- Catalog number
- PDEP100007-01
- Size / count
- 20 µg
- Dry ice
- No
- Hazardous
- No
- Discontinued
- No
- Background
- 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. 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. Soluble forms of IL-6 R alpha are generated by both alternative splicing and proteolytic cleavage. 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. 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. 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. 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. IL-6 can also function as an anti-inflammatory molecule, as in skeletal muscle where it is secreted in response to exercise. In addition, it enhances hematopoietic stem cell proliferation and the differentiation of Th17 cells, memory B cells, and plasma cells.
- Abbreviation
- IL-6
- Synonyms
- MGI; IFNB; IL1F; POIL; IFN-β; Aldesleukin; B-Cell Differentiation Factor (BCDF) ; BSF2; BSF-2; catabolin; CDF; HGF; HPGF; HSF; IFNB2; IFN-β2; IL1B; IL1B1; IL1-BETA; IL1F2; IL2; Lymphokine; MGI-2; POIL2; T-cell Growth Factor (TCGF) ; TCGF; Interleukin-6; IL6; IL-6; Interleukin 6
- UniProt
- P26893
- Accession Number
- P26893
- Expression System
- E.coli
- Tag
- N-His
- Sequence
- Pro 29-Met 212
- Field of Research
- Cancer; Metabolism; Immunology; Neuroscience
- Endotoxin
- < 10 EU/mg of the protein as determined by the LAL method.
- Purity
- > 95% as determined by reducing SDS-PAGE.
- Bioactivity
- Not validated for activity
- Reconstitution
- It is recommended that sterile water be added to the vial to prepare a stock solution of 0.5 mg/mL. Concentration is measured by UV-Vis.
- Shipping Conditions
- This product is provided as lyophilized powder which is shipped with ice packs.
- Storage Conditions
- Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80°C. Reconstituted protein solution can be stored at 4-8°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.
- Calculated Molecular Weight
- 20.1 kDa
- Observed Molecular Weight
- 25 kDa
- Species
- Porcine