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分子别名（Synonym）
Coagulation factor XI,FXI,PTA,F11
表达区间及表达系统（Source）
Human Coagulation factor XI, His Tag (FXI-H52H5) is expressed from human 293 cells (HEK293). It contains AA Glu 19 - Val 625 (Accession # P03951-1).
Predicted N-terminus: Glu 19
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 69.9 kDa. The protein migrates as 35 kDa and 50 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE).
内毒素（Endotoxin）
Less than 1.0 EU per μg by the LAL method / rFC method.
纯度（Purity）
>90% as determined by SDS-PAGE.
制剂（Formulation）
Lyophilized from 0.22 μm filtered solution in 20 mM HEPES, 150 mM 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）
Human Coagulation factor XI, 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).
活性（Bioactivity）-ELISA
Immobilized Human Coagulation factor XI, His Tag (Cat. No. FXI-H52H5) at 1 μg/mL (100 μL/well) can bind Abelacimab with a linear range of 0.2-8 ng/mL (QC tested).
Protocol
Immobilized Abelacimab at 1 μg/mL (100 μL/well) can bind Human Coagulation factor XI, His Tag (Cat. No. FXI-H52H5) with a linear range of 2-31 ng/mL (Routinely tested).
Protocol
活性（Bioactivity）-SPR
Anti-Factor XI Antibody captured on Protein A Chip can bind Human Coagulation factor XI, His Tag (Cat. No. FXI-H52H5) with an affinity constant of 15.2 nM as determined in a SPR assay (Biacore 8K) (Routinely tested).
Protocol
活性（Bioactivity）
Measured by its ability to cleave the fluorogenic peptide substrate, t-butyloxycarbonyl-Ile-Glu-Gly-Arg-7-amido-4-methylcoumarin (Boc-IEGR-AMC). The specific activity is >300 pmol/min/µg (QC tested)
Protocol
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