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一般描述
辣根过氧化物酶是从辣根（Amoracia rusticana）中分离出来的，属于过氧化物酶的铁原卟啉基团。HRP是含有四个二硫键的单链多肽。它是一种含有18%碳水化合物的糖蛋白。碳水化合物由半乳糖、阿拉伯糖、木糖、岩藻糖、甘露糖、甘露糖胺和半乳糖胺组成，具体取决于特定同工酶。其分子量（约44 kDa）包括多肽链（33,890道尔顿）、氯化血红素加Ca2+ （约700道尔顿）和碳水化合物（约9,400道尔顿）。至少存在7种HRP同工酶。 辣根过氧化物酶同工酶的等电点范围为3.0-9.0。
应用
辣根过氧化物酶已被用于脱氢聚合物 (DHP) 的研究，以研究单寡聚物偶联机制。 它还被用来通过创建辣根过氧化物酶模拟DNAzyme来帮助开发用于microRNA（miRNA）检测的比色方法。
生化/生理作用
已证明辣根过氧化物酶可催化多种物质的聚合，包括对乙酰氨基酚和腰果酚。
注意
在低 pH 值和较高温度下保持活性。
单位定义
一个连苯三酚单元将在20℃、pH 6.0条件下，在20秒内从连苯三酚形成1.0mg的红棓酚。
制备说明
通过伯胺的化学保护而保持稳定。
分析说明
RZ(Reinheitszahl)是指溶于去离子水中的酶(0.5–1.0 mg/ml)的吸光度比值A403/A275 。 它是血红素含量的量度，而不是酶活性。 即使是RZ值较高的制剂也可能具有较低的酶活性。
其他说明
有关过氧化物酶的更多信息，请访问 www.sigma-aldrich.com/enzymeexplorer。
底物
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说明
价格
抑制剂
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警示用语：
Danger
危险声明
危险分类
Resp. Sens. 1
WGK
WGK 1
个人防护装备
Eyeshields, Gloves, type N95 (US)
法规信息
动植物源性产品
Keehoon Won et al.
Biomacromolecules, 5(1), 1-4 (2004-01-13)
Horseradish peroxidase-catalyzed polymerization of cardanol in aqueous organic solvent was investigated in the presence of a redox mediator. Cardanol is a phenol derivative from a renewable resource mainly having a C15 unsaturated hydrocarbon chain with mostly 1-3 double bonds at
Yanqin Wen et al.
Analytical chemistry, 84(18), 7664-7669 (2012-08-30)
We present a highly sensitive colorimetric method for microRNA (miRNA) detection. This method is based on a rolling-circle amplification (RCA) DNA machine, which integrates RCA, nicking enzyme signal amplification and DNAzyme signal amplification. The DNA machine is triggered by the
D W Potter et al.
Molecular pharmacology, 29(2), 155-162 (1986-02-01)
Horseradish peroxidase catalyzed the polymerization of acetaminophen. Addition of reduced glutathione (GSH) to reaction mixtures resulted in decreased polymerization and formation of minor amounts of GSH-acetaminophen conjugates. The conjugates were identified as 3-(glutathion-S-yl)acetaminophen and 3-(glutathion-S-yl)diacetaminophen. Horseradish peroxidase also catalyzed polymerization
Sun-Joo Moon et al.
Phytochemistry, 82, 15-21 (2012-08-14)
In this study, dehydrogenative polymers (DHP) were synthesized in vitro through dehydrogenative polymerization using different ratios of coniferyl alcohol (CA) and sinapyl alcohol (SA) (10:0, 8:2, 6:4, 2:8, 0:10), in order to investigate the monolignol coupling mechanism in the presence
Jianjun Guo et al.
Journal of experimental botany, 60(13), 3819-3833 (2009-07-09)
Receptor for Activated C Kinase 1 (RACK1) is viewed as a versatile scaffold protein in mammals. The protein sequence of RACK1 is highly conserved in eukaryotes. However, the function of RACK1 in plants remains poorly understood. Accumulating evidence suggested that
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Discover our peroxidase from horseradish enzymes, products, substrates, and inhibitors for your ELISA, immunoassay, and protein application needs.
实验方案
Reinheitszahl (RZ) is the ratio of absorbance due to hemin (A403, Soret region) to absorbance due to protein (A275).
To standardize a procedure for the assay of Peroxidase using 2,2'-Azino-bis(3-Ethylbenzthiazoline-6-Sulfonic Acid) as a substrate.
This procedure is for the determination of Peroxidase enzymatic activity using Pyrogallol as the substrate.
该实验程序用于使用连苯三酚作为底物测定过氧化物酶的酶活性。
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