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Human CNTFR / CNTFR-alpha Protein (His Tag)

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CNTFRProtein Product Information
Synonym:CNTFR, MGC1774
Protein Construction:The amino acids sequence corresponding to (Met 1-Pro 346) of human CNTFR (NP_001833.1) was fused with a polyhistidine tag at the C-terminus.
Species:Human
Expressed Host:Baculovirus-Insect Cells
Form & Shipping:In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.
Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
CNTFRProtein QC Testing
Purity:> 98 % as determined by SDS-PAGE
Bio-Activity:Measured by its binding ability in a functional ELISA . Immobilized human CTNFR at 10 μg/ml (100 μl/well) can bind biotinylated human CNTF with a linear ranger of 1.28-160 ng/ml .
Endotoxin:< 1.0 EU per μg of the protein as determined by the LAL method
Stability:Samples are stable for up to twelve months from date of receipt at -70℃
Predicted N Terminal:Gln 23
Molecule Mass:The recombinant human CNTFR consists of 335 amino acids and predicts a molecular mass of 36 kDa. The apparent molecular mass of rhCNTFR is approximately 45-48 kDa in SDS-PAGE under reducing conditions.
Formulation:Lyophilized from sterile 50mM Tris, 100mM NaCl, pH 8.0
1. Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
2. Please contact us for any concerns or special requirements.
CNTFRProtein Usage Guide
Storage:Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Reconstitution:A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
11012-H08B
Background

Ciliary neurotrophic factor(CNTF) is a member of the cytokine family. It is a polypeptide hormone that have functions in promoting neurotransmitter synthesis and neurite outgrowth in certain neuronal populations. It's actions appear to be restricted to the nervous system. Ciliary neurotrophic factor(CNTF) has biological effects through the activation of a multi-subunit receptor complex, consisting of an extracelluar CNTF binding subunit(CNTFα) and two transmembrane signal transduction proteins: glycoprotein gp130 and LIF receptor. CNTF is considered as a potent survival factor of neurons and oligodendrocytes and may be relevant in reducing tissue destruction during inflammatory attacks. CNTF is also a survival factor for neurons of the peripheral sensory sympathetic, and ciliary ganglia. It has been reported that CNTF could be an agent that has therapeutic potential and possibly induces differentiation of large multipolar ganglionic phenotype in a subset of progenitors.

References
  • Dutt K, et al. (2010) Ciliary neurotrophic factor: a survival and differentiation inducer in human retinal progenitors. In Vitro Cell Dev Biol Anim. 46 (7) : 635-46.
  • Lam A, et al. ( 1991) Sequence and structural organization of the human gene encoding ciliary neurotrophic factor. Gene 102 (2) : 271-6.
  • Bazan JF. ( 1991) Neuropoietic cytokines in the hematopoietic fold. Neuron 7 (2) : 197-208.
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    Catalog:11012-H08B-50
    List Price: $178.00  (Save $0.00)
    Price:$178.00      [How to order]
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    • Human CNTFR / CNTFR-alpha Protein (His Tag) SDS-PAGE
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