IUBMB Enzyme Nomenclature


Accepted name: chlorite O2-lyase

Reaction: chloride + O2 = chlorite

Other name(s): [chlorite dismutase]

Systematic name: chloride:oxygen oxidoreductase

Comments: Reaction occurs in the reverse direction in chlorate- and perchlorate-reducing bacteria. There is no activity when chlorite is replaced by hydrogen peroxide, perchlorate, chlorate or nitrite. The term 'chlorite dismutase' is misleading as the reaction does not involve dismutation/disproportionation. Contains iron and protoheme IX.

Links to other databases: BRENDA, EAWAG-BBD, EXPASY, KEGG, Metacyc, PDB, CAS registry number:


1. van Ginkel, C.G., Rikken, G.B., Kron, A.G.M. and Kengen, S.W.M. Purification and characterization of chlorite dismutase: a novel oxygen-generating enzyme. Arch. Microbiol. 166 (1996) 321-326. [PMID: 8929278]

2. Stenklo, K., Thorell, H.D., Bergius, H., Aasa, R. and Nilsson, T. Chlorite dismutase from Ideonella dechloratans. J. Biol. Inorg. Chem. 6 (2001) 601-607. [PMID: 11472023]

[EC created 2001]

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