Human Neutrophil Elastase/ELA2 Antibody

Catalog # Availability Size / Price Qty
MAB91673-100
MAB91673-SP
Detection  of Neutrophil Elastase/ELA2 in THP‑1 Human Cell Line by Flow  Cytometry.
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Human Neutrophil Elastase/ELA2 Antibody Summary

Species Reactivity
Human
Specificity
Detects human Elastase/ELA-2 in direct ELISAs.
Source
Monoclonal Mouse IgG1 Clone # 950312
Purification
Protein A or G purified from hybridoma culture supernatant
Immunogen
Chinese hamster ovary cell line CHO-derived recombinant human Elastase/ELA-2
Met1-Asn252
Accession # P08246
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
Label
Unconjugated

Applications

Recommended Concentration
Sample
ELISA

This antibody functions as an ELISA capture antibody when paired with Mouse Anti-Human Neutrophil Elastase/ELA2 Monoclonal Antibody (Catalog # MAB91672).

This product is intended for assay development on various assay platforms requiring antibody pairs. We recommend the Human Neutrophil Elastase/ELA2 DuoSet ELISA Kit (Catalog # DY9167-05) for convenient development of a sandwich ELISA.

 
CyTOF-ready
Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.
 
Intracellular Staining by Flow Cytometry
0.25 µg/106 cells
See below

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.

Data Examples

Intracellular Staining by Flow Cytometry Detection  of Neutrophil Elastase/ELA2 in THP‑1 Human Cell Line by Flow  Cytometry. View Larger

Detection of Neutrophil Elastase/ELA2 in THP‑1 Human Cell Line by Flow Cytometry. THP‑1 human acute monocytic leukemia cell line was stained with Mouse Anti-Human Neutrophil Elastase/ELA2 Monoclonal Antibody (Catalog # MAB91673, filled histogram) or isotype control antibody (Catalog # MAB002, open histogram), followed by Phycoerythrin-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # F0102B). To facilitate intracellular staining, cells were fixed with Flow Cytometry Fixation Buffer (Catalog # FC004) and permeabilized with Flow Cytometry Permeabilization/Wash Buffer I(Catalog # FC005).View our protocol for Staining Intracellular Molecules.

Human Neutrophil Elastase/ELA2 ELISA Standard Curve. Recombinant Human Neutrophil Elastase/ELA2 protein was serially diluted 2-fold and captured by Mouse Anti-Human Neutrophil Elastase/ELA2 Monoclonal Antibody (Catalog # MAB91673) coated on a Clear Polystyrene Microplate (Catalog # DY990). Mouse Anti-Human Neutrophil Elastase/ELA2 Monoclonal Antibody was biotinylated and incubated with the protein captured on the plate. Detection of the standard curve was achieved by incubating Streptavidin-HRP (Catalog # DY998) followed by Substrate Solution (Catalog # DY999) and stopping the enzymatic reaction with Stop Solution (Catalog # DY994).

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Preparation and Storage

Reconstitution
Reconstitute at 0.5 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Availability
Size / Price
Qty
RB01
Shipping
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
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: Neutrophil Elastase/ELA2

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).

References
  1. Korkmaz, B. et al. (2010) Pharmacol. Rev. 62:726.
  2. Stein, R.L. et al. (1987) Biochemistry 26:1301.
  3. Bachovchin, W.W. (1986) Biochemistry 25:7751.
  4. Garwicz, D. et al. (2005) Haematologica 90:38.
  5. Owen, C.A. et al. (1995) J. Cell Biol. 131:775.
  6. Stephan, A. and M. Fabri (2015) Exp. Dermatol. 24:161.
  7. Carrell, R.W. et al. (1982) Nature 298:329.
  8. Rice, W.G. and S.J. Weiss (1990) Science 249:178.
  9. Thompson, R.C. et al. (1986) Proc. Natl. Acad. Sci. USA 83:6692.
  10. Cooley, J. et al. (2001) Biochemistry 40:15762.
  11. Wiedow, O. et al. (1990) J. Biol. Chem. 265:14791.
  12. Taggart, C. et al. (2000) J. Biol. Chem. 275:27258.
  13. Sinha, S. et al. (1987) Proc. Natl. Acad. Sci. USA 84:2228.
  14. Okano, K. et al. (1987) J. Biochem. 102:13.
  15. Makaryan, V. et al. (2015) Curr. Opin. Hematol. 22:3.
Entrez Gene IDs
1991 (Human); 50701 (Mouse)
Alternate Names
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

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Isotype Controls

Reconstitution Buffers

Secondary Antibodies

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