Myeloperoxidase (MPO) Peroxidation Activity Assay Kit

Highly Sensitive Assay, HTS
Catalog #: K747 | abID: ab273334

Product Details

abID ab273334
Cat # +Size K747-100
Size 100 assays
Detection Method Fluorescence (Ex/Em 535/587 nm)
Applications Measurement of MPO activity in various tissues/cells
Screening MPO inhibitors for drug development
Features & Benefits • Quick and Easy protocol
• Includes specific MPO Inhibitor [4-Aminobenzonic Hydrazide] to delineate MPO activity from total peroxidase activity in the sample.
• Highly Sensitive assay for measuring MPO less than 2 μU per well
Kit Components • MPO Assay Buffer
• MPO Peroxidation Substrate (in DMSO)
• Hydrogen Peroxide (0.88 M)
• Resorufin Standard (5 mM in DMSO)
• MPO Positive Control
• MPO Inhibitor (4-Aminobenzoic Hydrazide, in DMSO)
Storage Conditions -20°C
Shipping Conditions Gel Pack
USAGE For Research Use Only! Not For Use in Humans.


Myeloperoxidase (MPO: EC is a peroxidase abundantly expressed in neutrophil granulocytes. It catalyzes the hydrogen peroxide (H2O2) dependent oxidation of chloride anions (Cl-) to generate hypochlorite (HClO). During respiratory burst, neutrophils utilize MPO activity to exhibit cytotoxicity against tumor cells and pathogenic microorganisms. MPO also oxidizes various substances such as phenols and anilines, which can lead to inflammation. Increased MPO levels are associated with an increased risk of cardiovascular disease and myocardial infarction. Thus measurement of MPO peroxidation activity is crucial for disease prediction and therapeutics. BioVision’s Myeloperoxidase (MPO) Peroxidation Activity Assay Kit, oxidizes a substrate to generate fluorescence (Ex/Em = 535/587 nm), which is directly proportional to total peroxidase activity in the sample. A specific MPO inhibitor is provided, which suppresses peroxidase activity due to MPO. This permits differentiation of MPO-mediated peroxidation from the activity of other peroxidases which may be present in the samples. Our kit provides a sensitive, quick and easy method for detecting MPO activity. The assay is high-throughput adaptable and can detect less than 2 µU of MPO activity.

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Can we use frozen samples with this assay?
We would recommend using fresh samples. However, frozen samples can be used too provided they have not undergone multiple freeze thaw cycles.
Can the kit work on bacteria or yeast cells?
The kit has been standardized for mammalian cells only.
What is the exact volume of sample required for this assay?
There is no specific volume we can recommend for the amount any sample to be used since it is completely sample concentration and quality based. You have to do a pilot expt with multiple sample volumes to determine the optimal volume which gives a reading within the linear range of the standard curve. Please refer to the citations for this product to see what other clients have used with similar sample types.
Do you have trial sizes of this kit?
Unfortunately, we do not have trial sizes of this kit available. However, if you are based in the US or Canada, we will give you a 10% off list price introductory discount on its purchase price. If you are based out of this area please contact your regional BioVision distributor.
What is the shelf life of this kit?
BioVisions’s assay kits expire 6-12 months from the date of shipment. Some components of the kit may expire sooner as mentioned in the data sheet.
Can we purchase individual components of this kit?
Yes, you can purchase any of the kit's components without the whole kit. Please refer to the component Cat #s mentioned on the datasheet for ordering.
Can we use an alternate buffer for sample preparation (cell lysis, sample dilutions etc)?
Our assay buffers are optimized for the reactions they are designed for. They not only contain some detergents for efficient lysis of your cells/tissue, but also contain some proprietary components required for the further reactions. Therefore, we highly recommend using the buffers provided in the kit for the best results.
Li Wei. Silencing of lncRNA MALAT1 Prevents Inflammatory Injury after Lung Transplant Ischemia-Reperfusion by Downregulation of IL-8 via p300. Mol Ther Nucleic Acids May-19. 31604167.
For more citations of this product click here