膜杰作
Star Staining
分子别名（Synonym）
Interleukin-20 receptor subunit alpha,IL-20 receptor subunit alpha,IL-20R-alpha,IL-20RA,Cytokine receptor class-II member 8,Cytokine receptor family 2 member 8,CRF2-8,IL-20R1,ZcytoR7
表达区间及表达系统（Source）
Human IL-20 R alpha Protein, His Tag (ILA-H52H3) is expressed from human 293 cells (HEK293). It contains AA Val 30 - Lys 250 (Accession # Q9UHF4-1).
Predicted N-terminus: Val 30
Request for sequence
蛋白结构（Molecular Characterization）
This protein carries a polyhistidine tag at the C-terminus.
The protein has a calculated MW of 27.1 kDa. The protein migrates as 35-45 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
内毒素（Endotoxin）
Less than 1.0 EU per μg by the LAL method.
纯度（Purity）
>90% as determined by SDS-PAGE.
制剂（Formulation）
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Normally trehalose is added as protectant before lyophilization.
Contact us for customized product form or formulation.
重构方法（Reconstitution）
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
存储（Storage）
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
- -20°C to -70°C for 12 months in lyophilized state;
- -70°C for 3 months under sterile conditions after reconstitution.
电泳（SDS-PAGE）
Human IL-20 R alpha Protein, His Tag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 90%.
SEC-MALS
The purity of Human IL-20 R alpha Protein, His Tag (Cat. No. ILA-H52H3) is more than 85% and the molecular weight of this protein is around 35-50 kDa verified by SEC-MALS.
Report
活性（Bioactivity）-SPR
Human IL-20, His Tag (Cat. No. IL0-H5243) immobilized on CM5 Chip can bind Human IL-20 R alpha Protein, His Tag (Cat. No. ILA-H52H3) with an affinity constant of 3.31 μM as determined in a SPR assay (Biacore 8K) (QC tested).
Protocol
背景（Background）
IL-20 R alpha (Interleukin-20 receptor subunit alpha) forms a functional heterodimer with the IL-20 beta subunit, and transduces ligand-binding at least in part through STAT3 activation. The IL-20 subfamily of cytokines and receptors are members of the larger IL-10 family, which are grouped together based on their utilization of common receptor subunits, similarities in their target-cell profiles, and biological functions. This subfamily consists of the cytokines, IL-19, IL-20, IL-22, IL-24, and IL-26, as well as the receptors, IL-20RA, IL-20RB, IL-10RB, and IL-22RA1.
