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分子别名（Synonym）
TACSTD2,GA733-1,M1S1,TROP2
表达区间及表达系统（Source）
Human TROP-2, Fc Tag (TR2-H5253) is expressed from human 293 cells (HEK293). It contains AA Gln 31 - Thr 274 (Accession # P09758-1).
Predicted N-terminus: Gln 31
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 54.3 kDa. The protein migrates as 65-80 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）
>95% as determined by SDS-PAGE.
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.
产品数据图
电泳（SDS-PAGE）
Human TROP-2, 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% (With Star Ribbon Pre-stained Protein Marker).
SEC-MALS
The purity of Human TROP-2, Fc Tag (Cat. No. TR2-H5253) is more than 85% and the molecular weight of this protein is around 110-140 kDa verified by SEC-MALS.
Report
活性（Bioactivity）-ELISA
Immobilized Human TROP-2, Fc Tag (Cat. No. TR2-H5253) at 1 μg/mL (100 μL/well) can bind Mouse Monoclonal Antibody Against Human TROP-2, Mouse IgG1 with a linear range of 0.2-2 ng/mL (QC tested).
Protocol
活性（Bioactivity）-SPR
Captured Trop2 antibody on CM5 chip via anti-mouse antibodies surface can bind Human TROP-2, Fc Tag (Cat. No. TR2-H5253) with an affinity constant of 3.45 nM as determined in a SPR assay (Biacore T200) (Routinely tested).
Protocol
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背景
TROP-2 is a single-copy gene in human cells, and encodes a type-1 transmembrane glycoprotein which is over-expressed in various malignancies, also referred to as tumor associated calcium signal transducer 2 (TACSTD2), GA733-1 or M1S1. TROP-2 is related to epithelial cell adhesion molecule (EpCAM), also called TROP-1, gp40, and KSA. Trop-1 and Trop-2 are homologous to serum IGF-II-binding proteins and appear as signal transducers. Thus, they likely represent novel cell-surface receptors and may play a role in regulating the growth of carcinoma cells.
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