The Enzyme Database

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Accepted name: alkanesulfonate monooxygenase
Reaction: an alkanesulfonate + FMNH2 + O2 = an aldehyde + FMN + sulfite + H2O
Glossary: an alkanesulfonate = R-CH2-SO3-
an aldehyde = R-CHO
Other name(s): SsuD; sulfate starvation-induced protein 6; alkanesulfonate,reduced-FMN:oxygen oxidoreductase
Systematic name: alkanesulfonate,FMNH2:oxygen oxidoreductase
Comments: The enzyme from Escherichia coli catalyses the desulfonation of a wide range of aliphatic sulfonates (unsubstituted C1- to C14-sulfonates as well as substituted C2-sulfonates). Does not desulfonate taurine (2-aminoethanesulfonate) or aromatic sulfonates. Does not use FMN as a bound cofactor. Instead, it uses reduced FMN (i.e., FMNH2) as a substrate. FMNH2 is provided by SsuE, the associated FMN reductase (EC
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB, CAS registry number: 256383-67-2
1.  Eichhorn, E., van der Ploeg, J.R. and Leisinger, T. Characterization of a two-component alkanesulfonate monooxygenase from Escherichia coli. J. Biol. Chem. 274 (1999) 26639–26646. [PMID: 10480865]
[EC created 2002]

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