Recombinant Human GFR alpha 1 Protein is expressed from HEK293 with His tag at the C-Terminus.It contains Asp25-Ser424.
Pureté
> 95 % as determined by Tris-Bis PAGE,> 95 % as determined by HPLC
Stérilité
0.22 μm filtered
niveau d'endotoxine
Less than 1EU per μg by the LAL method.
Biological Activity Comment
Immobilized Human GDNF, No Tag at 1μg/ml (100μl/well) on the plate. Dose response curve for Human GFR alpha 1, His Tag with the EC50 of 3.7ng/ml determined by ELISA. See testing image for detail.
GFRA1
Origine: Humain
Hôte: Escherichia coli (E. coli)
Recombinant
> 95 %
WB, SDS, Imm, PC
Restrictions
For Research Use only
Format
Lyophilized
Reconstitution
Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/mL is recommended. Dissolve the lyophilized protein in distilled water.
Buffer
Lyophilized from 0.22μm filtered solution in PBS ( pH 7.4). Normally 8 % trehalose is added as protectant before lyophilization.
Stock
-20 °C,-80 °C
Stockage commentaire
-20 to -80°C for 12 months as supplied from date of receipt.,-80°C for 3-6 months after reconstitution.,2-8°C for 2-7 days after reconstitution.,Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.
Neuroblastomas often undergo spontaneous differentiation and/or regression in vivo, which is at least partly regulated by the signals through neurotrophins and their receptors. Recently, glial cell line-derived neurotrophic factor (GDNF) and a second family member, neurturin (NTN), have been found to mediate their signals by binding to a heterotetrameric complex of c-Ret tyrosine kinase receptors and glycosylphosphatidylinositol-linked proteins, GFR alpha-1 (GDNFR-alpha) or GFR alpha-2 (TrnR2/GDNFR-beta/NTNR-alpha/RETL2).
Poids moléculaire
45.8 kDa. Due to glycosylation, the protein migrates to 50-70 kDa based on Tris-Bis PAGE result.