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SRE0082

Sigma-Aldrich

Peroxidase from horseradish

Synonym(s):

Peroxidase from horseradish, Donor:hydrogen-peroxide oxidoreductase, Horseradish peroxidase

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About This Item

CAS Number:
Enzyme Commission number:
EC Number:
MDL number:
UNSPSC Code:
12352204
NACRES:
NA.54

description

For research or further manufacturing use only. Not intended for direct use in humans or animals. Non-TSCA use only in US.

Quality Level

specific activity

≥250 units/mg solid (using pyrogallol)

shipped in

wet ice

storage temp.

2-8°C

InChI

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

InChI key

JSPLKZUTYZBBKA-UHFFFAOYSA-N

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General description

Horseradish peroxidase is isolated from horseradish roots (Amoracia rusticana) and belongs to the ferroprotoporphyrin group of peroxidases. HRP is a single chain polypeptide containing four disulfide bridges. It is a glycoprotein containing 18% carbohydrate. The carbohydrate composition consists of galactose, arabinose, xylose, fucose, mannose, mannosamine, and galactosamine depending upon the specific isozyme. Its molecular weight (~44 kDa) includes the polypeptide chain (33,890 Daltons), hemin plus Ca2+ (~700 Daltons), and carbohydrate (~9,400 Daltons). At least seven isozymes of HRP exist. The isoelectric point for horseradish peroxidase isozymes ranges from 3.0 - 9.0.

Application

Peroxidase from horseradish has been used in western blotting.

Unit Definition

One pyrogallol unit will form 1.0 mg purpurogallin from pyrogallol in 20 sec at pH 6.0 at 20 °C.

Analysis Note

The RZ (Reinheitszahl) is the absorbance ratio A403/A275 determined at 0.5-1.0 mg/ml in deionized water. It is a measure of hemin content, not enzymatic activity. Even preparations with high RZ may have low enzymatic activity.

Other Notes

View more information on peroxidase at www.sigma-aldrich.com/enzymeexplorer.

pictograms

Health hazard

signalword

Danger

hcodes

Hazard Classifications

Resp. Sens. 1

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1


Certificates of Analysis (COA)

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Yonghao Sun et al.
Experimental and therapeutic medicine, 14(2), 1809-1817 (2017-08-16)
The aim of the present study was to investigate the inhibitory effect of compound cantharides capsules (CCCs) on the viability and apoptosis of human gastric cancer cell lines, BGC-823 and SGC-7901, and to detect its regulation of gene expression levels
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Sun Y, et al.
Experimental and Therapeutic Medicine, 14(2), 1809-1817 (2017)
Leilei Bao et al.
Scientific reports, 12(1), 10693-10693 (2022-07-02)
Infectious diseases are among the leading causes of mortality worldwide. A new coronavirus named severe acute respiratory syndrome corona virus 2 (SARS-CoV-2) was identified in Wuhan, China in 2019, and the World Health Organization (WHO) declared its outbreak, coronavirus disease

Articles

Horseradish peroxidase (HRP) is an enzyme used for detecting molecules, degrading toxins, cross-linking proteins, and in diagnostics like lateral flow assays.

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