| Potato tuber phospholipids contain colneleic acid in the 2-position. | |
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MedLine Citation:
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PMID: 12633870 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Colneleic acid (9-[1'(E),3'(Z)-nonadienyloxy]-8(E)-nonenoic acid) is produced from linoleic acid by the sequential action of 9-lipoxygenase and divinyl ether synthase. We demonstrate that a small fraction of the colneleic acid in potato tubers is esterified in phospholipids. This colneleic acid was released by chemical hydrolysis and a phospholipase A(2), but not by a lipase with 1-acyl specificity. Phosphatidylcholine, phosphatidylethanolamine, and phosphatidylinositol contain molecular species with nominal masses consistent with identification as palmitoyl,colneleoyl species. Exact mass analysis of its fragments confirmed the identity of palmitoyl,colneloyl phosphatidylinositol. To our knowledge, this work represents the first identification of a colneleoyl phospholipid. |
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Authors:
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Marie-Laure Fauconnier; Todd D Williams; Michel Marlier; Ruth Welti |
Publication Detail:
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Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S. |
Journal Detail:
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Title: FEBS letters Volume: 538 ISSN: 0014-5793 ISO Abbreviation: FEBS Lett. Publication Date: 2003 Mar |
Date Detail:
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Created Date: 2003-03-13 Completed Date: 2003-04-25 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0155157 Medline TA: FEBS Lett Country: Netherlands |
Other Details:
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Languages: eng Pagination: 155-8 Citation Subset: IM |
Affiliation:
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Unité de Chimie Générale et Organique, Faculté Universitaire des Sciences Agronomiques de Gembloux, Passage des Déportés 2, B-5030 Gembloux, Belgium. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Chromatography, High Pressure Liquid Chromatography, Thin Layer Fatty Acids, Unsaturated / chemistry, metabolism* Phospholipids / metabolism* Solanum tuberosum / metabolism* Spectrometry, Mass, Electrospray Ionization |
| Chemical | |
Reg. No./Substance:
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0/Fatty Acids, Unsaturated; 0/Phospholipids; 52761-34-9/colneleic acid |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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