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 dipeptide that is L-tryptophyl-L-leucinamide in which the N-terminal amino group has been converted to the corresponding (morpholin-4-yl)acetamide and in which one of the hydrogens attached to the nitrogen of the C-terminal amide has been replaced by a (1E)-5-methyl-1-(methylsulfonyl)hex-1-en-3-yl group. It is a selective proteasome inhibitor.