表单
powder
比活
≥10 U/mg
储存温度
−20°C
InChI
1S/C9H13NO/c1-4-10-7(2)5-9(6-11)8(10)3/h5-6H,4H2,1-3H3
InChI key
NWDZDFOKSUDVJV-UHFFFAOYSA-N
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应用
Laccase is polyphenol oxidase found in many plants, fungi and microorganisms. Laccases may be useful in enzymatic biofuel systems, teeth whitening, textile dyeing, and in other applications that require the removal of oxygen . Product 51639 is from Trametes versicolor.
生化/生理作用
漆酶通过将氧还原成水来催化酚类化合物（包括木质素）的氧化。当存在介体时，漆酶还可以催化非酚类化合物的氧化。漆酶的主要功能是降解真菌中的木质素。
Laccase is a blue copper oxidase that reduces molecular oxygen to water. Laccase oxidizes polyphenols, methoxy-substituted phenols and diamines, but not tyrosine. Oxidation by laccase is an one-electron reaction that generates a free radical .
其他说明
旧命名：云芝（Coriolus versicolor）
1 U corresponds to the amount of enzyme which converts 1 μmol catechol per minute at pH 4.5 and 25°C.
C Madzak et al.
Protein engineering, design & selection : PEDS, 19(2), 77-84 (2005-12-22)
Laccases are oxidizing enzymes of interest because of their potential environmental and industrial applications. We performed site-directed mutagenesis of a laccase produced by Trametes versicolor in order to improve its catalytic properties. Considering a strong interaction of the Asp residue
The structure and function of fungal laccases
Christopher F. Thurston
Microbiology, 140, 19-26 (1994)
Ian R Wheeldon et al.
Proceedings of the National Academy of Sciences of the United States of America, 105(40), 15275-15280 (2008-10-01)
Here, we present two bifunctional protein building blocks that coassemble to form a bioelectrocatalytic hydrogel that catalyzes the reduction of dioxygen to water. One building block, a metallopolypeptide based on a previously designed triblock polypeptide, is electron-conducting. A second building
Mohammed Sherif et al.
Microbial biotechnology, 6(5), 588-597 (2013-07-03)
Multicopper oxidases can act on a broad spectrum of phenolic and non-phenolic compounds. These enzymes include laccases, which are widely distributed in plants and fungi, and were more recently identified in bacteria. Here, we present the results of biochemical and
Yu-Chan Zhang et al.
Nature biotechnology, 31(9), 848-852 (2013-07-23)
Increasing grain yields is a major focus of crop breeders around the world. Here we report that overexpression of the rice microRNA (miRNA) OsmiR397, which is naturally highly expressed in young panicles and grains, enlarges grain size and promotes panicle
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