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Catalog # HM2164

MPO, Human, mAb 266-6K1


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The monoclonal antibody 266-6K1 recognizes human myeloperoxidase (MPO), an ~135 glycoprotein
expressed in all cells of the myeloid linage. MPO functions as an α2β2 heteromultimer consisting of
two heavy (α) and two light (β) chains of 55 and 15 kDa respectively. MPO is abundantly present in
azurophilic granules of polymorphonuclear neutrophils (PMNs). It is an important enzyme used during
phagocytic lysis of engulfed foreign particles which takes part in the defense of the organism through
production of hypochlorous acid (HOCl), a potent oxidant. 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. Upon activation of neutrophils, MPO can
be rapidly released and as such useful in body fluids as marker for inflammatory status.
Involvement of MPO has been described in numerous diseases such as atherosclerosis, lung cancer,
Alzheimer’s disease, inflammatory bowel disease and multiple sclerosis. Autoimmune antibodies to
MPO (so called ANCA) are involved in Wegener’s disease. Since the discovery of MPO deficiency,
initially regarded as rare and restricted to patients suffering from severe infections, MPO has attracted
more clinical attention.

Immuno assays, Western blot

Application Notes
W: Samples were subjected to SDS-PAGE and transferred to PVDF membrane (Ref.1).
IA: The antibody can be used as coat and detector.

For Western blotting and immunohistology dilutions to be used depend on detection system applied. It is recommended that users test the reagent and determine their own optimal dilutions. The typical starting working dilution is 1:50.

Positive Control
Neutrophils, HL-60 cells

Product type
Monoclonal antibodies
100 µg, 20 µg, 500 µg
Quantities >500 µg will be send without preservative and carrier free. Quantities <500 µg will be send with preservative and carrier. exact formulation can be found on the datasheet.
Mouse IgG1
Storage and stability
Product should be stored at 4°C. Under recommended storage conditions, product is stable for one year.
For research use only. Not for use in or on humans or animals or for diagnostics. It is the responsibility of the user to comply with all local/state and Federal rules in the use of this product. Hycult Biotech is not responsible for any patent infringements that might result with the use of or derivation of this product.
Cardiology and metabolism, Pulmonology

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