Recombinant Human IL-36 alpha/IL-1F6 (aa 6-158) Protein

(2 citations)   
  • Purity
    >95%, 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.
  • Activity
    Measured by its ability to induce IL-8 secretion in A431 human epithelial carcinoma cells. The ED50 for this effect is 4-24 ng/mL.
  • Source
    E. coli-derived Lys6-Phe158
  • Accession #
  • N-terminal Sequence
    Analysis
    Lys6
  • Structure / Form
    Monomer
  • Predicted Molecular Mass
    17 kDa
  • SDS-PAGE
    16 kDa, reducing conditions
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.
6995-IL
 
6995-IL/CF
Formulation Lyophilized from a 0.2 μm filtered solution in Tris, NaCl, TCEP, EDTA and Tween® 20 with BSA as a carrier protein.
Formulation Lyophilized from a 0.2 μm filtered solution in Tris, NaCl, TCEP, EDTA and Tween® 20 with Trehalose.
Reconstitution Reconstitute at 100 μg/mL in Water.
Reconstitution Reconstitute at 100 μg/mL in Water.
Shipping The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
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 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.
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.
Data Images
Recombinant Human IL-36 alpha/IL-1F6 (Catalog # 6995-IL) induces IL-8 secretion in A431 human epithelial carcinoma cells. The ED50 for this effect is 4-24 ng/mL.

1 μg/lane of Recombinant Human IL‑36 alpha /IL‑1F6 (aa 6-158) was resolved with SDS-PAGE under reducing (R) conditions and visualized by silver staining, showing a single band at 16 kDa.

Background: IL-36 alpha/IL-1F6

Human IL-36 alpha, previously called IL-1F6 and FIL1 epsilon  (family of IL-1 member epsilon), is a member of the IL-1 family which includes IL-1 beta, IL-1 alpha, IL-1ra, IL-18, and novel family members IL-36 Ra (IL-1F5), IL-36 beta (IL-1F8), IL-36 gamma (IL-1F9), IL-37 (IL-1F7) and IL‑38 (IL‑1F10) (1‑4). All family members show a 12  beta ‑strand, beta -trefoil configuration, and are believed to have arisen from a common ancestral gene (1, 2). IL-36 alpha is an 18‑22 kDa, 158 amino acid (aa) intracellular and secreted protein that contains no signal sequence, no prosegment and no potential from N‑linked glycosylation sites (1‑3). It can be released in response to LPS and the cell ATP‑induced activation of the P2X7 receptor (5). A 120 aa isoform missing aa 1‑38 has been reported (6). Human IL‑36 alpha (aa 6 ‑ 158) shares 57‑68% aa sequence identity with mouse, rabbit, equine and bovine IL‑36 alpha and 27‑57% aa sequence identity with other novel IL‑1 family members. IL‑36 alpha is mainly found in skin and lymphoid tissues, but also in fetal brain, trachea, stomach and intestine (1, 3, 7). It is expressed by monocytes, B and T cells (1, 2). The receptor for IL‑36 alpha is a combination of IL‑1 Rrp2 (also called IL1RL2 or IL‑1 R6), mainly found in epithelia and keratinocytes, and the widely expressed IL‑1 RAcP (3, 7). IL-36 alpha, beta, and gamma all activate NF-kappa B and MAPK pathways in an IL‑1 Rrp2 dependent manner, and induce production of inflammatory cytokines and chemokines such as CXCL8/IL-8 (7). IL-36 alpha and other family members are overexpressed in psoriatic skin lesions, and transgenic overexpression of IL‑36 alpha in skin keratinocytes produces epidermal hyperplasia (7‑9). IL-36 alpha is present in kidney tubule epithelia, and it is highly expressed in intubulointerstitial lesions in mouse models of chronic glomerulonephritis, lupus nephritis and diabetic nephritis (10).

  • References:
    1. Smith, D.E. et al. (2000) J. Biol. Chem. 275:1169.
    2. Dunn, E. et al. (2001) Trends Immunol. 22:533.
    3. Barksby, H.E. et al. (2007) Clin. Exp. Immunol. 149:217.
    4. Dinarello, C. et al. (2010) Nat. Immunol. 11:973.
    5. Martin, U. et al. (2009) J. Immunol. 183:4021.
    6. Entrez Accession # EAW73614.
    7. Towne, J.E. et al. (2004) J. Biol. Chem. 279:13677.
    8. Blumberg, H. et al. (2010) J. Immunol. 185:4354.
    9. Johnston, A. et al. (2011) J. Immunol. 186:2613.
    10. Ichii, O. et al. (2010) Lab. Invest. 90:459.
  • Long Name:
    Interleukin 36 alpha/Interleukin 1 Family 6
  • Entrez Gene IDs:
    27179 (Human); 54448 (Mouse)
  • Alternate Names:
    FIL1 epsilon; FIL1; FIL1(EPSILON); FIL1E; IL-1 epsilon; IL1(EPSILON); IL1E; IL-1E; IL-1F6 (FIL-1-epsilon); IL1F6; IL-1F6; IL36 alpha; IL-36 alpha; IL36A; interleukin 1 family, member 6 (epsilon); interleukin 1, epsilon; Interleukin 36, Alpha; Interleukin-1 epsilon; interleukin-1 family member 6; Interleukin-36 Alpha
Related Research Areas
Citations:

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

2 Citations: Showing 1 - 2
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Species
Applications
Sample Type
  1. Structural and functional attributes of the Interleukin-36 receptor
    Authors: Guanghui Yi
    J Biol Chem, 2016;0(0):.
    Species: Human
    Sample Type: Whole Cells
    Application: Bioassay
  2. Signal Transduction and Intracellular Trafficking by the Interleukin 36 Receptor.
    Authors: Saha S, Singh D, Raymond E, Ganesan R, Caviness G, Grimaldi C, Woska J, Mennerich D, Brown S, Mbow M, Kao C
    J Biol Chem, 2015;290(39):23997-4006.
    Species: Human
    Sample Type: Whole Cells
    Application: Bioassay

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