IUBMB Enzyme Nomenclature


Accepted name: 3-deoxy-α-D-manno-octulosonate 8-oxidase

Reaction: 3-deoxy-α-D-manno-octulopyranosonate + O2 = 3,8-dideoxy-8-oxo-α-D-manno-octulosonate + H2O2

Glossary: 3-deoxy-α-D-manno-octulosonate = Kdo
3,8-dideoxy-8-oxo-α-D-manno-octulosonate = (2R,4R,5R,6S)-2,4,5-trihydroxy-6-[(1S)-1-hydroxy-2-oxoethyl]oxane-2-carboxylate

Other name(s): kdnB (gene name)

Systematic name: 3-deoxy-α-D-manno-octulopyranosonate:oxygen 8-oxidoreductase

Comments: The enzyme, characterized from the bacterium Shewanella oneidensis, is involved in the formation of 8-amino-3,8-dideoxy-α-D-manno-octulosonate, an aminated form of Kdo found in lipopolysaccharides of members of the Shewanella genus. cf. EC, 8-amino-3,8-dideoxy-α-D-manno-octulosonate transaminase.

Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB, CAS registry number:


1. Gattis, S.G., Chung, H.S., Trent, M.S. and Raetz, C.R. The origin of 8-amino-3,8-dideoxy-D-manno-octulosonic acid (Kdo8N) in the lipopolysaccharide of Shewanella oneidensis. J. Biol. Chem. 288 (2013) 9216-9225. [PMID: 23413030]

[EC created 2015]

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