Enzymes
| UniProtKB help_outline | 3 proteins |
Reaction participants Show >> << Hide
- Name help_outline (5Z,8Z,11Z,14Z,17Z)-eicosapentaenoate Identifier CHEBI:58562 (Beilstein: 9221337) help_outline Charge -1 Formula C20H29O2 InChIKeyhelp_outline JAZBEHYOTPTENJ-JLNKQSITSA-M SMILEShelp_outline CC\C=C/C\C=C/C\C=C/C\C=C/C\C=C/CCCC([O-])=O 2D coordinates Mol file for the small molecule Search links Involved in 24 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline O2 Identifier CHEBI:15379 (CAS: 7782-44-7) help_outline Charge 0 Formula O2 InChIKeyhelp_outline MYMOFIZGZYHOMD-UHFFFAOYSA-N SMILEShelp_outline O=O 2D coordinates Mol file for the small molecule Search links Involved in 2,709 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline (12S)-hydroperoxy-(5Z,8Z,10E,14Z,17Z)-eicosapentaenoate Identifier CHEBI:90772 Charge -1 Formula C20H29O4 InChIKeyhelp_outline HDMYXONNVAOHFR-UOLHMMFFSA-M SMILEShelp_outline C(=C\C\C=C/C=C/[C@H](C/C=C\C/C=C\CC)OO)\CCCC([O-])=O 2D coordinates Mol file for the small molecule Search links Involved in 2 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
| RHEA:48704 | RHEA:48705 | RHEA:48706 | RHEA:48707 | |
|---|---|---|---|---|
| Reaction direction help_outline | undefined | left-to-right | right-to-left | bidirectional |
| UniProtKB help_outline |
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Related reactions help_outline
More general form(s) of this reaction
Publications
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Investigations of human platelet-type 12-lipoxygenase: role of lipoxygenase products in platelet activation.
Ikei K.N., Yeung J., Apopa P.L., Ceja J., Vesci J., Holman T.R., Holinstat M.
Human platelet-type 12-lipoxygenase (12-LOX) has recently been shown to play an important role in regulation of human platelet function by reacting with arachidonic acid (AA). However, a number of other fatty acids are present on the platelet surface that, when cleaved from the phospholipid, can b ... >> More
Human platelet-type 12-lipoxygenase (12-LOX) has recently been shown to play an important role in regulation of human platelet function by reacting with arachidonic acid (AA). However, a number of other fatty acids are present on the platelet surface that, when cleaved from the phospholipid, can be oxidized by 12-LOX. We sought to characterize the substrate specificity of 12-LOX against six essential fatty acids: AA, dihomo-γ-linolenic acid (DGLA), eicosapentaenoic acid (EPA), α-linolenic acid (ALA), eicosadienoic acid (EDA), and linoleic acid (LA). Three fatty acids were comparable substrates (AA, DGLA, and EPA), one was 5-fold slower (ALA), and two showed no reactivity with 12-LOX (EDA and LA). The bioactive lipid products resulting from 12-LOX oxidation of DGLA, 12-(S)-hydroperoxy-8Z,10E,14Z-eicosatrienoic acid [12(S)-HPETrE], and its reduced product, 12(S)-HETrE, resulted in significant attenuation of agonist-mediated platelet aggregation, granule secretion, αIIbβ3 activation, Rap1 activation, and clot retraction. Treatment with DGLA similarly inhibited PAR1-mediated platelet activation as well as platelet clot retraction. These observations are in surprising contrast to our recent work showing 12(S)-HETE is a prothrombotic bioactive lipid and support our hypothesis that the overall effect of 12-LOX oxidation of fatty acids in the platelet is dependent on the fatty acid substrates available at the platelet membrane. << Less
J. Lipid Res. 53:2546-2559(2012) [PubMed] [EuropePMC]
This publication is cited by 2 other entries.