产品详情
分子别名(Synonym)
Claudin-18.2,CLDN18,Claudin-18
表达区间及表达系统(Source)
Fluorescent Human Claudin-18.2 Full Length Protein-VLP (CL2-HF218) is expressed from human 293 cells (HEK293). It contains AA Met 1 - Val 261 (Accession # P56856-2).
Predicted N-terminus: Met 1
蛋白结构(Molecular Characterization)
This protein carries a GFP tag.
Virus-like particles(VLPs) are formed by self-assembly of envelop/capsid proteins from viruses. Membrane Proteins can be constituted in-situ with VLPs produced from HEK293 cell cultures. These VLPs concentrate conformationally intact membrane proteins directly on the cell surface and produce soluble, high-concentration proteins perfect for immunization and antibody screening.
The VLPs provide the display of properly folded membrane proteins in their native cellular membrane in a compact size of 100~300 nm diameter (similar to the size of most viruses) making it optimal targets for dendritic cells in vivo and surface attachment for phage display.
偶联(Conjugate)
GFP
Excitation source: 488 nm spectral line, argon-ion laser
Excitation Wavelength: 488 nm
Emission Wavelength: 530 nm
内毒素(Endotoxin)
Less than 1.0 EU per μg by the LAL method.
制剂(Formulation)
The VLPs are highly immunogenic, so the immunization strategy should be optimized (antigen dose, regimen and adjuvant).
Supplied as 0.2 μm filtered solution in PBS, pH7.4 with trehalose as protectant.
Contact us for customized product form or formulation.
运输(Shipping)
This product is supplied and shipped with dry ice, please inquire the shipping cost.
存储(Storage)
Please protect from light and avoid repeated freeze-thaw cycles.
This product is stable after storage at:
- The product MUST be stored at -70°C or lower upon receipt;
- -70°C for 12 months under sterile conditions.
质量管理控制体系(QMS)
- *The isotype control of empty/mock VLP (Cat. No. VLP-NF2P4) is sold separately and not included in protein, you can follow this link for product information.
产品展示
活性(Bioactivity)-ELISA
Immobilized Fluorescent Human Claudin-18.2 Full Length Protein-VLP (HEK293) (Cat. No. CL2-HF218) at 5 μg/mL (100 μL/well) can bind Monoclonal Anti-Chimeric Claudin-18.2 Antibody, Human IgG1 with a linear range of 0.1-3 ng/mL (QC tested).
Protocol
活性(Bioactivity)-SPR
Fluorescent Human Claudin-18.2 Full Length Protein-VLP (Cat. No. CL2-HF218) captured on CM5 Chip via Anti-Claudin-18.2 antibody can bind Anti-Claudin-18.2 antibody with an affinity constant of 0.433 nM as determined in a SPR assay (Biacore T200) (Routinely tested).
Protocol
活性(Bioactivity)-FACS
2e5 of Anti-Claudin-18.2 CAR-293 cells were stained with 100 μL of 3 μg/mL of Fluorescent Human Claudin-18.2 Full Length Protein-VLP (Cat. No.CL2-HF218) and negative control protein respectively, FITC signals was used to evaluate the binding activity (QC tested).
Protocol
均一性(Identity)-DLS
The mean peak Radius of VLP is 65-85 nm with more than 95% intensity as determined by dynamic light scattering (DLS).
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