膜杰作
Star Staining
分子别名（Synonym）
Interferon lambda receptor 1,IFN-lambda receptor 1,IFN-lambda-R1,Cytokine receptor class-II member 12,Cytokine receptor family 2 member 12,CRF2-12,Interleukin-28 receptor subunit alpha,IL-28 receptor subunit alpha,IL-28R-alpha,IL-28RA,Likely interleukin or cytokine receptor 2,LICR2,IFNLR1,IL28RA, LICR2
表达区间及表达系统（Source）
Biotinylated Human IL-28 R alpha Protein, His,Avitag (ILR-H82E4) is expressed from human 293 cells (HEK293). It contains AA Arg 21 - Ala 228 (Accession # Q8IU57-1).
Predicted N-terminus: Arg 21
Request for sequence
蛋白结构（Molecular Characterization）
This protein carries a polyhistidine tag at the C-terminus, followed by an Avi tag (Avitag™).
The protein has a calculated MW of 27.2 kDa. The protein migrates as 40-43 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.
标记（Labeling）
Biotinylation of this product is performed using Avitag™ technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin.
蛋白标记度（Protein Ratio）
Passed as determined by the HABA assay / binding ELISA.
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 with trehalose as protectant.
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）
Biotinylated Human IL-28 R alpha Protein, His,Avitag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 90% (With Star Ribbon Pre-stained Protein Marker).
背景（Background）
IL-28 R alpha (Interleukin-28 receptor subunit alpha) also known as IFNLR1 (IFN-lambda receptor 1), it heterodimerizes with another subunit, IL-10RB, to form a type II cytokine receptor ,which binds IL-28A, IL-28B and IL-29. These ligands, which are distantly related to class I in terferons, are activated upon viral infection and trigger the JAK-STAT signaling pathway to exert antiviral activity. The ligand/receptor complex stimulate the activation of the JAK/STAT signaling pathway leading to the expression of IFN-stimulated genes (ISG), which contribute to the antiviral state. Determines the cell type specificity of the lambda interferon action. Shows a more restricted pattern of expression in the epithelial tissues thereby limiting responses to lambda interferons primarily to epithelial cells of the respiratory, gastrointestinal, and reproductive tracts.
