Dictionary » L » Laccase




A copper-containing oxidoreductase enzyme that catalyzes the oxidation of phenols and other related substances.


This enzyme is found in many plants, fungi and microorganisms. It catalyzes the oxidation of certain phenol derivatives to quinones. For instance, it catalyzes the oxidation of 4-benzenediol to 4-benzosemiquinone.

It is involved in lignin degradation, pigment biosynthesis and detoxification of lignin-derived products.

Molecular formula: C44H69N11O20


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I need help on information on cellulase, peroxidase, laccase, amylase and chitinase. Such as the structure and the importance, and how to screen them in actinomycets. Recommended websites will be much deeply appreciated.

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by fishbonedoris
Thu Jan 11, 2007 6:22 am
Forum: Cell Biology
Topic: Enzymes
Replies: 4
Views: 1710

The Fiber Disease

... of the central nervous system, responsible for 5–10% lethal infections in patients with immunodeficiency syndromes. C. neoformans ex- presses laccase which produces melanin precursors from tyrosine, DOPA, and catecholamines, abundant in the host organism . However, the nature of the pigment ...

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by Nadas Moksha
Thu Oct 26, 2006 3:39 pm
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 6245304

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