膜杰作
Star Staining
表达区间及表达系统（Source）
Human gp130, His Tag (ILT-H52H2) is expressed from human 293 cells (HEK293). It contains AA Glu 23 - Glu 619 (Accession # P40189-1).
Predicted N-terminus: Glu 23
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 69.6 kDa. The protein migrates as 80-100 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）
>95% as determined by SDS-PAGE.
>90% as determined by SEC-MALS.
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）
Human gp130, His Tag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95%.
SEC-MALS
The purity of Human gp130, His Tag (Cat. No. ILT-H52H2) is more than 90% and the molecular weight of this protein is around 85-105kDa verified by SEC-MALS.
Report
活性（Bioactivity）-ELISA
Immobilized Biotinylated Human IL-6 R alpha, Fc,Avitag (Cat. No. ILR-H82F9) at 10 μg/mL (100 μL/well) on Human IL-6, premium grade (Cat. No. IL6-H4218) precoated (0.5 μg/well) plate can bind Human gp130, His Tag (Cat. No. ILT-H52H2) with a linear range of 0.005-0.313 μg/mL (QC tested).
Protocol
Immobilized Human gp130, His Tag (Cat. No. ILT-H52H2) at 5 μg/mL (100 μL/well) can bind Human IL-6, premium grade (Cat. No. IL6-H4218) in the presence of Biotinylated Human IL-6 R alpha, Fc,Avitag (Cat. No. ILR-H82F9) with a linear range of 0.6-20 ng/mL (Routinely tested).
Protocol
背景（Background）
Interleukin-6 receptor subunit beta (IL6ST) is also known as IL-6 receptor subunit beta, IL-6R subunit beta, IL-6R-beta, IL-6RB, Interleukin-6 signal transducer, Membrane glycoprotein 130 (gp130), CD130, Oncostatin-M receptor subunit alpha and Il6st,which is single-pass type I membrane protein. IL6ST /gp130 /CD130 can be found in tissues such as brain, heart, thymus, spleen, kidney, lung and liver and found in all the cell lines tested except BaF-B03.The expression of IL-6ST /gp130 is not restricted to IL6-responsive cells. The receptor systems for IL6, LIF, OSM, CNTF, IL11, CTF1 and BSF3 can utilize gp130 for initiating signal transmission. IL6ST /CD130 can bind to IL6 /IL6R (alpha chain) complex, resulting in the formation of high-affinity IL6 binding sites, and transduce the signal. IL6ST /GP130 does not bind IL6 and may have a role in embryonic development.
