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A 17beta-hydroxy steroid that is 17beta-estradiol in the the hydrogen at the 11beta position has been replaced by a p-({5-[(4,4,5,5,5-pentafluoropentyl)sulfonyl]pentyl}oxy)phenyl group. RU 58668 is a pure anti-estrogen that downregulates estrogen receptor expression (IC50 = 0.04 nM).
RU 58668 results in increased expression of CYP1A1 mRNA [RU 58668 results in increased activity of AHR protein] which results in increased expression of CYP1A1 mRNA; RU 58668 inhibits the reaction [Tetrachlorodibenzodioxin results in increased activity of CYP1A1 protein]
RU 58668 inhibits the reaction [Estradiol results in increased activity of ESR1 protein]; RU 58668 promotes the reaction [fulvestrant inhibits the reaction [Genistein results in increased activity of ESR1 protein]]; RU 58668 results in decreased stability of and results in decreased expression of ESR1 protein