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. 1989 Sep;91(1):367–372. doi: 10.1104/pp.91.1.367

Properties of a Lipoxygenase in Green Algae (Oscillatoria sp.)

Jean-Louis Beneytout 1, Rivo-Hery Andrianarison 1, Zafisolo Rakotoarisoa 1, Marie Tixier 1
PMCID: PMC1062001  PMID: 16667027

Abstract

A lipoxygenase preparation was obtained from green algae Oscillatoria sp. and was shown to differ from previous described lipoxygenases in the positional specificity and pH characteristics of the dioxygenation reaction. The enzyme had a pH optimum at 8.8 and was inactive at pH 6. Oscillatoria lipoxygenase converted linoleic acid into two products: 13-hydroperoxylinoleic acid (52%) and 9-hydroperoxylinoleic acid (48%). The molecular weight of the enzyme was estimated at 124,000. Esculetin was found to be the best inhibitor of the enzyme activity.

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Selected References

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