Recombinant Human CXCL5/ENA-74 Protein

R&D Systems, part of Bio-Techne | Catalog # 651-NA

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Qty
Carrier Free
651-NA-025/CF
Catalog #
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Size / Price
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With Carrier
651-NA-025
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Key Product Details

  • R&D Systems E. coli-derived Recombinant Human CXCL5/ENA-74 Protein (651-NA)
  • Quality control testing to verify active proteins with lot specific assays by in-house scientists
  • All R&D Systems proteins are covered with a 100% guarantee

Source

E. coli

Accession #

P42830

Conjugate

Unconjugated

Applications

Bioactivity

View all CXCL5/ENA-74 Proteins and Enzymes »

Product Specifications

Source

E. coli-derived human CXCL5/ENA-74 protein
Ala41-Asn114

Purity

>97%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.

Endotoxin Level

<0.01 EU per 1 μg of the protein by the LAL method.

N-terminal Sequence Analysis

Ala41

Predicted Molecular Mass

8.0 kDa

Activity

Measured by its ability to induce myeloperoxidase release from cytochalasin B-treated human neutrophils. Schröder, J.M. et al. (1987) J. Immunol. 139:3474.
The ED50 for this effect is 0.5-1.5 µg/mL.

Measured by its ability to chemoattract BaF3 mouse pro-B cells transfected with human CXCR2.
The ED50 for this effect is 0.3-1.5 ng/mL.

Reviewed Applications

Read 1 review rated 5 using 651-NA in the following applications:

Formulation, Preparation and Storage

Carrier Free
What does CF mean?

CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.

What formulation is right for me?

In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.

Carrier: 651-NA
Formulation Lyophilized from a 0.2 μm filtered solution in Acetonitrile and TFA with BSA as a carrier protein.
Reconstitution Reconstitute at 25 μg/mL in sterile PBS containing at least 0.1% human or bovine serum albumin.
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.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.
Carrier Free: 651-NA/CF
Formulation Lyophilized from a 0.2 μm filtered solution in Acetonitrile and TFA.
Reconstitution Reconstitute at 100 μg/mL in sterile PBS.
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.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: CXCL5/ENA-74

CXCL5, also known as epithelial cell-derived neutrophil-activating peptide (ENA-78), is an 8 kDa proinflammatory member of the CXC subfamily of chemokines. Its Glu-Leu-Arg (ELR) motif confers angiogenic properties and distinguishes it from ELR-CXC chemokines which are angiostatic (1-3). Human CXCL5 shares 57% amino acid (aa) sequence identity with mouse and rat CXCL5. Among other human ELR+ chemokines, it shares 77% aa sequence identity with CXCL6/GCP-2 and
35%-51% with CXCL1/GRO alpha, CXCL2/GRO beta, CXCL3/GRO gamma, CXCL7/NAP-2, and CXCL8/IL-8. Inflammatory stimulation up-regulates CXCL5 production in multiple hematopoietic cell types, fibroblasts, endothelial cells, and vascular smooth muscle cells. In vivo, CXCL5 is elevated at sites of inflammation and pulmonary fibrosis where it promotes neutrophil infiltration and activation as well as angiogenesis (3-6). Its up-regulation contributes to increased vascularization, tumor growth, and metastasis in many cancers (6-9). Full length CXCL5 (78 aa) is trimmed at the N-terminal end by cathepsin G and chymotrypsin to ENA-74 (74 aa) and ENA-70 (70 aa), with the shortened forms showing increased potency relative to full length CXCL5 (10, 11). CXCL5 exerts its effects primarily through interactions with CXCR2 (6, 12). It also binds DARC, a decoy chemokine receptor which can limit CXCR2-mediated responses (13, 14).

References

  1. Strieter, R.M. et al. (2005) Cytokine Growth Factor Rev. 16:593.
  2. Balestrieri, M.L. et al. (2008) Cardiovasc. Res. 78:250.
  3. Walz, A. et al. (1991) J. Exp. Med. 174:1355.
  4. Strieter, R.M. et al. (1992) Immunol. Invest. 21:549.
  5. Koch, A.E. et al. (1994) J. Clin. Invest. 94:1012.
  6. Begley, L.A. et al. (2008) Neoplasia 10:244.
  7. Vandercappellen, J. et al. (2008) Cancer Lett. 267:226.
  8. Arenberg, D.A. et al. (1998) J. Clin. Invest. 102:465.
  9. Miyazaki, H. et al. (2006) Cancer Res. 66:4279.
  10. Wuyts, A. et al. (1999) Eur. J. Biochem. 260:421.
  11. Nufer, O. et al. (1999) Biochemistry 38:636.
  12. Ahuja, S.K. and P.M. Murphy (1996) J. Biol. Chem. 271:20545.
  13. Kashiwazaki, M. et al. (2003) Int. Immunol. 15:1219.
  14. Horton, L.W. et al. (2007) Cancer Res. 67:9791.

Alternate Names

ENA-74, ENA74

Entrez Gene IDs

6374 (Human)

Gene Symbol

CXCL5

UniProt

P42830

Additional CXCL5/ENA-74 Products

Product Documents for Recombinant Human CXCL5/ENA-74 Protein

Product Datasheets

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Note: Certificate of Analysis not available for kit components.

Download SDS 651-NA (with carrier)
Download SDS 651-NA/CF (carrier free)

Product Specific Notices for Recombinant Human CXCL5/ENA-74 Protein

For research use only

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