title: Chemical structure of glycosphingolipids isolated from Sphingomonas paucimobilis.
abstract: Two novel glycosphingolipids were isolated from Sphingomonas paucimobilis and their structures were completely elucidated. The glycosyl portion of the glycosphingolipid consists of an alpha-D-Manp-[1----2)-alpha-D-Galp-(1----6)-alpha-D-GlcpN-(1 ----4)-alpha-D- GlcpA-R tetrasaccharide. The hydrophobic residue R was found to be heterogeneous with respect to the dihydrosphingosine residue. Erythro-1,3-dihydroxy-2-amino-octadecane and erythro-1,3-dihydroxy-2-amino-cis-13,14-methyleneoctadecane were identified in comparable amounts. Both dihydrosphingosine derivatives were quantitatively substituted by an (S)-2-hydroxymyristic acid in amide linkage.
authors.affiliation: Department of Bacteriology, Kitasato Institute, Tokyo, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Kawahara
authors.forename: U
authors.initials: U
authors.lastname: Seydel
authors.forename: M
authors.initials: M
authors.lastname: Matsuura
authors.forename: H
authors.initials: H
authors.lastname: Danbara
authors.forename: E T
authors.initials: ET
authors.lastname: Rietschel
authors.forename: U
authors.initials: U
authors.lastname: Zähringer
mesh_terms: D006028:Glycosphingolipids / Q000737:chemistry* / Q000302:isolation & purification; D006868:Hydrolysis; D007834:Lasers; D008055:Lipids / Q000032:analysis; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D008745:Methylation; D009844:Oligosaccharides / Q000737:chemistry; D011549:Pseudomonas / Q000378:metabolism*
chemical_list: D006028:Glycosphingolipids; D008055:Lipids; D009844:Oligosaccharides