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|Title:||Binding of a valproate metabolite to the trifunctional protein of fatty acid oxidation.||Austin Authors:||Baldwin, Graham S;Abbott, F S;Nau, H||Affiliation:||Department of Surgery, Austin Hospital, Heidelberg, Victoria, Australia||Issue Date:||8-Apr-1996||Publication information:||Febs Letters; 384(1): 58-60||Abstract:||The anti-convulsant drug valproate causes hepatic failure in a small percentage of patients. We now report that the valproate metabolite 2,4-dien-valproate binds (IC50 = 42 microM) to the alpha-subunit of the trifunctional protein responsible for the second and third steps in the mitochondrial beta-oxidation of fatty acids. Binding of valproate itself, or of the metabolites 2-envalproate, 4-en-valproate or 3-hydroxy-4-en-valproate, is considerably weaker. We conclude that valproate-induced hepatotoxicity may be due in part to the reversible binding of the valproate metabolite 2,4-dien-valproate or its CoA ester to the alpha-subunit of the trifunctional protein with consequent inhibition of fatty acid oxidation.||Gov't Doc #:||8797803||URI:||http://ahro.austin.org.au/austinjspui/handle/1/13462||URL:||https://pubmed.ncbi.nlm.nih.gov/8797803||Type:||Journal Article||Subjects:||Animals
Mitochondrial Trifunctional Protein
Multienzyme Complexes.isolation & purification.metabolism
Valproic Acid.analogs & derivatives.metabolism.toxicity
|Appears in Collections:||Journal articles|
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