膜杰作
Star Staining
分子别名（Synonym）
ACVR2B,ACTRIIB,MGC116908
表达区间及表达系统（Source）
Human Activin RIIB Protein, Fc Tag (ACB-H5254) is expressed from human 293 cells (HEK293). It contains AA Ser 19 - Thr 137 (Accession # Q13705-1 ).
Predicted N-terminus: Ser 19
Request for sequence
蛋白结构（Molecular Characterization）
This protein carries a human IgG1 Fc tag at the C-terminus.
The protein has a calculated MW of 40.1 kDa. The protein migrates as 55-65 kDa when calibrated against Star Ribbon Pre-stained Protein Marker 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.
>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 Activin RIIB Protein, Fc Tag 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).
SEC-MALS
The purity of Human Activin RIIB Protein, Fc Tag (Cat. No. ACB-H5254) is more than 90% and the molecular weight of this protein is around 95-115 kDa verified by SEC-MALS.
Report
活性（Bioactivity）-ELISA
Immobilized Human Latent Activin A, His Tag (Cat. No. ACA-H424x) at 5 μg/mL (100 μL/well) can bind Human Activin RIIB Protein, Fc Tag (Cat. No. ACB-H5254) with a linear range of 0.6-20 ng/mL (QC tested).
Protocol
背景（Background）
Activin receptor type-2B (ACVR2B) is also known as ActR-IIB and MGC116908, ACVR2B is an activin type 2 receptor. Activins are dimeric growth and differentiation factors which belong to the transforming growth factor-beta (TGF-beta) superfamily of structur.
