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- Laccase abstract "Laccases (EC 1.10.3.2) are copper-containing oxidase enzymes that are found in many plants, fungi, and microorganisms. The copper is bound in several sites; Type 1, Type 2, and/or Type 3. The ensemble of types 2 and 3 copper is called a trinuclear cluster (see figure). Type 1 copper is available to action of solvents, such as water. It can be displaced by mercury, substituted by cobalt or removed via a copper complexone. Removal of type 1 copper causes a decrease in laccase activity. Cyanide can remove all copper from the enzyme however re-embedding with type 1 and type 2 copper has been shown to be impossible. Type 3 copper however can be embed back into the enzyme. Laccases act on phenols and similar molecules, performing a one-electron oxidations, which remain poorly defined. It is proposed that laccases play a role in the formation of lignin by promoting the oxidative coupling of monolignols, a family of naturally occurring phenols. Laccases can be polymeric, and the enzymatically active form can be a dimer or trimer. Other laccases, such as ones produced by the fungus Pleurotus ostreatus, play a role in the degradation of lignin, and can therefore be included in the broad category of ligninases.Because laccase belongs to the oxidase enzyme family it requires oxygen as a second substrate for the enzymatic action.Spectrophotometry can be used to detect laccases, using the substrates ABTS, syringaldazine, 2,6-dimethoxyphenol, and dimethyl-p-phenylenediamine. Activity can also be monitored with an oxygen sensor, as the oxidation of the substrate is paired with the reduction of oxygen to water. Laccase was first studied by Gabriel Bertrand in 1894in Chinese lacquer tree sap, where it serves in the formation of lacquer (hence the name "laccase").Laccase is able to catalyze ring cleavage of aromatic compounds.".
- Laccase ecNumber "1.10.3.2".
- Laccase thumbnail Cu3Im8laccase.png?width=300.
- Laccase wikiPageExternalLink enzyme.php?ecno=1.10.3.2.
- Laccase wikiPageID "6664738".
- Laccase wikiPageLength "9677".
- Laccase wikiPageOutDegree "30".
- Laccase wikiPageRevisionID "677837275".
- Laccase wikiPageWikiLink 2,6-dimethoxyphenol.
- Laccase wikiPageWikiLink ABTS.
- Laccase wikiPageWikiLink Apple_juice.
- Laccase wikiPageWikiLink Beer.
- Laccase wikiPageWikiLink Bioremediation.
- Laccase wikiPageWikiLink Category:Copper_enzymes.
- Laccase wikiPageWikiLink Category:EC_1.10.3.
- Laccase wikiPageWikiLink Category:Natural_phenols_metabolism.
- Laccase wikiPageWikiLink Category:Proteins.
- Laccase wikiPageWikiLink Chinese_lacquer_tree.
- Laccase wikiPageWikiLink Dimethyl-4-phenylenediamine.
- Laccase wikiPageWikiLink Dimethyl-p-phenylenediamine.
- Laccase wikiPageWikiLink Enzymatic_Biofuel_Cells.
- Laccase wikiPageWikiLink Enzymatic_biofuel_cell.
- Laccase wikiPageWikiLink Enzyme.
- Laccase wikiPageWikiLink Finishing_(textiles).
- Laccase wikiPageWikiLink Gabriel_Bertrand.
- Laccase wikiPageWikiLink Grape.
- Laccase wikiPageWikiLink Grape_juice.
- Laccase wikiPageWikiLink Lacquer.
- Laccase wikiPageWikiLink Lignin.
- Laccase wikiPageWikiLink Ligninase.
- Laccase wikiPageWikiLink Monolignol.
- Laccase wikiPageWikiLink Natural_phenol.
- Laccase wikiPageWikiLink Oxidase.
- Laccase wikiPageWikiLink Oxidation.
- Laccase wikiPageWikiLink Oxygen_sensor.
- Laccase wikiPageWikiLink Phenol.
- Laccase wikiPageWikiLink Phenols.
- Laccase wikiPageWikiLink Pleurotus_ostreatus.
- Laccase wikiPageWikiLink Polyphenol.
- Laccase wikiPageWikiLink Redox.
- Laccase wikiPageWikiLink Spectrophotometer.
- Laccase wikiPageWikiLink Spectrophotometry.
- Laccase wikiPageWikiLink Syringol.
- Laccase wikiPageWikiLink Textile_finishing.
- Laccase wikiPageWikiLink Toxicodendron_vernicifluum.
- Laccase wikiPageWikiLink File:Cu3Im8laccase.png.
- Laccase wikiPageWikiLinkText "Laccase".
- Laccase wikiPageWikiLinkText "laccase".
- Laccase casNumber "80498".
- Laccase ecNumber "1.1".
- Laccase goCode "52716".
- Laccase hasPhotoCollection Laccase.
- Laccase iubmbEcNumber "1".
- Laccase name "Laccase".
- Laccase wikiPageUsesTemplate Template:Diphenol_family_oxidoreductases.
- Laccase wikiPageUsesTemplate Template:EC_number.
- Laccase wikiPageUsesTemplate Template:Infobox_enzyme.
- Laccase wikiPageUsesTemplate Template:MeshName.
- Laccase wikiPageUsesTemplate Template:Reflist.
- Laccase subject Category:Copper_enzymes.
- Laccase subject Category:EC_1.10.3.
- Laccase subject Category:Natural_phenols_metabolism.
- Laccase subject Category:Proteins.
- Laccase hypernym Enzymes.
- Laccase type Biomolecule.
- Laccase type Enzyme.
- Laccase type Biomolecule.
- Laccase type Nutrient.
- Laccase type Thing.
- Laccase type Q206229.
- Laccase type Q8047.
- Laccase comment "Laccases (EC 1.10.3.2) are copper-containing oxidase enzymes that are found in many plants, fungi, and microorganisms. The copper is bound in several sites; Type 1, Type 2, and/or Type 3. The ensemble of types 2 and 3 copper is called a trinuclear cluster (see figure). Type 1 copper is available to action of solvents, such as water. It can be displaced by mercury, substituted by cobalt or removed via a copper complexone. Removal of type 1 copper causes a decrease in laccase activity.".
- Laccase label "Laccase".
- Laccase sameAs Laccase.
- Laccase sameAs Lacasas.
- Laccase sameAs Laccase.
- Laccase sameAs Lakase.
- Laccase sameAs Laccasi.
- Laccase sameAs ラッカーゼ.
- Laccase sameAs Laccase.
- Laccase sameAs Lacase.
- Laccase sameAs m.0ggl5z.
- Laccase sameAs Лакказа.
- Laccase sameAs Lakaza.
- Laccase sameAs Lakaza.
- Laccase sameAs Lackas.
- Laccase sameAs Q423733.
- Laccase sameAs Q423733.
- Laccase wasDerivedFrom Laccase?oldid=677837275.
- Laccase depiction Cu3Im8laccase.png.
- Laccase isPrimaryTopicOf Laccase.
- Laccase name "Laccase".