fpsyg.2016.00640

Neutrophil Elastase/ELA2 Antibody (950317) [Alexa Fluor® 750] Summary

    Immunogen
    Chinese hamster ovary cell line CHO-derived recombinant human ELA2
    Met1-Asn252
    Accession # P08246
    Specificity
    Detects human ELA2 in direct ELISAs and Western blots.
    Isotype
    IgG1
    Clonality
    Monoclonal
    Host
    Mouse
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Applications/Dilutions

    Dilutions
        Intracellular Staining by Flow Cytometry 0.25-1 ug/10^6 cells

Packaging, Storage & Formulations

    Storage
    Store the unopened product at 2 – 8 °C. Do not use past expiration date.
    Buffer
    Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Neutrophil Elastase/ELA2 Antibody (950317) [Alexa Fluor® 750]

      Bone marrow serine protease
      EC 3.4.21
      EC 3.4.21.37
      ELA2
      ELA2granulocyte-derived elastase
      ELANE
      elastase 2, neutrophil
      elastase, neutrophil expressed
      Elastase-2
      GE
      HLEelastase-2
      HNE
      Human leukocyte elastase
      Leukocyte Elastase
      Medullasin
      NE
      Neutrophil Elastase
      PMN elastase
      PMN-E
      polymorphonuclear elastase
      SCN1

Background

Neutrophil Elastase (ELA2, ELANE), also known as HNE, is a chymotrypsin family serine protease that plays a key role in pathogen clearance (1-3). It is expressed by promyelocytes and stored in the intracellular azurophilic granules of polymorphonuclear leukocytes (PMN) (4). These granules fuse with phagosomes, enabling Neutrophil Elastase to participate in the digestion and killing of endocytosed microbes. The enzyme is released by activated neutrophils at sites of inflammation, and it can remain associated with the cell surface or function as a component of neutrophil extracellular nets (NETs) which trap and kill microbial pathogens (5, 6). It also can degrade multiple extracellular matrix proteins including Elastin and Fibronectin (5). In the lung, this activity contributes to pathology in emphysema, cystic fibrosis, and adult respiratory distress syndrome (ARDS) (1). Neutrophil Elastase can be inhibited by Serpin A1/alpha 1-Antitrypsin, SLPI, Serpin B1, and
Trappin-2/Elafin (7-11). Its activity in the lung is increased by exposure to tobacco smoke which inactivates Serpin A1 through methionine oxidation (12). Mature human Neutrophil Elastase shares 73% amino acid sequence identity with mouse and rat Neutrophil Elastase (13, 14). Multiple mutations in the human ELANE gene are causative of severe congenital and cyclic neutropenias (15).

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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