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.
N'-nitrosoanatabine inhibits the reaction [[CYP2A13 protein results in increased metabolism of N'-nitrosonornicotine] which results in increased abundance of 4-hydroxy-1-(3-pyridyl)-1-butanone] N'-nitrosoanatabine results in decreased activity of CYP2A13 protein