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Merck
CN

P8250

过氧化物酶 来源于辣根

Type II, essentially salt-free, lyophilized powder, 150-250 units/mg solid (using pyrogallol)

别名:

供体：过氧化氢氧化还原酶, 辣根过氧化物酶

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化学文摘社编号:
9003-99-0
eCl@ss:
32160410
UNSPSC Code:
12352204
NACRES:
NA.54
EC Number:
232-668-6
MDL number:
MFCD00071339
EC 号:
1.11.1.7 (BRENDA, IUBMB)

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产品名称

过氧化物酶 来源于辣根, Type II, essentially salt-free, lyophilized powder, 150-250 units/mg solid (using pyrogallol)

solubility

0.1 M phosphate buffer: soluble (pH 6.0)
H2O: soluble

SMILES string

[O+H2]O[O-]

InChI key

JSPLKZUTYZBBKA-UHFFFAOYSA-N

InChI

1S/H2O3/c1-3-2/h1-2H

biological source

horseradish

type

Type II

form

essentially salt-free, lyophilized powder

specific activity

150-250 units/mg solid (using pyrogallol)

mol wt

~44 kDa

absorbance ratio

RZ ≥1.8

application(s)

diagnostic assay manufacturing

storage temp.

2-8°C

Quality Level

300

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Analysis Note

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。
初步的工作表明它含有至少五种同工酶。

Application

在成熟高羊茅叶片提取物的过氧化物酶测定过程中，该酶已被用于对照。它也被用来测定H2O2 的产生。
辣根过氧化物酶（HRP）分离自辣根中（Amoracia rusticana）。 它可用于生物化学应用，如蛋白质印迹、ELISA和免疫组织化学。 辣根过氧化物酶可用于扩增弱信号并增加靶分子（例如蛋白质）的可检测性。 辣根过氧化物酶（产品P8250）已被用于研究发炎的牙龈中的非口腔抗原 和埃博拉病毒糖蛋白毒性。

Biochem/physiol Actions

HRP易与过氧化氢（H2O2）结合，所得[HRP-H2O2]复合物可以氧化各种氢供体。最适pH值为6.0-6.5，酶在5.0-9.0的pH范围内最稳定。HRP可以通过几种不同的方法与抗体结合，包括戊二醛，高碘酸盐氧化，通过二硫键，以及通过氨基和巯基定向交联剂。它比酶标记β-半乳糖苷酶和碱性磷酸酶更小且更稳定。因此，它是最理想的标签。而且，其糖基化会产生较低的非特异性结合。它还可用于在溶液中测定葡萄糖 和过氧化物 。已发现叠氮化钠、氰化物、L-胱氨酸、重铬酸盐、亚乙基硫脲、羟胺、硫化物、钒酸盐、对氨基苯甲酸、以及Cd2+、Co2+、Cu2+、Fe3+、Mn2+、Ni2+、铅2+ 等离子可抑制其酶活性。
当与底物一起孵育时，辣根过氧化物酶会产生所标记分子的有色、荧光或发光衍生物，从而实现定量。 研究已显示辣根过氧化物酶可略微降低cydAB突变体中的抑制水平。

General description

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。

Other Notes

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。
有关过氧化物酶的更多信息，请访问 www.sigma-aldrich.com/enzymeexplorer。

pictograms

Health hazard
GHS08

signalword

Danger

hcodes

H334

Hazard Classifications

Resp. Sens. 1

存储类别

13 - Non Combustible Solids

wgk

WGK 1

ppe

Eyeshields, Gloves, type N95 (US)

法规信息

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分析证书(COA)

Lot/Batch Number
0000508599
0000508587
0000508587
0000508599
0000507885

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W E Bullock et al.
The Journal of experimental medicine, 165(1), 195-210 (1987-01-01)
The principal host cell of H. capsulatum (Hc) is the M phi within which the pathogenic yeast phase of the fungus multiplies during active disease. The initial interaction between Hc yeasts and M phi therefore is a crucial step in
S M Mallison et al.
Infection and immunity, 56(4), 823-830 (1988-04-01)
In vitro experimentation indicates that periodontitis-associated bacteria contain potent polyclonal B-cell activators (PBA). We reasoned that if PBA were operative in vivo, plasma cells specific for nonoral antigens should be present in the inflamed gingival tissues, which are characterized by
Chuan Chiang-Ni et al.
Journal of microbiology, immunology, and infection = Wei mian yu gan ran za zhi, 49(6), 837-842 (2015-02-05)
The phenotypic heterogeneity of the human pathogen Streptococcus pyogenes [group A streptococcus (GAS)] is associated with bacterial virulence variation. During invasive GAS infection, mutations in the two-component regulatory system covR/covS leads to increases in hyaluronic acid capsule production, virulence genes
J W Macadam et al.
Plant physiology, 99(3), 872-878 (1992-07-01)
Cessation of cell expansion has been associated with cell wall cross-linking reactions catalyzed by peroxidase. This study utilized two genotypes of tall fescue (Festuca arundinacea Schreb.) that differ in length of the leaf elongation zone to investigate the relationship between
Nancy J Sullivan et al.
Journal of virology, 79(1), 547-553 (2004-12-15)
Ebola virus infection causes a highly lethal hemorrhagic fever syndrome associated with profound immunosuppression through its ability to induce widespread inflammation and cellular damage. Though GP, the viral envelope glycoprotein, mediates many of these effects, the molecular events that underlie
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