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Myeloperoxidase/MPO Activity Assay Kit (Colorimetric), Novus Biologicals

Bio-Techne includes Novus Biologicals | Catalog # NBP3-24523

Catalog #
Size / Price

Key Product Details

Sample Type & Volume Required Per Well

Serum, plasma, milk, animal tissue and cell samples


4.9 U/L

Assay Range

4.9 - 196.7 U/L

Product Specifications

Kit Type

Activity Assay Kit (Colorimetric)


Non-species specific


Detection instrument: Spectrophotometer (460 nm)
Assay time: 90 min


Intra-Assay Precision (Precision within an assay) %CV < 4.5

Inter-Assay Precision (Precision between assays) %CV < 9.8

Recovery for Myeloperoxidase/MPO Activity Assay Kit (Colorimetric)


Average recovery rate: 104%

Scientific Data Images for Myeloperoxidase/MPO Activity Assay Kit (Colorimetric)

Myeloperoxidase/MPO Activity Assay Kit (Colorimetric)

Myeloperoxidase/MPO Activity Assay Kit (Colorimetric) [NBP3-24523] -

Myeloperoxidase/MPO Activity Assay Kit (Colorimetric) [NBP3-24523] - Assay Example

Kit Contents for Myeloperoxidase/MPO Activity Assay Kit (Colorimetric)

  • Reagent 1: Buffer Solution
  • Reagent 2: Powder A
  • Reagent 3: Powder B
  • Reagent 4: Saline Solution
  • Reagent 5: Clarificant
  • Reagent 6: Powder C
  • Reagent 7: Substrate
  • Reagent 8: Acid Reagent

Preparation and Storage


The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Storage of components varies. See protocol for specific instructions.

Background: Myeloperoxidase/MPO

FUNCTION: Part of the host defense system of polymorphonuclear leukocytes. It is responsible for microbicidal activity against a wide range of organisms. In the stimulated PMN, MPO catalyzes the production of hypohalous acids, primarily hypochlorous acid in physiologic situations, and other toxic intermediates that greatly enhance PMN microbicidal activity. MPO is an important marker for myeloid cells, from the promyelocyte stage and to the mature forms. CATALYTIC ACTIVITY: Donor + H2O2 = oxidized donor + 2 H2O. CATALYTIC ACTIVITY: Cl- + H2O2 = HOCl + 2 H2O. COFACTOR: Binds 1 calcium ion per heterodimer. COFACTOR: Binds 1 heme B (iron-protoporphyrin IX) group covalently per heterodimer. SUBUNIT: Tetramer of two light chains and two heavy chains. SUBCELLULAR LOCATION: Lysosome. ALTERNATIVE PRODUCTS: 3 named isoforms produced by alternative splicing. DISEASE: Defects in MPO are the cause of myeloperoxidase deficiency (MPD). MPD is an autosomal recessive defect that results in disseminated candidiasis. SIMILARITY: Belongs to the peroxidase family. XPO subfamily.

Alternate Names


Gene Symbol


Additional Myeloperoxidase/MPO Products

Product Documents for Myeloperoxidase/MPO Activity Assay Kit (Colorimetric)

Certificate of Analysis

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Product Specific Notices for Myeloperoxidase/MPO Activity Assay Kit (Colorimetric)

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Kits are guaranteed for 6 months from date of receipt.