Human Myeloperoxidase/MPO Biotinylated Antibody

Catalog # Availability Size / Price Qty
BAF3174
Product Details
Citations (2)
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Human Myeloperoxidase/MPO Biotinylated Antibody Summary

Species Reactivity
Human
Specificity
Detects human Myeloperoxidase/MPO in Western blots. In Western blots, less than 20% cross-reactivity with recombinant mouse MPO and recombinant human Eosinophil Peroxidase is observed.
Source
Polyclonal Goat IgG
Purification
Antigen Affinity-purified
Immunogen
Human polymorphonuclear leukocytes Myeloperoxidase and mouse myeloma cell line NS0-derived recombinant human Myeloperoxidase/MPO
Ala49-Ser745
Accession # P05164
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
Label
Biotin

Applications

Recommended Concentration
Sample
Western Blot
0.1 µg/mL
Recombinant Human Myeloperoxidase/MPO (Catalog # 3174-MP)

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

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Preparation and Storage

Reconstitution
Reconstitute at 0.2 mg/mL in sterile PBS.
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Shipping
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: Myeloperoxidase/MPO

Myeloperoxidase (MPO) is a heme-containing enzyme belonging to the XPO subfamily of peroxidases. It is an abundant neutrophil and monocyte glycoprotein that catalyzes the hydrogen peroxide-dependent conversion of chloride, bromide, and iodide to multiple reactive species (1). Post-translational processing of MPO involves the insertion of a heme moiety and the proteolytic removal of both a propeptide and a 6 aa internal peptide (2). This results in a disulfide-linked dimer composed of a 60 kDa heavy and 12 kDa light chain that associate into a 150 kDa enzymatically active tetramer. The tetramer contains two heme groups and one disulfide bond between the heavy chains (2). Alternate splicing generates two additional isoforms of MPO, one with a 32 aa insertion in the light chain, and another with a deletion of the signal sequence and part of the propeptide (3). Human and mouse MPO share 87% aa sequence identity. MPO activity results in protein nitrosylation and the formation of 3-chlorotyrosine and dityrosine crosslinks (4‑6). Modification of ApoB100, as well as the lipid and cholesterol components of LDL and HDL, promotes the development of atherosclerosis (5, 7‑9). MPO is also associated with a variety of other diseases (1), and inhibits vasodilation in inflammation by depleting the levels of NO (10). Serum albumin functions as a carrier protein during MPO movement to the basolateral side of epithelial cells (11). MPO is stored in neutrophil azurophilic granules. Upon cellular activation, it is deposited into pathogen-containing phagosomes (2). While mice lacking MPO are impaired in clearing select microbial infections, MPO deficiency in humans does not necessarily result in heightened susceptibility to infections (12, 13).

References
  1. Klebanoff, S.J. (2005) J. Leukoc. Biol. 77:598.
  2. Hansson, M. et al. (2006) Arch. Biochem. Biophys. 445:214.
  3. Hashinaka, K. et al. (1988) Biochemistry 27:5906.
  4. van Dalen, C.J. et al. (2000) J. Biol. Chem. 275:11638.
  5. Hazen, S.L. and J.W. Heinecke (1997) J. Clin. Invest. 99:2075.
  6. Heinecke, J.W. et al. (1993) J. Clin. Invest. 91:2866.
  7. Podrez, E.A. et al. (1999) J. Clin. Invest. 103:1547.
  8. Bergt, C. et al. (2004) Proc. Natl. Acad. Sci. 101:13032.
  9. Hazen, S.L. et al. (1996) J. Biol. Chem. 271:23080.
  10. Eiserich, J.P. et al. (2002) Science 296:2391.
  11. Tiruppathi, C. et al. (2004) Proc. Natl. Acad. Sci. 101:7699.
  12. Aratani Y. et al. (2000) J. Infect. Dis. 182:1276.
  13. Kutter, D. (1998) J. Mol. Med. 76:669.
Entrez Gene IDs
4353 (Human); 17523 (Mouse); 303413 (Rat)
Alternate Names
EC 1.11.1; EC 1.11.1.7; MPO; Myeloperoxidase

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Citations for Human Myeloperoxidase/MPO Biotinylated Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

2 Citations: Showing 1 - 2
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  1. Associations of NETs with inflammatory risk and atherosclerotic severity in ST-segment elevation myocardial infarction
    Authors: J Zhou, R Chen, C Liu, P Zhou, J Li, Y Wang, X Zhao, H Zhao, L Song, H Yan
    Thrombosis Research, 2021-04-19;203(0):5-11.
    Species: Human
    Sample Types: Whole Tissue
    Applications: IHC
  2. Active von Willebrand factor predicts 28-day mortality in patients with systemic inflammatory response syndrome.
    Authors: Hyseni A, Kemperman H, de Lange D, Kesecioglu J, de Groot P, Roest M
    Blood, 2014-01-23;123(14):2153-6.
    Species: Human
    Sample Types: Plasma
    Applications: ELISA Development (Detection)

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