The high-affinity CNTF receptor complex, which mediates the biological action of CNTF, contains three proteins: the ligand-binding alpha subunit (CNTF R alpha ), and the two signal-transducing proteins LIF R beta and gp130. Whereas LIF R beta and gp130 are widely expressed in many cell types, the expression of CNTF R alpha is restricted to the central and peripheral nervous systems. cDNAs encoding CNTF R alpha have been isolated from both human and rat and were shown to share 94% amino acid (aa) sequence identity. Human CNTF R alpha cDNA encodes a 372 aa residue precursor protein that apparently has a 22 aa residue signal peptide and four potential glycoslyation sites. CNTF R alpha differs from other cytokine receptors in that it lacks transmembrane and cytoplasmic domains and is anchored to cell membranes by a glycosylphosphatidylinositol (GPI) linkage. Similar to other GPI-linked proteins, soluble CNTF receptor alpha (CNTF sR alpha ) can be released from the cell surface by phosphatidylinositol-specific phospholipase C. CNTF sR alpha can be released from skeletal muscle in response to peripheral nerve injury and high concentrations of CNTF sR alpha have also been detected in human cerebrospinal fluid. CNTF sR alpha binds CNTF in solution and the complex can act on cells that express only LIF R beta and gp130 but not CNTF R alpha.
Recombinant Human CNTFR alpha Protein
R&D Systems | Catalog # 303-CR
Key Product Details
- R&D Systems Sf 21 (baculovirus)-derived Recombinant Human CNTFR alpha Protein (303-CR)
- 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
Accession Number
Applications
Product Specifications
Source
Gln23-Pro346
Purity
Endotoxin Level
N-terminal Sequence Analysis
Predicted Molecular Mass
SDS-PAGE
Activity
The ED50 for this effect is 0.1-0.4 µg/mL in the presence of 5 ng/mL of recombinant human CNTF.
Reviewed Applications
Read 1 review rated 3 using 303-CR in the following applications:
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: 303-CR
| Formulation | Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein. |
| Reconstitution | Reconstitute at 100 μg/mL in sterile PBS 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.
|
Carrier Free: 303-CR/CF
| Formulation | Lyophilized from a 0.2 μm filtered solution in PBS. |
| Reconstitution | Reconstitute at 100 μg/mL in sterile PBS. |
| 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.
|
Calculators
Background: CNTFR alpha
References
- Yancopoulos, G.D. in Guidebook to Cytokines and Their Receptors, Nicola, N.A. ed. Oxford University Press, New York, p. 137.
Long Name
Alternate Names
Gene Symbol
UniProt
Additional CNTFR alpha Products
Product Documents for Recombinant Human CNTFR alpha Protein
Certificate of Analysis
To download a Certificate of Analysis, please enter a lot or batch number in the search box below.
Note: Certificate of Analysis not available for kit components.
Product Specific Notices for Recombinant Human CNTFR alpha Protein
For research use only
Related Research Areas
Citations for Recombinant Human CNTFR alpha Protein
Powered by Bioz
Customer Reviews for Recombinant Human CNTFR alpha Protein (1)
Have you used Recombinant Human CNTFR alpha Protein?
Submit a review and receive an Amazon gift card!
$25/€18/£15/$25CAN/¥2500 Yen for a review with an image
$10/€7/£6/$10CAN/¥1110 Yen for a review without an image
Submit a review
Customer Images
-
Application: Binding assay/Protein-protein interactionVerified Customer | Posted 07/07/2020
There are no reviews that match your criteria.