Neutrophil Elastase/ELA2 Antibody (950302) [Alexa Fluor® 350]

• Reactivity: Hu
• Applications: WB, ELISA, IHC, ICC/IF
• Clone: 950302
• Clonality: Monoclonal
• Host: Mouse
• Conjugate: Alexa Fluor 350

Neutrophil Elastase/ELA2 Antibody (950302) [Alexa Fluor® 350] Summary

• Immunogen: Chinese hamster ovary cell line CHO-derived recombinant human Neutrophil Elastase/ELA2
  Met1-Asn252
  Accession # P08246
• Specificity: Detects human Neutrophil Elastase/ELA2 in direct ELISAs.
• Isotype: IgG2a
• Clonality: Monoclonal
• Host: Mouse
• Purity Statement: Protein A or G purified

Applications/Dilutions

• Dilutions:
  • ELISA
  • Immunocytochemistry
  • Immunohistochemistry
  • Western Blot

Packaging, Storage & Formulations

• Storage: Protect from light. Do not freeze. 12 months from date of receipt, 2 to 8 °C as supplied
• Buffer: Supplied 0.2mg/ml in 1X PBS with RDF1 and 0.09% 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 (950302) [Alexa Fluor® 350]

• 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.