Recombinant Human GDF15 Protein is expressed from E.coli with His tag at the N-Terminus.It contains Ala197-Ile308.
Pureté
> 95 % as determined by Tris-Bis PAGE
Stérilité
0.22 μm filtered
niveau d'endotoxine
Less than 1EU per μg by the LAL method.
Biological Activity Comment
Immobilized Human GDF15, His Tag at 0.5μg/ml (100μl/well) on the plate. Dose response curve for Human GFRAL, hFc Tag with the EC50 of 22.8ng/ml determined by ELISA. The affinity constant of 0.014 nM as determined in SPR assay (Biacore T200). See testing image for detail.
GDF15
Origine: Rat
Hôte: Escherichia coli (E. coli)
Recombinant
> 95 % as determined by Tris-Bis PAGE
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 50 mM HAc ( pH 2.9).
Buffer
Lyophilized from 0.22μm filtered solution in 50 mM HAc ( pH 2.9). 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.
Growth Differentiation Factor 15 (GDF15), also known as NSAID activated gene-1 (NAG-1), is associated with a large number of biological processes and diseases, including cancer and obesity. GDF15 is synthesized as pro-GDF15, is dimerized, and is cleaved and secreted into the circulation as a mature dimer GDF15.
Poids moléculaire
13.5 kDa. The protein migrates to 15-16 kDa based on Tris-Bis PAGE result.