A product of soybean LO-2 metabolism of α-linolenic acid
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13(S)-HpOTrE

Item No. 45220

Technical Information
Formal Name
13S-hydroperoxy-9Z,11E,15Z-octadecatrienoic acid
CAS Number
67597-26-6
Molecular Formula
C18H30O4
Formula Weight
Purity
≥98%
A 1 mg/ml solution in ethanol
DMF: 50 mg/mlDMSO: 50 mg/mlEthanol: 50 mg/mlPBS pH 7.2: 1 mg/ml
λmax
235 nm
SMILES
CC/C=C\C[C@H](OO)/C=C/C=C\CCCCCCCC(O)=O
InChi Code
InChI=1S/C18H30O4/c1-2-3-11-14-17(22-21)15-12-9-7-5-4-6-8-10-13-16-18(19)20/h3,7,9,11-12,15,17,21H,2,4-6,8,10,13-14,16H2,1H3,(H,19,20)/b9-7-,11-3-,15-12+
InChi Key
UYQGVDXDXBAABN-JDTPQGGVSA-N
Shipping & Storage Information
Storage
-80°C
Shipping
Dry ice in continental US; may vary elsewhere
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    Product Description

    13(S)-HpOTrE is a monohydroperoxy polyunsaturated fatty acid produced in soybeans by the action of soybean LO-2 on esterified α-linolenic acid.1 Incubation of soybean seedling biomembranes with soybean LO-2 catalyzes the formation of both 9- and 13-HpOTrE in a molar ratio of 10:1.1 In plants, 13(S)-HpOTrE can be metabolized by the hydroperoxide lyase pathway producing aldehyde and oxoacid fragments, or by the hydroperoxide dehydratase pathway producing jasmonic acid.2,3,4 Treatment of tomato leaves with 13-HpOTrE causes induction of proteinase inhibitors, simulating the normal response to wounding.5 This data suggests that in plants 13(S)-HpOTrE may participate in a lipid-based signalling system initiated by insect and pathogen attack.

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Maccarrone, M., van Aarle, P.G.M., Veldink, G.A., et alIn vitro oxygenation of soybean biomembranes by lipoxygenase-2. Biochim. Biophys. Acta 1190, 164-169 (1994).

    2. Vick, B.A. Oxygenated fatty acids of the lipoxygenase pathway. Lipid Metabolism in Plants 167-191 (1993).

    3. Salch, Y.P., Grove, M.J., Takamura, H., et alCharacterization of a C-5,13-cleaving enzyme of 13(S)-hydroperoxide of linolenic acid by soybean seed. Plant Physiol. 108, 1211-1218 (1995).

    4. Simpson, T.D., and Garnder, H.W. Allene oxide synthase and allene oxide cyclase, enzymes of the jasmonic acid pathway, localized in Glycine max tissues. Plant Physiol. 108, 199-202 (1995).

    5. Farmer, E.E., and Ryan, C.A. Octadecanoid precursors of jasmonic acid activate the synthesis of wound-inducible proteinase inhibitors. Plant Cell 4, 129-134 (1992).