Anti-Eosinophil Peroxidase Antibody, clone AHE-1

Eosinophil peroxidase (UniProt: P11678; also known as EC:1.11.1.7, EPO, EPX) is encoded by the EPX (also known as EPER, EPO, EPP) gene (Gene ID: 8288) in human. Eosinophil peroxidase is an enzyme found in cytoplasmic granules of eosinophils. It mediates tyrosine nitration of secondary granule proteins in mature resting eosinophils. It is synthesized with a signal peptide (aa 1-17) and a propeptide (aa 18-139), which are subsequently cleaved off to produce the mature form that can be cleaved into a light chain (aa 140-250) and a heavy chain (aa 251-715). These chains can assemble to for a tetrameric structure. It is a heme-containing enzyme that physically associates with fibrous tissue and cancer tissue in various organs. It contains well-conserved profibrogenic capacity to stimulate the migration of fibroblastic cells and promote their ability to secrete collagenous proteins to generate a functional extracellular matrix (ECM) both in vitro and in vivo. It plays a role in regulating the recruitment of fibroblast and the biosynthesis of collagen ECM at sites of normal tissue repair and fibrosis. It is a key participant in generation of reactive oxidants and diffusible radical species by the phagocytes. It serves as a potent toxin towards invading parasites and the surrounding tissues. It also displays significant inhibitory activity towards Mycobacterium tuberculosis H37Rv by inducing bacterial fragmentation and lysis. (Ref.: DeNichilo, MO., et al. (2015). Am. J. Pathol. 185(5); 1372-1384; Mitra, SN., et al. (2000). Redox Rep. 5(4); 215-224).

Human Eosinophils from a patient with hypereosinophilic syndrome.

Quality Control Applications

Evaluated by Immunofluorescence in frozen Human colon tissue sections.

Immunofluorescence Analysis: A 1:50 dilution of this antibody detected Eosinophil Peroxidase in frozen Human colon tissue sections.

Tested applications

Immunofluorescence Analysis: A representative lot detected Eosinophil Peroxidase in Immunofluorescence applications (DeNichilo, M.O., et al. (2015). Am J Pathol. 185(5); 1372-84; Song, Y., et al. (2013). ISRN Inflamm. 2013; 907821).

Immunohistochemistry Applications: A representative lot detected Eosinophil Peroxidase in Immunohistochemistry applications (Spang, C., et al. (2017). J Musculoskelet Neuronal Interact. 17(3); 226-236; Song, Y., et al. (2013). ISRN Inflamm. 2013; 907821; Song, Y., et al. (2013). BMC Musculoskelet Disord. 14:; 34; Song, Y., et al. (2012). PLoS One ;7(12); e52230).

Immunocytochemistry Analysis: A representative lot detected Eosinophil Peroxidase in Immunocytochemistry applications (DeNichilo, M.O., et al. (2015). Am J Pathol. 185(5); 1372-84).

Note: Actual optimal working dilutions must be determined by end user as specimens, and experimental conditions may vary with the end user.

Clone AHE-1 is a mouse monoclonal antibody that detects Eosinophil Peroxidase.

Purified mouse monoclonal antibody IgG1 in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.

Recommended storage: +2°C to +8°C.

Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.

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