Recombinant Human IL-12 R beta 1 His-tag Protein, CF Summary
Details of Functionality |
Measured by its binding ability in a functional ELISA. Recombinant Human IL‑12 R beta 1 His-tag binds to Recombinant Human IL‑12 (Catalog #
219-IL) with an ED 50 of 3.00-30.0 ng/mL. |
Source |
Chinese Hamster Ovary cell line, CHO-derived human IL-12 R beta 1 protein Cys24-Glu540, with a C-terminal 6-His tag |
Accession # |
|
N-terminal Sequence |
Cys24 |
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 |
58 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 |
62-79 kDa, under 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 with Trehalose. |
Purity |
>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining. |
Reconstitution Instructions |
Reconstitute at 250 μg/mL in PBS. |
Notes
This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.
Alternate Names for Recombinant Human IL-12 R beta 1 His-tag Protein, CF
Background
IL12RB1 (Interleukin-12 receptor
subunit beta-1; IL‑12 R beta 1), also known as CD212, is a type I transmembrane protein with
similarities with the gp130/G-CSF R subgroup in the cytokine receptor
superfamily. IL12RB1, along with IL12RB2, are two receptor subunits for
IL12. Individually, the two subunits
bind IL12 with low affinity, but when combined they form a high-affinity receptor
complex (1). Human IL12RB1 contains 5 fibronectin domains in the extracellular
domain (ECD), a single transmembrane domain and a box 1 motif in the
cytoplasmic region. The mature ECD of
human IL12RB1 shares 51% amino acid identity with mouse and rat IL12RB1.
Interleukin 12 (IL12) is a pro-inflammatory
cytokine and key mediator of cellular-immunity and induces the differentiation
of Th1 cells from precursor T helper cells (2). Binding of IL12RB1, along
with IL12RB2, is required for IL12 signal transduction and subsequent activity
(1,2). Expression of IL12RB1 been detected in activated T cells,
NK cells and B cells (1). The expression of IL12RB2 is more
restricted and appears to be limited to Th2 cells. IL12RB1 has been
reported to interact with IL23R to form the functional receptor complex for
IL23 and probably activation of the Jak-Stat signaling cascade (3).
- Robinson R.T. (2015) Cytokine. 71:348.
- Rosenzweig S.D. and Holland S.M. (2005) Immunol. Rev. 203:38.
- Zou J. et al. (1997) J. Biol Chem, 272:6073.
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