Recombinant Human IL-31 RA Protein is expressed from HEK293 with hFc tag at the C-Terminus.It contains Ala20-Glu519.
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 IL-31, His Tag at 5μg/ml (100μl/Well) on the plate. Dose response curve for Human IL-31 RA, hFc Tag with the EC50 of 1.2μg/ml determined by ELISA. The affinity constant of 1.5nM as determined in SPR assay (Biacore T200). See testing image for detail.
Crystallography grade
IL31RA
宿主: 人
宿主: Insect Cells
Recombinant
>95 % as determined by SDS PAGE, Size Exclusion Chromatography and Western Blot.
WB, SDS, 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.
Interleukin-31 receptor A (IL-31RA) is a newly identified type I cytokine receptor, that is related to gp130, the common receptor of the interleukin (IL) -6 family cytokines. IL-31RA forms a functional receptor complex for IL-31 together with the beta subunit of oncostatin M receptor (OSMRbeta). OSMRbeta is expressed in a subset of small-sized nociceptive neurons of adult dorsal root ganglia (DRGs).IL-31 and OSM may thus have redundant functions in the development of OSMRbeta-expressing neurons.
分子量
83.8 kDa. Due to glycosylation, the protein migrates to 110-135 kDa based on Tris-Bis PAGE result.