S)-2-{[(1S)-1-carboxy-2-methylpropyl]carbamoyl}pyrrolidin-1-yl]-1-oxohexan-2-yl]carbamoyl}propanoic acid