Recombinant Human LIF R/CD118 Protein is expressed from HEK293 with His tag at the C-Terminus.It contains Gln45-Ser833.
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 LIF at 2μg/ml (100μl/Well) on the plate. Dose response curve for Human LIF R, His Tag with the EC50 of 0.75μg/ml determined by ELISA. The affinity constant of 0.662 μM as determined in SPR assay (Biacore T200). See testing image for detail.
Crystallography grade
LIFR
宿主: 人
宿主: Insect Cells
Recombinant
>95 % as determined by SDS PAGE, Size Exclusion Chromatography and Western Blot.
SDS, WB, ELISA, Crys
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.
The leukemia inhibitory factor receptor (LIF-R) subunit is a component of cell-surface receptor complexes for the multifunctional cytokines, LIF, cardiotrophin-1, ciliary neurotrophic factor, and human oncostatin M. The structure of the human LIF-R gene is similar to that of the mouse gene. The transmembrane receptor is encoded by 19 exons.
分子量
90.5 kDa. Due to glycosylation, the protein migrates to 115-130 kDa based on Tris-Bis PAGE result.