IUBMB Enzyme Nomenclature


Accepted name: D-altritol 5-dehydrogenase

Reaction: D-altritol + NAD+ = D-tagatose + NADH + H+

For diagram of reaction click here.

Systematic name: D-altritol:NAD+ 5-oxidoreductase

Comments: The enzyme, characterized in Agrobacterium fabrum C58, also has low activity with D-mannitol and D-arabinitol. It is part of a D-altritol degradation pathway.

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


1. Wichelecki, D.J., Vetting, M.W., Chou, L., Al-Obaidi, N., Bouvier, J.T., Almo, S.C. and Gerlt, J.A. ATP-binding cassette (ABC) transport system solute-binding protein-guided identification of novel D-altritol and galactitol catabolic pathways in Agrobacterium tumefaciens C58. J. Biol. Chem. 290 (2015) 28963-28976. [PMID: 26472925]

[EC created 2017]

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