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一般描述
吡喃糖氧化酶(P20)，是由共价结合的黄素腺嘌呤二核苷酸组成的同型四聚体蛋白质，主要存在于担子菌类木材腐朽菌中。
应用
吡喃糖氧化酶（来源于云芝）已用于D-葡萄糖(DG)的酶法氧化。它还可作为氧清除系统(OSS)组分以延长荧光团寿命。
生化/生理作用
吡喃糖氧化酶(P2O)催化吡喃醛糖C-2位氧化成为相应的2-酮醛糖。吡喃糖氧化酶的体内底物据认为是D-葡萄糖、D-半乳糖和D-木糖。 它们可分别被氧化成为2-酮基-D-葡萄糖（D-阿拉伯-己-2-酮糖，2-脱氢-D-葡萄糖）、2-酮基-D-半乳糖（D-来苏型-己-2-酮糖，2-脱水-D-半乳糖）和2-酮基-D-木糖（D-苏型-戊-2-酮糖，2-脱水-D-木糖）。吡喃糖氧化酶对L-山梨糖、D-葡萄糖酸-1,5-内酯和D-阿洛糖等糖类有显著活性。 当吡喃糖氧化酶催化吡喃醛糖的氧化时，电子转移到分子氧上，从而形成过氧化氢。
吡喃糖氧化酶(P2O)在临床化学中可用于测定1,5-脱水-d-葡萄糖醇标志物，用于糖尿病患者的血糖控制。
单位定义
一个单位在 37°C，pH7.0 下每分钟产生 1.0μ 摩尔过氧化氢。
其他说明
含谷氨酸
警示用语：
Danger
危险声明
预防措施声明
危险分类
Resp. Sens. 1
储存分类代码
11 - Combustible Solids
WGK
WGK 1
闪点(°F)
Not applicable
闪点(°C)
Not applicable
法规信息
常规特殊物品
历史批次信息供参考:
分析证书(COA)
Lot/Batch Number
Mor R Alkaslasi et al.
Nature communications, 12(1), 2471-2471 (2021-05-02)
In vertebrates, motor control relies on cholinergic neurons in the spinal cord that have been extensively studied over the past hundred years, yet the full heterogeneity of these neurons and their different functional roles in the adult remain to be
Purification and characterization of pyranose oxidase from the white rot fungus Trametes multicolor.
C Leitner et al.
Applied and environmental microbiology, 67(8), 3636-3644 (2001-07-27)
We purified an intracellular pyranose oxidase from mycelial extracts of the white rot fungus Trametes multicolor by using ammonium sulfate fractionation, hydrophobic interaction, ion-exchange chromatography, and gel filtration. The native enzyme has a molecular mass of 270 kDa as determined
Tien-Chye Tan et al.
Journal of molecular biology, 409(4), 588-600 (2011-04-26)
Trametes multicolor pyranose 2-oxidase (P2O) is a flavoprotein oxidase that oxidizes d-glucose at C2 to 2-keto-d-glucose by a highly regioselective mechanism. In this work, fluorinated sugar substrates were used as mechanistic probes to investigate the basis of regioselectivity in P2O.
Wouter Van Hecke et al.
Bioresource technology, 100(23), 5566-5573 (2009-07-15)
The interactions between two oxidoreductases coupled by an artificial redox mediator have been described quantitatively to increase both stability and productivity. In this cascade oxidation, pyranose 2-oxidase oxidizes several aldoses at the C-2 position to 2-ketoaldoses. A redox mediator is
Oliver Spadiut et al.
The FEBS journal, 277(13), 2892-2909 (2010-06-10)
Pyranose 2-oxidase from Trametes multicolor is a 270 kDa homotetrameric enzyme that participates in lignocellulose degradation by wood-rotting fungi and oxidizes a variety of aldopyranoses present in lignocellulose to 2-ketoaldoses. The active site in pyranose 2-oxidase is gated by a
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