Recombinant Human GM-CSF Protein is expressed from E.coli without tag.It contains Ala18-Glu144.
纯度
> 95 % as determined by Tris-Bis PAGE,> 95 % as determined by HPLC
过滤
0.22 μm filtered
内毒素水平
Less than 1EU per μg by the LAL method.
Biological Activity Comment
Immobilized Human GM-CSF at 2μg/ml (100μl/Well) on the plate. Dose response curve for Human GM-CSF R alpha, hFc Tag with the EC50 of 18.5ng/ml determined by ELISA. The affinity constant of 0.79nM as determined in SPR assay (Biacore T200). See testing image for detail.
CSF2
宿主: 小鼠
宿主: 大肠杆菌(E. Coli)
Recombinant
> 95 % as determined by reducing SDS-PAGE.
限制
仅限研究用
状态
Lyophilized
溶解方式
Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/mL is recommended. Dissolve the lyophilized protein in distilled water.
缓冲液
Lyophilized from 0.22μm filtered solution in PBS ( pH 7.4). Normally 8 % trehalose is added as protectant before lyophilization.
储存条件
-20 °C,-80 °C
储存方法
-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.
Granulocyte-macrophage colony-stimulating factor (GM-CSF), also known as colony-stimulating factor 2 (CSF2), is a monomeric glycoprotein secreted by macrophages, T cells, mast cells, natural killer cells, endothelial cells and fibroblasts that functions as a cytokine. The pharmaceutical analogs of naturally occurring GM-CSF are called sargramostim and molgramostim.