Recombinant Mouse IL-18 R alpha/IL-1 R5 Fc Chimera, CF Summary
Details of Functionality |
Measured by its binding ability in a functional ELISA. When Recombinant Mouse IL‑18 R alpha /IL‑1 R5 Chimera
is immobilized at 2 μg/mL, 100 μL/well, the concentration of
Recombinant Mouse IL-18
(Catalog #
9139-CL)
that produces 50% of the optimal binding response
is 1.5-9 μg/mL. |
Source |
Mouse myeloma cell line, NS0-derived mouse IL-18 R alpha/IL-1 R5 protein Mouse IL-18 R alpha/IL-1 R5 (Lys20-Gly326) Accession # Q61098 | IEGRDP | Mouse IgG2a (Glu98-Lys330) | N-terminus | | C-terminus | |
|
Accession # |
|
N-terminal Sequence |
Lys20 |
Structure / Form |
Disulfide-linked homodimer |
Protein/Peptide Type |
Recombinant Proteins |
Purity |
>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining. |
Endotoxin Note |
<0.10 EU per 1 μg of the protein by the LAL method. |
Applications/Dilutions
Dilutions |
|
Theoretical MW |
62 kDa. Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors. |
SDS-PAGE |
90-106 kDa, reducing conditions |
Packaging, Storage & Formulations
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.
|
Buffer |
Lyophilized from a 0.2 μm filtered solution in PBS. |
Purity |
>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining. |
Reconstitution Instructions |
Reconstitute at 1 mg/mL in PBS. |
Notes
This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.
Alternate Names for Recombinant Mouse IL-18 R alpha/IL-1 R5 Fc Chimera, CF
Background
IL-18 Receptor alpha (IL-18 Ra), also known as IL-18 R1, IL-1 R5, and IL-1 Rrp, is a transmembrane
component of the IL-18 Receptor (1). It associates with IL‑18 Rb/IL‑1 R7 to form the high affinity receptor complex for IL-18 and confer
cellular responsiveness to IL-18 (2, 3). IL-18 is a member of the IL-1 family
of cytokines and shares numerous immunoregulatory functions with IL-12. Mature
mouse IL-18 Ra consists of a 307 amino
acid (aa) extracellular domain (ECD) with three immunoglobulin-like domains, a
21 aa transmembrane segment, and a 190 aa cytoplasmic domain (4). Within the
ECD, mouse IL-18 Ra shares 56% and 82% aa sequence identity with human and rat IL-18 Ra, respectively. IL-18 Ra is widely expressed on
epithelial cells as well as on B cells, NK cells, CD4
+ and CD8
+
T cells, and dendritic cells (5-8). Signaling through the IL-18 receptor
promotes a Th1 biased immune response and NK cell cytolytic activity (6, 7,
9-11). It also contributes to cigarette smoke-induced airway inflammation and
epithelial damage (12).
-
Dinarello, C.A. et al. (2013) Front. Immunol. 4:289.
- Torigoe, K. et al. (1997) J. Biol. Chem. 272:25737.
- Born, T.L. et al. (1998) J. Biol. Chem. 273:29445.
- Parnet, P. et al. (1996) J. Biol. Chem. 271:3967.
- Kunikata, T. et al. (1998) Cell Immunol. 189:135.
- Smeltz, R.B. et al. (2001) J. Exp. Med. 194:143.
- Chan, W.L. et al. (2001) J. Immunol. 167:1238.
- Kaser, A. et al. (2004) Blood 103:648.
- Tomura, M. et al. (1998) J. Immunol. 160:3759.
- Yoshimoto, T. et al. (1998) J. Immunol. 161:3400.
- Hyodo, Y. et al. (1999) J. Immunol. 162:1662.
- Kang, M.J. et al. (2007) J. Immunol. 178:1948.
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