ExplorEnz: EC 1.10.3.2

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1.10.3.2

Accepted name:

laccase

Reaction:

4 benzenediol + O₂ = 4 benzosemiquinone + 2 H₂O

Other name(s):

urishiol oxidase; urushiol oxidase; p-diphenol oxidase

Systematic name:

benzenediol:oxygen oxidoreductase

Comments:

A group of multi-copper proteins of low specificity acting on both o- and p-quinols, and often acting also on aminophenols and phenylenediamine. The semiquinone may react further either enzymically or non-enzymically.

Links to other databases:

BRENDA, EAWAG-BBD, EXPASY, KEGG, MetaCyc, PDB, CAS registry number: 80498-15-3

References:

1.	Dawson, C.R. and Tarpley, W.B. The copper oxidases. In: Sumner, J.B. and Myrbäck, K. (Ed.), The Enzymes, 1st edn, vol. 2, Academic Press, New York, 1951, pp. 454–498.
2.	Keilin, D. and Mann, T. Laccase, a blue copper-protein oxidase from the latex of Rhus succedanea. Nature (Lond.) 143 (1939) 23–24.
3.	Malmström, B.G., Andréasson, L.-E. and Reinhammar, B. Copper-containing oxidases and superoxide dismutase. In: Boyer, P.D. (Ed.), The Enzymes, 3rd edn, vol. 12, Academic Press, New York, 1975, pp. 507–579.
4.	Mayer, A.M. and Harel, E. Polyphenol oxidases in plants. Phytochemistry 18 (1979) 193–215.
5.	Nakamura, T. Purification and physico-chemical properties of laccase. Biochim. Biophys. Acta 30 (1958) 44–52. [DOI] [PMID: 13584395]
6.	Nakamura, T. Stoichiometric studies on the action of laccase. Biochim. Biophys. Acta 30 (1958) 538–542. [DOI] [PMID: 13618260]
7.	Peisach, J. and Levine, W.G. A comparison of the enzymic activities of pig ceruloplasmin and Rhus vernicifera laccase. J. Biol. Chem. 240 (1965) 2284–2289. [PMID: 14304827]
8.	Reinhammar, B. and Malmström, B.G. "Blue" copper-containing oxidases. In: Spiro, T.G. (Ed.), Copper Proteins, Copper Proteins, New York, 1981, pp. 109–149.

[EC 1.10.3.2 created 1961, deleted 1972, reinstated 1978]