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The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at The data is made available under the Creative Commons License (CC 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.

Term:topoisomerase II inhibitor
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Accession:CHEBI:156203 term browser browse the term

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  CHEBI ontology 19785
    role 19732
      biological role 19732
        biochemical role 19281
          enzyme inhibitor 18148
            EC 5.* (isomerase) inhibitor 6622
              EC 5.99.* (other isomerases) inhibitor 6439
                EC 5.99.1.* (miscellaneous isomerase) inhibitor 6439
                  topoisomerase inhibitor 6439
                    topoisomerase II inhibitor 0
                      amrubicin + 0
                      amrubicinol 0
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RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.