The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at http://www.ebi.ac.uk/chebi/. The data is made available under the Creative Commons License (CC BY 3.0, http://creativecommons.org/licenses/by/3.0/). For more information see: Degtyarenko et al. (2008) ChEBI: a database and ontology for chemical entities of biological interest. Nucleic Acids Res. 36, D344–D350.
A mixture of glycosphingolipids isolated from the Gram-negative lipopolysaccharide-free bacterium Sphingomonoas paucimobilis. The components all contain a tetrasaccharide unit, alpha-D-Man-(1->2)-alpha-D-Gal-(1->6)-alpha-D-GlcN-(1->4)-alpha-D-GlcA, attached to a 3-hydroxy-2-{[(2S)-2-hydroxytetradecanoyl]amino}alkyl lipid portion.