膜杰作
Star Staining
分子别名（Synonym）
T cell receptor beta constant 2,TRBC2
表达区间及表达系统（Source）
Human TRBC2, His Tag (TR2-H52H3) is expressed from human 293 cells (HEK293). It contains AA Asp 1 - Ala 144 (Accession # A0A5B9-1).
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蛋白结构（Molecular Characterization）
This protein carries a polyhistidine tag at the C-terminus.
The protein has a calculated MW of 18.3 kDa. The protein migrates as 19-21 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 0.1 EU per μg by the LAL method.
纯度（Purity）
>90% as determined by SDS-PAGE.
>90% as determined by SEC-HPLC.
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.
质量管理控制体系（QMS）
电泳（SDS-PAGE）
Human TRBC2, 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% (With Star Ribbon Pre-stained Protein Marker).
SEC-HPLC
The purity of Human TRBC2, His Tag (Cat. No. TR2-H52H3) was greater than 90% as determined by SEC-HPLC.
产品推荐（Recommended Products）
背景（Background）
The transmembrane protein, TCR, comprise of two disulphide-linked polypeptide chains: a α and β chain, a γ and δ chain. Each polypeptide chain consists of a variable and a constant region. TRBC2 is the constant region of T-cell receptor (TCR) beta chain. TRBC2 is presented on the surface of T cell and recognized peptide-major histocompatibility (MH) (pMH) that are displayed by antigen presenting cells (APC). TRBC2 is participate in an adaptive immune response and has been well-studied in T cell therapy.
