1.13.11.60 additional information not inhibited by 1 mM KCN. CO does not inhibit the enzyme 2 1.13.11.60 additional information catalysis declines due to suicide inactivation; catalysis declines due to suicide inactivation. Following column chromatography, e.g. ion exchange or zinc-affinity chromatography, hydroperoxide isomerase activity is often decreased and sometimes even undetectable by TLC, whereas 8-dioxygenase activity is always present. However, storage of the enzyme for a few days on ice often restores the hydroperoxide isomerase and appeares to increase the 7,8-linoleate diol synthase activity as well 2 1.13.11.60 additional information GSH (1 mM), GSSG (1 mM), EDTA (1 or 10 mM), EGTA (1 or 10 mM) and H202 (10 mM) are without effect on the 8R-dioxygenase 2 1.13.11.60 additional information sorbitol (0.75 M, 14%), glycerol (15%) and ethylene glycol (25%) do not inhibit the enzyme 2 1.13.11.60 additional information suicide inactivation, activity falls to zero within a few min although substrates were available in sufficient amounts 2 1.13.11.60 dithiothreitol - 45 1.13.11.60 Triton X-100 0.5%, inactivation 61 1.13.11.60 1,10-phenanthroline 2.5 mM, 50% inhibition 62 1.13.11.60 2-mercaptoethanol - 63 1.13.11.60 glycine 2% 72