Recombinant Human IL-17A/F Heterodimer Biotinylated Protein

Name: Recombinant Human IL-17A/F Heterodimer Biotinylated Protein
Brand: R&D Systems
SKU: BT5837
Price: 686 USD
Availability: InStock

R&D Systems | Catalog # BT5837

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Product Specifications
Scientific Data
Preparation & Storage
Calculators
Background
Product Documents
Specific Notices
Research Areas

Key Product Details

R&D Systems CHO-derived Recombinant Human IL-17A/F Heterodimer Biotinylated Protein (BT5837)
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

CHO

Structure / Form

Disulfide-linked heterodimer, Biotinylated via sugars

Conjugate

Biotin

Applications

Bioactivity

View all IL-17A/F Heterodimer Proteins and Enzymes »

Product Specifications

Source

Chinese Hamster Ovary cell line, CHO-derived human IL-17A/F Heterodimer protein

Human IL-17A (Gly24-Ala155) Accession # Q16552
Human IL-17F (Arg21-GLN163) Accession # Q96PD4
N-terminus		C-terminus

Purity

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

Endotoxin Level

<1.0 EU per 1 μg of the protein by the LAL method.

N-terminal Sequence Analysis

Gly24(IL-17A) & Arg21(IL-17F)

Predicted Molecular Mass

15 kDa (unlabeled IL-17A), 15 kDa (unlabeled IL-17F)

Activity

Measured by its ability to induce IL-6 secretion by NIH‑3T3 mouse embryonic fibroblast cells.
The ED₅₀ for this effect is 0.4‑2 ng/mL.

Scientific Data Images for Recombinant Human IL-17A/F Heterodimer Biotinylated Protein

Recombinant Human IL-17A/F Heterodimer Biotinylated Protein Bioactivity

Both Biotinylated Recombinant Human IL-17A/F (Catalog # BT5837) and unlabeled Recombinant Human IL-17A/F Heterodimer (Catalog # 5837-IL) induces IL-6 secretion by NIH-3T3 mouse embryonic fibroblast cells. The ED₅₀ for this effect is 0.4-2 ng/mL. The similarity in activity highlights that the biotinylated protein is fully functional.

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: BT5837

Formulation	Lyophilized from a 0.2 μm filtered solution in HCl with BSA as a carrier protein.
Reconstitution	Reconstitute at 100 μg/mL in 4 mM HCl 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: BT5837/CF

Formulation	Lyophilized from a 0.2 μm filtered solution in HCl with Trehalose.
Reconstitution	Reconstitute at 100 μg/mL in 4 mM HCl.
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.

Calculators

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.

Volume (to add to vial)

Mass (in vial)

Desired Reconstitution Concentration

Background: IL-17A/F Heterodimer

Human IL-17A/F is an approximately 40 kDa, secreted, disulfide-linked heterodimeric glycoprotein comprised of two members of the IL-17 family of cytokines, IL-17A and IL-17F (1, 2). Members of this family demonstrate a structural motif termed a cysteine knot that also characterizes a large superfamily of growth factors. Although most cysteine knot superfamily members use three intrachain disulfide bonds to create a knot, IL-17 family molecules generate the same structural form with only two disulfide links (3-5). Mature human IL-17A and IL-17F share 61% and 56% amino acid sequence identity with mouse IL-17A and IL-17F, respectively. They share 50% aa sequence identity with each other. IL-17A/F and the IL-17A and IL-17F homodimers are produced by IL-23 activated Th17 cells (1, 6-10). The widely expressed receptors IL-17 RA and IL-17 RC form a heterodimer for the binding of IL-17A and IL-17F, as well as the heterodimeric IL-17A/F (6, 11, 12). IL-17A/F is a biologically active protein that induces chemokine production and airway neutrophilia with intermediate potency between IL-17A (most potent) and IL-17F (least potent) (7, 12). It is up-regulated in immune cells during inflammatory arthritis and contributes to disease severity (13).

References

Wright, J.F. et al. (2007) J. Biol. Chem. 282:13447.
Chang, S.H. and C. Dong (2007) Cell Res. 17:435.
Kawaguchi, M. et al. (2004) J. Allergy Clin. Immunol. 114:1265.
Kolls, J.K. and A. Linden (2004) Immunity 21:467.
Gu, C. et al. (2013) Cytokine 64:477.
Cheung, P.F.Y. et al. (2008) J. Immunol. 180:5625.
Liang, S.C. et al. (2007) J. Immunol. 179:7791.
Ouyang, W. et al. (2008) Immunity 28:454.
Steinman, L. (2007) Nat. Med. 13:139.
Hunter, C.A. (2005) Nat. Rev. Immunol. 5:521.
Kuestner, R.E. et al. (2007) J. Immunol. 179:5462.
Wright, J.F. et al. (2008) J. Immunol. 181:2799.
Sarkar, S. et al. (2014) Clin. Exp. Immunol. 177:652.

Long Name

Interleukin 17 A/F

Alternate Names

CTLA8, CTLA8cytotoxic T-lymphocyte-associated serine esterase 8, Cytotoxic T-lymphocyte-associated antigen 8, Cytotoxic T-Lymphocyte-Associated Protein 8, IL17, IL-17, IL-17A, interleukin 17 (cytotoxic T-lymphocyte-associated serine esterase 8), interleukin 17A, interleukin-17A