label: acireductone dioxygenase [iron(II)-requiring] activity
label_lc: acireductone dioxygenase [iron(ii)-requiring] activity
description: "Catalysis of the reaction: 1,2-dihydroxy-5-(methylthio)pent-1-en-3-one + O2 = 4-methylthio-2-oxobutanoate + formate + H+."