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分子别名（Synonym）
CTLA4, CD152
表达区间及表达系统（Source）
Rat CTLA-4, Fc Tag (CT4-R5259) is expressed from human 293 cells (HEK293). It contains AA Ile 38 - Asp 161 (Accession # Q62859).
Predicted N-terminus: Ile 38
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 40.2 kDa. The protein migrates as 50-55 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 / rFC method.
纯度（Purity）
>95% as determined by SDS-PAGE.
>95% as determined by SEC-MALS.
制剂（Formulation）
Lyophilized from 0.22 μm filtered solution in Tris with Glycine, Arginine and NaCl, pH7.5 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）
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数据展示
电泳（SDS-PAGE）
Rat CTLA-4, Fc 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 Rat CTLA-4, Fc Tag (Cat. No. CT4-R5259) is more than 95% and the molecular weight of this protein is around 85-110 kDa verified by SEC-MALS.
Report
活性（Bioactivity）-ELISA
Immobilized Mouse B7-2, His Tag (Cat. No. CD6-M52H0) at 2 μg/mL (100 μL/well) can bind Rat CTLA-4, Fc Tag (Cat. No. CT4-R5259) with a linear range of 0.2-3 ng/mL (QC tested).
Protocol
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