IUBMB Enzyme Nomenclature

EC 1.14.12.18

Accepted name: biphenyl 2,3-dioxygenase

Reaction: biphenyl + NADH + H+ + O2 = (1S,2R)-3-phenylcyclohexa-3,5-diene-1,2-diol + NAD+

For reaction pathway click here.

Other name(s): biphenyl dioxygenase

Systematic name: biphenyl,NADH:oxygen oxidoreductase (2,3-hydroxylating)

Comments: Requires Fe2+. The enzyme from Burkholderia fungorum LB400 (previously Pseudomonas sp.) is part of a multicomponent system composed of an NADH:ferredoxin oxidoreductase (FAD cofactor), a [2Fe-2S] Rieske-type ferredoxin, and a terminal oxygenase that contains a [2Fe-2S] Rieske-type iron-sulfur cluster and a catalytic mononuclear nonheme iron centre. Chlorine-substituted biphenyls can also act as substrates. Similar to the three-component enzyme systems EC 1.14.12.3 (benzene 1,2-dioxygenase) and EC 1.14.12.11 (toluene dioxygenase).

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, PDB, UM-BBD, CAS registry number: 103289-55-0

References:

1. Haddock, J.D. and Gibson, D.T. Purification and characterization of the oxygenase component of biphenyl 2,3-dioxygenase from Pseudomonas sp. strain LB400. J. Bacteriol. 177 (1995) 5834-5839. [PMID: 7592331]

2. Haddock, J.D., Pelletier, D.A. and Gibson, D.T. Purification and properties of ferredoxinBPH, a component of biphenyl 2,3-dioxygenase of Pseudomonas sp. strain LB400. J. Indust. Microbiol. Biotechnol. 19 (1997) 355-359. [PMID: 9451832]

3. Broadus, R.M. and Haddock, J.D. Purification and characterization of the NADH:ferredoxinBPH oxidoreductase component of biphenyl 2,3-dioxygenase from Pseudomonas sp. strain LB400. Arch. Microbiol. 170 (1998) 106-112. [PMID: 9683647]

[EC 1.14.12.18 created 2001]


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