IUBMB Enzyme Nomenclature


Accepted name: 2-aminobenzenesulfonate 2,3-dioxygenase

Reaction: 2-aminobenzenesulfonate + NADH + H+ + O2 = 2,3-dihydroxybenzenesulfonate + NH3 + NAD+

For diagram click here.

Other name(s): 2-aminosulfobenzene 2,3-dioxygenase

Systematic name: 2-aminobenzenesulfonate,NADH:oxygen oxidoreductase (2,3-hydroxylating, ammonia-forming)

Links to other databases: BRENDA, EAWAG-BBD, EXPASY, KEGG, Metacyc, CAS registry number: 156621-16-8


1. Junker, F., Field, J.A., Bangerter, F., Ramsteiner, K., Kohler, H.-P., Joannou, C.L., Mason, J.R., Leisinger, T. and Cook, A.M. Dioxygenation and spontaneous deamination of 2-aminobenzene sulphonic acid in Alcaligenes sp. strain O-1 with subsequent meta ring cleavage and spontaneous desulphonation to 2-hydroxymuconic acid. Biochem. J. 300 (1994) 429-436. [PMID: 8002948]

2. Junker, F., Leisinger, T. and Cook, A.M. 3-Sulphocatechol dioxygenase and other dioxygenases ( and 1.14.12.-) in the degradative pathways of 2-aminobenzenesulphonic, benzenesulphonic and 4-toluenesulphonic acids in Alcaligenes sp. strain O-1. J. Gen. Microbiol. 140 (1994) 1713-1722. [PMID: 8075807]

[EC created 1999]

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