Recombinant Human IL-17A/F Heterodimer (CHO-expressed), CF

Catalog # Availability Size / Price Qty
R&D Systems Recombinant Proteins and Enzymes
1 Image
Product Details
Citations (1)
Reviews (2)

Recombinant Human IL-17A/F Heterodimer (CHO-expressed), CF Summary

Product Specifications

>95%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Endotoxin Level
<1.0 EU per 1 μg of the protein by the LAL method.
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.
Chinese Hamster Ovary cell line, CHO-derived human IL-17A/F Heterodimer protein
Human IL-17A
Accession # Q16552
Human IL-17F
Accession # Q96PD4
N-terminus C-terminus
N-terminal Sequence
Gly24 (IL-17A) & Arg21 (IL-17F)
Structure / Form
Disulfide-linked heterodimer
Predicted Molecular Mass
15.1 kDa (IL-17A) & 14.9 kDa (IL-17F)
20 & 16 kDa, reducing conditions

Complete Your Research

Product Datasheets

You must select a language.



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.


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

Reconstitution Calculator

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.


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).

  1. Wright, J.F. et al. (2007) J. Biol. Chem. 282:13447.
  2. Chang, S.H. and C. Dong (2007) Cell Res. 17:435.
  3. Kawaguchi, M. et al. (2004) J. Allergy Clin. Immunol. 114:1265.
  4. Kolls, J.K. and A. Linden (2004) Immunity 21:467.
  5. Gu, C. et al. (2013) Cytokine 64:477.
  6. Cheung, P.F.Y. et al. (2008) J. Immunol. 180:5625.
  7. Liang, S.C. et al. (2007) J. Immunol. 179:7791.
  8. Ouyang, W. et al. (2008) Immunity 28:454.
  9. Steinman, L. (2007) Nat. Med. 13:139.
  10. Hunter, C.A. (2005) Nat. Rev. Immunol. 5:521.
  11. Kuestner, R.E. et al. (2007) J. Immunol. 179:5462.
  12. Wright, J.F. et al. (2008) J. Immunol. 181:2799.
  13. 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; IL-17A/F Heterodimer; interleukin 17 (cytotoxic T-lymphocyte-associated serine esterase 8); interleukin 17A; interleukin-17A

Citation for Recombinant Human IL-17A/F Heterodimer (CHO-expressed), CF

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.

1 Citation: Showing 1 - 1

  1. Interleukin 17 inhibits progenitor cells in rheumatoid arthritis cartilage.
    Authors: Schminke B, Trautmann S, Mai B, Miosge N, Blaschke S
    Eur J Immunol, 2015;46(2):440-5.
    Species: Human
    Sample Types: Whole Cells
    Applications: Bioassay


No product specific FAQs exist for this product, however you may

View all Proteins and Enzyme FAQs

Reviews for Recombinant Human IL-17A/F Heterodimer (CHO-expressed), CF

Average Rating: 5 (Based on 2 Reviews)

5 Star
4 Star
3 Star
2 Star
1 Star

Have you used Recombinant Human IL-17A/F Heterodimer (CHO-expressed), CF?

Submit a review and receive an Amazon gift card.

$25/€18/£15/$25CAN/¥75 Yuan/¥1250 Yen for a review with an image

$10/€7/£6/$10 CAD/¥70 Yuan/¥1110 Yen for a review without an image

Submit a Review

Filter by:

Recombinant Human IL-17A/F Heterodimer (CHO-expressed), CF
By Hongwei Han on 02/24/2021
Application: In vitro bioactivity in cell culture

Recombinant Human IL-17A/F Heterodimer (CHO-expressed), CF
By Anonymous on 02/24/2021
Application: In vitro bioactivity in cell culture