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Difference between revisions of "Horseradish peroxidase"

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'''HRP: Horseradish peroxidase''' (peroxidase from horseradish Type II, essentially salt-free, lyophilized powder, 150-250 units/mg solid); Sigma P 8250, store at 4 ยฐC
'''HRP: Horseradish peroxidase''' (peroxidase from horseradish Type II, essentially salt-free, lyophilized powder, 150-250 units/mg solid); Sigma P 8250, store at 4 ยฐC


== Application in [[fluorometry]]ย  ==
[[Amplex_red|Measurement of H<sub>2</sub>O<sub>2</sub> with Amplex Red]]





Revision as of 12:41, 6 March 2014


high-resolution terminology - matching measurements at high-resolution


Horseradish peroxidase

Description

Horseradish peroxidase readily combines with hydrogen peroxide (H2O2) and the resultant [HRP-H2O2] complex can oxidize a wide variety of hydrogen donors.

Abbreviation: HRP


MitoPedia methods: Fluorometry 



Application in HRR

HRP: Horseradish peroxidase (peroxidase from horseradish Type II, essentially salt-free, lyophilized powder, 150-250 units/mg solid); Sigma P 8250, store at 4 ยฐC

Application in fluorometry

Measurement of H2O2 with Amplex Red


Reaction

Donor + H2O2 โ†’ Oxidized Donor + 2 H2O

Known Inhibitors

according to Sigma-Adrich, citing [1]: sodium azide, cyanide, L-cystine,dichromate, ethylenethiourea, hydroxylamine, sulfide, vanadate, p-aminobenzoic acid, and Cd2+, Co2+, Cu2+, Fe3+, Mn2+, Ni2+, and Pb2+ ions.


Comment

The use of horseradish peroxidase Typ II in fluorometric measurement of peroxide production was recommended by Laszlo Tretter.

References

  1. โ†‘ Zollner H (1993) Handbook of Enzyme Inhibitors, 2nd Ed., Part A: 367-368.