title: Hydroperoxyfatty acids inactivate the reticulocyte lipoxygenase independently of a hydroperoxidase reaction.
abstract: From a comparison of 9Ds-HPODE and 13Ls-HPODE and their methyl esters as substrates and inactivating agents of reticulocyte lipoxygenase it is concluded that the compounds inactivate the enzyme independently of any hydroperoxidase reaction. The protective effect of 4-nitrocatechol indicates the formation of Fe(III) complexes of the enzyme with the hydroperoxyfatty acid compounds prior to inactivation.
mesh_terms: D000693:Anaerobiosis; D000818:Animals; D002396:Catechols / Q000378:metabolism; D005290:Ferric Compounds / Q000378:metabolism; D007536:Isomerism; D019787:Linoleic Acid; D008041:Linoleic Acids / Q000378:metabolism*; D008054:Lipid Peroxides; D016859:Lipoxygenase Inhibitors; D008745:Methylation; D011817:Rabbits; D012156:Reticulocytes / Q000201:enzymology*
chemical_list: D002396:Catechols; D005290:Ferric Compounds; D008041:Linoleic Acids; D008054:Lipid Peroxides; D016859:Lipoxygenase Inhibitors; C038649:13-hydroperoxy-9,11-octadecadienoic acid; C049606:9-hydroperoxy-11,12-octadecadienoic acid; D019787:Linoleic Acid; C001833:4-nitrocatechol