Acireductone is oxidized to MOB Acireducone (1,2-Dihydroxy-3-oxo-5'-methylthiopentene) is oxidized using acireductone dioxygenase and dioxygen. There are two reactions possible, dependent on the metal cofactor: the alternative product 3-methylthiopropionate using nickel was confirmed in <i>Klebsiella</i>. In eukaryotes using iron(II) the result is 4-methylthio-2-oxobutanoate (MOB). (Ju et al, 2006) Authored: Stephan, R, 2010-10-24 EC Number: 1.13.11.54 Edited: Jassal, B, 2011-03-30 Pubmed17786183 Reactome Database ID Release 431237119 Reactome, http://www.reactome.org ReactomeREACT_75861 Reviewed: D'Eustachio, P, 2011-05-23