IUBMB Enzyme Nomenclature


Accepted name: sulfoacetaldehyde dehydrogenase

Reaction: 2-sulfoacetaldehyde + H2O + NAD+ = sulfoacetate + NADH + 2 H+

Glossary: 2-sulfoacetaldehyde = 2-oxoethanesulfonate
taurine = 2-aminoethanesulfonate

Other name(s): SafD

Systematic name: 2-sulfoacetaldehyde:NAD+ oxidoreductase

Comments: This reaction is part of a bacterial pathway that can utilize the amino group of taurine as a sole source of nitrogen for growth. At physiological concentrations, NAD+ cannot be replaced by NADP+. The enzyme is specific for sulfoacetaldehyde, as formaldehyde, acetaldehyde, betaine aldehyde, propanal, glyceraldehyde, phosphonoacetaldehyde, glyoxylate, glycolaldehyde and 2-oxobutyrate are not substrates.

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


1. Krejčík, Z., Denger, K., Weinitschke, S., Hollemeyer, K., Pačes, V., Cook, A.M. and Smits, T.H.M. Sulfoacetate released during the assimilation of taurine-nitrogen by Neptuniibacter caesariensis: purification of sulfoacetaldehyde dehydrogenase. Arch. Microbiol. 190 (2008) 159-168. [PMID: 18506422]

Note For the reference an accent may not be seen. č is c-hacek.

[EC created 2008]

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