GDNF Human
GDNF promotes the survival and differentiation of dopaminergic neurons in culture, and is able to prevent apoptosis of motor neurons induced by axotomy. The encoded protein is processed to a mature secreted form that exists as a homodimer. The mature form of the protein is a ligand for the product of the RET (rearranged during transfection) protooncogene. In addition to the transcript encoding GDNF, two additional alternative transcripts encoding distinct proteins, referred to as astrocyte-derived trophic factors, have also been described. Mutations in this gene may be associated with Hirschsprung disease.
| Full Name | Glial-Derived Neurotrophic Factor Human Recombinant |
| Synonyms | ATF1, ATF2, HFB1-GDNF, GDNF. |
| Source | Escherichia Coli. |
| Amino Acid Sequence | The sequence of the first five N-terminal amino acids was determined and was found to be Met-Ser-Pro-Asp-Lys. |
| Molecular Weight | Glial derived Neurotrophic Factor Human Recombinant produced in E.Coli is a homodimer, non-glycosylated, polypeptide chain containing 2 x 135 amino acids and having a total molecular mass of 30,360 Dalton. |
| Purity | Greater than 95.0% as determined by SDS-PAGE. |
| Formulation | GDNF was lyophilized after dialysis against 10mM sodium citrate and 150mM NaCl. |
| Stability | Lyophilized Glial-derived Neurotrophic Factor although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution GDNF should be stored at 4°C between 2-7 days and for future use below -18°C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Please prevent freeze-thaw cycles. |
| Biological Activity | The ED50, calculated by the dose-dependant dopamin uptake in rat mesencephalic cultures was found to be 5-10 ng/ml, corresponding to a specific activity of 100,000-200,000Units/mg. |
| Solubility | It is recommended to reconstitute the lyophilized Glial Derived Neurotrophic Factor in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions. |
| Usage | LABORATORY RESEARCH USE ONLY. Not intended for diagnostic or therapeutic purposes. |
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Product Code: NT117
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