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.
An angucycline antibiotic that is 3,4,4a,12b-tetrahydrotetraphene-1,7,12(2H)-trione substituted by hydroxy groups at positions 4a, 8 and 12b and a methyl group at position 3. It is isolated from the culture broth of Amycolatopsis sp.MJ950-89F4 and exhibits a broad spectrum of antibacterial potential.