Exact Mass: 439.2392
Exact Mass Matches: 439.2392
Found 11 metabolites which its exact mass value is equals to given mass value 439.2392,
within given mass tolerance error 0.001 dalton. Try search metabolite list with more accurate mass tolerance error
0.0002 dalton.
Leukotriene E4
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 activates 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 and are 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 signaling pathways. 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)
11-trans-LTE4
11-trans-LTE4 is also known as 11-trans-Leukotriene e4 or 11t-LTE4. 11-trans-LTE4 is considered to be practically insoluble (in water) and acidic. 11-trans-LTE4 is an eicosanoid lipid molecule
(5S,6R,7E,9E,11Z,14Z)-6-((R)-2-Amino-2-carboxyethylthio)-5-hydroxyicosa-7,9,11,14-tetraenoic acid
11-trans-LTE4
A leukotriene that is the 11-trans-isomer of leukotriene E4.
Leukotriene E
A leukotriene that is (7E,9E,11Z,14Z)-icosa-7,9,11,14-tetraenoic acid substituted by a hydroxy group at position 5 (5S) and an L-cystein-S-yl group at position 6 (6R).
eoxin E4
A leukotriene that is the 14R-(S-cysteinyl),15S-hydroxy derivative of (5Z,8Z,10E,12E)-icosa-7,9,11,14-tetraenoic acid.
