Recombinant Human GDNF Family Receptor alpha-2/GFRA2 produced by transfected human cells is a secreted protein with sequence (Ser22-Ser441) of Human GFRA2 fused with a polyhistidine tag at the C-terminus.
Pureté
> 95 % as determined by reducing SDS-PAGE.
Stérilité
0.2 μm filtered
niveau d'endotoxine
Less than 0.1 ng/μg (1 IEU/μg) as determined by LAL test
It is not recommended to reconstitute to a concentration less than 100 μg/mL. Dissolve the lyophilized protein in ddH2O. Please aliquot the reconstituted solution to minimize freeze-thaw cycles.
Buffer
Lyophilized from a 0.2 μm filtered solution of 20 mM PB, 150 mM NaCl, pH 7.2.
Conseil sur la manipulation
Always centrifuge tubes before opening. Do not mix by vortex or pipetting.
Stock
4 °C/-20 °C/-80 °C
Stockage commentaire
Lyophilized protein should be stored at < -20°C, though stable at room temperature for 3 weeks. Reconstituted protein solution can be stored at 4-7°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.
Members of the glial cell line-derived neurotrophic factor (GDNF) family, including GDNF and Neurturin, play key roles in the control of vertebrate neuronal survivial and differentiation. GDNF is a glycosylated, disulfide-bonded homodimer that is distantly related to the TGF superfamily of growth factors. Three receptors for these factors, GFRalpha-1, GFRalpha-2, and GFRalpha-3 have been identified. The receptors do not contain transmembrane domains and are attached to the cell membrane by glycosyl-phosphoinositol linkage. Both GFRalpha-1 and GFRalpha-2 have been shown to mediate the GDNF-dependent and Neurturin-dependent phosphorylation and activation of the tyrosine kinase Ret. GFR-3 is expressed only during development. GFRalpha-2 binds Neurturin and mediates activation of RET receptor tyrosine kinase by both Neurturin and GDNF. Alternative Names: GDNF Family Receptor Alpha-2, GDNF Receptor Alpha-2, GDNFR-Alpha-2, GFR-Alpha-2, GDNF Receptor Beta, GDNFR-Beta, Neurturin Receptor Alpha, NRTNR-Alpha, NTNR-Alpha, RET Ligand 2, TGF-Beta-Related Neurotrophic Factor Receptor 2, GFRA2, GDNFRB, RETL2, TRNR2