Literature DB >> 11423114

Structural analysis of a new glycosphingolipid from the lipopolysaccharide-lacking bacterium Sphingomonas adhaesiva.

K Kawahara1, B Lindner, Y Isshiki, K Jakob, Y A Knirel, U Zähringer.   

Abstract

A new glycosphingolipid, GSL-4B, was isolated from Sphingomonas adhaesiva and found to share the ceramide moiety with GSL-1 and GSL-3 from Sphingomonas capsulata studied earlier [Kawahara, K.; Moll, H.; Knirel, Y. A.; Seydel, U.; Zähringer, U. Eur. J. Biochem. 2000, 267, 1837-1846]. It is heterogeneous with respect to the long-chain bases erythro-2-amino-1,3-octadecanediol (sphinganine), (13Z)-erythro-2-amino-13-eicosene-1,3-diol, and (13Z)-erythro-2-amino-13,14-methylene-1,3-eicosanediol which in GSL-4B are present in the ratios of 1.1:1.0:1.1, and all bearing amide-linked (S)-2-hydroxymyristic acid. Methylation analysis and MALDI-TOF-MS along with 1H and 13C NMR spectroscopy showed that the carbohydrate part of GSL-4B has the structure of alpha-D-Glcp-(1-->4)-alpha-D-Galp-(1-->6)-alpha-D-Glcp-(1-->4)-alpha-D-GlcpA-(1-->1)-Cer

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Year:  2001        PMID： 11423114     DOI： 10.1016/s0008-6215(01)00111-2

Source DB:  PubMed          Journal:  Carbohydr Res        ISSN： 0008-6215            Impact factor:   2.104


  10 in total

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Review 10.  Biodiversity of sphingoid bases ("sphingosines") and related amino alcohols.

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  10 in total

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