Structural Elucidation of the Ceramide Moiety of Starfish Gangliosides by Collision-Induced Dissociation of the Sodium Ion Complex

Masanori INAGAKI; Ryuichi ISOBE; Tomofumi MIYAMOTO; Ryuichi HIGUCHI

doi:10.1248/cpb.47.1184

Masanori INAGAKI, Ryuichi ISOBE, Tomofumi MIYAMOTO, Ryuichi HIGUCHI

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Keywords: ganglioside, sodium ion complex, collision-induced dissociation, FAB-MS, glycosphingolipid, starfish

JOURNAL FREE ACCESS

1999 Volume 47 Issue 8 Pages 1184-1187

DOI https://doi.org/10.1248/cpb.47.1184

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Abstract

Collision-induced dissociation (CID) spectra of sodium ion complexes ([M+Na]⁺ ions), produced by FAB-MS of methyl ester derivatives of ganglioside, indicate the length of the fatty acyl chain of the ceramide moieties without chemical degradation. In the case of a genuine ganglioside, only the fission of the glycosyl linkage of sialic acid was prominently observed.

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