イトメ, <I>TylorhynChus heterochaetus</I>, (環形動物) の中性及び両性イオン型スフインゴ糖脂質

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書誌事項

タイトル別名
  • Neutral and Amphoteric Glycosphingolipids from Annelida (Lugworm, <I>Tylorhynchus heterochaetus</I>)
  • イトメ Tylorhynchus heterochaetus カンケイ ドウブ

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説明

Gal β 1-Cer (CMS3) and cholinephosphoryl→6 Gal β 1-Cer (PGL) were found as the main neutral and amphoteric glycosphingolipids from the whole tissue of the lugworm, Tylorhynchus heterochaetus. These lipids were purified by successive column chromatography on DEAE- and QAE-Sephadex A-25, Florisil and silicic acid (Iatrobeads), and identified by gas-liquid chromatography, methylation analysis, enzymatic hydrolysis, chromium trioxide oxidation, hydrogen fluoride degradation and positive-ion fast atom bombardment mass spectrometry.<BR>The ceramide moieties of both glycolipids were virtually the same : fatty acids were saturated C16-, C17- and C18-acids ; sphingoids were octadeca-4-sphingenine and octadeca-4, 8-sphingadienine. The structural similarity of the ceramide moieties suggests PGL biosynthesis from CMS3.<BR>In addition, their thin-layer chromatographic behaviors and the results of sugar analysis suggest that the structures of at least three minor components of the ceramide mono-, di- and trisaccharide fractions are Glc-Cer, Man-Gal-Cer and Man-Gal-Gal-Cer, respectively.

収録刊行物

  • 油化学

    油化学 42 (11), 935-941, 1993

    公益社団法人 日本油化学会

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