The Recombinant Rat CNTF Protein is a high-quality recombinant protein produced for advanced research applications in molecular biology and biotechnology. This protein serves as a critical reagent in various experimental contexts, including functional studies, binding assays, and therapeutic development programs, providing researchers with a standardized and reliable tool for investigating protein function and interactions.
This product (SKU: RPCB1705) is produced using E. coli and features a C-6His tag for convenient detection and purification. The protein exhibits a calculated molecular weight of 23.69 kDa with an observed molecular weight of 25-30 kDa under denaturing conditions, achieving ≥ 95 % as determined by SDS-PAGE.. Functional bioactivity has been validated through rigorous quality control assays, confirming its suitability for demanding research applications.
High quality, high purity and low endotoxin recombinant Recombinant Rat CNTF Protein (RPCB1705), tested reactivity in E. coli and has been validated in SDS-PAGE.100% guaranteed.
Endotoxin:
< 1 EU/μg of the protein by LAL method.
Purity:
≥ 95 % as determined by SDS-PAGE.
Formulation:
Lyophilized from a 0.22 μm filtered solution of PBS, pH 7.4.
Bio-Activity:
Measured in a cell proliferation assay using TF-1 human erythroleukemic cells. The ED 50 for this effect is 14.08-56.34 ng/mL.
Reconstitution:
Centrifuge the vial before opening. Reconstitute to a concentration of 0.1-0.5 mg/mL in sterile distilled water. Avoid vortex or vigorously pipetting the protein. For long term storage, it is recommended to add a carrier protein or stablizer (e.g. 0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose), and aliquot the reconstituted protein solution to minimize free-thaw cycles.
Storage:
Store at -20℃.Store the lyophilized protein at -20℃ to -80 ℃ up to 1 year from the date of receipt. After reconstitution, the protein solution is stable at -20℃ for 3 months, at 2-8℃ for up to 1 week.
Ciliary neurotrophic factor (CNTF) is a member of the cytokine family. It is a polypeptide hormone that has functions in promoting neurotransmitter synthesis and neurite outgrowth in certain neuronal populations. Its 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 extracellular 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 oligodendrocyteands may be relevant in reducing tissue destruction during inflammatory attacks. CNTF also is 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.
Recombinant Rat CNTF Protein was determined by SDS-PAGE under reducing conditions with Coomassie Blue.
Recombinant Rat CNTF stimulates cell proliferation of the TF-1 human erythroleukemic cells. The ED50 for this effect is 14.08-56.34 ng/mL, corresponding to a specific activity of 6.25 × 104~0.25× 106 units/mg.
