Recombinant Human IL-6 (HEK293-expressed) Biotin Protein

R&D Systems, part of Bio-Techne | Catalog # BT7270

R&D Systems, part of Bio-Techne
Discontinued Product
BT7270 has been discontinued. An alternative/replacement product is available: BT7270B. View all IL-6 products.

Key Product Details

Source

HEK293

Accession #

P05231.1

Structure / Form

Biotinylated protein via sugars

Conjugate

Biotin

Applications

Binding Activity, Bioactivity

View all IL-6 Proteins and Enzymes »

Product Specifications

Source

Human embryonic kidney cell, HEK293-derived human IL-6 protein
Val30-Met212

Purity

>90%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.

Endotoxin Level

<0.10 EU per 1 μg of the protein by the LAL method.

N-terminal Sequence Analysis

Ala28 & Val30

Predicted Molecular Mass

21 kDa (unlabeled)

SDS-PAGE

21-24 kDa, reducing conditions

Activity

Measured by its binding ability in a functional ELISA.
When Recombinant Human IL‑6 R alpha (Catalog # 227-SR/CF) is immobilized at 1 µg/mL (100 µL/well), Biotinylated Recombinant Human IL‑6 binds with an ED50 of 5-30 ng/mL.

Measured in a cell proliferation assay using T1165.85.2.1 mouse plasmacytoma cells. Nordan, R.P. et al. (1987) J. Immunol. 139:813.
The ED50 for this effect is 0.2-1.2 ng/mL.

Scientific Data Images for Recombinant Human IL-6 (HEK293-expressed) Biotin Protein

Recombinant Human IL-6 (HEK293-expressed) Biotin Protein Binding Activity

Recombinant Human IL-6 (HEK293-expressed) Biotin Protein Binding Activity

When Recombinant Human IL-6 Ra (Catalog # 227-SR/CF) is immobilized at 1 µg/mL (100 µL/well), Biotinylated Recombinant Human IL-6 (Catalog # BT7270) binds with an ED50 of 5-30 ng/mL.

Formulation, Preparation and Storage

BT7270
Formulation Lyophilized from a 0.2 μm filtered solution in PBS and NaCl with Trehalose and with BSA as a carrier protein.
Reconstitution Reconstitute at 500 μg/mL in water.
Shipping The product is shipped with polar packs. 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 week, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, -70 °C under sterile conditions after reconstitution.

Background: IL-6

Interleukin-6 (IL-6) is a pleiotropic, alpha-helical, 22-28 kDa phosphorylated and variably glycosylated cytokine that plays important roles in the acute phase reaction, inflammation, hematopoiesis, bone metabolism, and cancer progression (1-5). Mature human IL-6 is 183 amino acids (aa) in length and shares 39% aa sequence identity with mouse and rat IL-6 (6). Alternative splicing generates several isoforms with internal deletions, some of which exhibit antagonistic properties (7-10). IL-6 induces signaling through a cell surface heterodimeric receptor complex composed of a ligand binding subunit (IL-6 R alpha) and a signal transducing subunit (gp130). IL-6 binds to IL-6 R alpha, triggering IL-6 R alpha association with gp130 and gp130 dimerization (11). gp130 is also a component of the receptors for CLC, CNTF, CT-1, IL-11, IL-27, LIF, and OSM (12). Soluble forms of IL-6 R alpha are generated by both alternative splicing and proteolytic cleavage (5). In a mechanism known as trans-signaling, complexes of soluble IL-6 and IL-6 R alpha elicit responses from gp130-expressing cells that lack cell surface IL-6 R alpha (5). Trans-signaling enables a wider range of cell types to respond to IL-6, as the expression of gp130 is ubiquitous, while that of IL-6 R alpha is predominantly restricted to hepatocytes, monocytes, and resting lymphocytes (2, 5). Soluble splice forms of gp130 block trans-signaling from IL-6/IL-6 R alpha but not from other cytokines that use gp130 as a co-receptor (5, 13). IL-6, along with TNF-alpha and IL-1, drives the acute inflammatory response and the transition from acute inflammation to either acquired immunity or chronic inflammatory disease (1-5). When dysregulated, it contributes to chronic inflammation in obesity, insulin resistance, inflammatory bowel disease, arthritis, sepsis, and atherosclerosis (1, 2, 5). IL-6 can also function as an anti-inflammatory molecule, as in skeletal muscle where it is secreted in response to exercise (2). In addition, it enhances hematopoietic stem cell proliferation and the differentiation of Th17 cells, memory B cells, and plasma cells (1, 14).

References

  1. Mansell, A. and B.J. Jenkins (2013) Cytokine Growth Factor Rev. 24:249.
  2. Schuett, H. et al. (2009) Thromb. Haemost. 102:215.
  3. Erta, M. et al. (2012) Int. J. Biol. Sci. 8:1254.
  4. Garbers, C. et al. (2012) Cytokine Growth Factor Rev. 23:85.
  5. Mihara, M. et al. (2012) Clin. Sci. (Lond.) 122:143.
  6. Hirano, T. et al. (1986) Nature 324:73.
  7. Kestler, D.P. et al. (1995) Blood 86:4559.
  8. Kestler, D.P. et al. (1999) Am. J. Hematol. 61:169.
  9. Bihl, M.P. et al. (2002) Am. J. Respir. Cell Mol. Biol. 27:48.
  10. Alberti, L. et al. (2005) Cancer Res. 65:2.
  11. Murakami, M. et al. (1993) Science 260:1808.
  12. Muller-Newen, G. (2003) Sci. STKE 2003:PE40.
  13. Mitsuyama, K. et al. (2006) Clin. Exp. Immunol. 143:125.
  14. Cerutti, A. et al. (1998) J. Immunol. 160:2145.

Long Name

Interleukin 6

Alternate Names

BSF-2, BSF2, IFNB2, IL6, MGI-2A

Entrez Gene IDs

3569 (Human); 16193 (Mouse); 24498 (Rat); 399500 (Porcine); 280826 (Bovine); 403985 (Canine); 102138971 (Cynomolgus Monkey); 100034196 (Equine); 493687 (Feline); 463288 (Primate); 100008733 (Rabbit)

Gene Symbol

IL6

UniProt

P05231.1

Additional IL-6 Products

Product Documents for Recombinant Human IL-6 (HEK293-expressed) Biotin Protein

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