Recombinant Human Ret Fc Chimera Protein, CF Summary
Accession # P07949
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.
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.
|Formulation||Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose.|
|Reconstitution||Reconstitute at 500 μg/mL in PBS.|
|Shipping||The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.|
|Stability & Storage:||
2 μg/lane of Recombinant Human Ret Fc Chimera was resolved with SDS-PAGE underreducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Bluestaining, showing bands at 120-140 kDa and 240-280 kDa, respectively.
The GDNF family of neurotrophic factors forms a subfamily within the TGF-beta superfamily. These proteins are potent survival factors for various central and peripheral neurons during development and in the adult animal. The GDNF family members (GDNF, Neurturin, Artemin and Persephin) signal through multicomponent receptors that consist of the Ret receptor tyrosine kinase and one of four glycosyl-phosphatidylinositol (GPI)-linked ligand-binding subunits (GFR alpha -1-4). GFR alpha -1 -2, -3 and -4 are the preferred ligand-binding subunits for GDNF, Neurturin, Artemin and Persephin, respectively. The Ret tyrosine-kinase receptor is encoded by the c-ret proto-oncogene. Mutations of the Ret gene have been associated with various human diseases affecting tissues derived from the neural crest, including Hirschsprung's disease, multiple endocrine neoplasia MEN2A and MEN2B, and familial medullary thyroid carcinoma. Human and mouse Ret share 83% amino acid sequence homology (77% homology in the extracellular domain and 93% homology in the cytoplasmic domain). Although Ret does not bind GDNF ligands directly, the extracellular domain of Ret binds the GDNF-GFR-alpha complex with high affinity and is a potent GDNF antagonist in the presence of soluble GFR-alpha (1-4).
- Trupp, M. et al. (1998) Mol. Cell. Neurosci. 11:47.
- Enokido, Y. et al. (1998) Curr. Biol. 8:1019.
- Carlomagno, F. et al. (1998) Endocrinology 139:3613.
- Baloh, R. et al. (1998) Neuron 21:1291.
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