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Product Details
Synonyms
Prefusion glycoprotein F0/pre-F protein (RSV)
Source
Biotinylated Human respiratory syncytial virus A (strain A2) Pre-F0, His,Avitag (RSF-V82E7) is expressed from human 293 cells (HEK293).
Molecular Characterization
This protein carries a polyhistidine tag at the C-terminus, followed by an Avi tag (Avitag™).
The protein has a calculated MW of 57.8 kDa. The protein migrates as 60-65 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.
The protein is designed as a trimer.
Labeling
Biotinylation of this product is performed using Avitag™ technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin.
Protein Ratio
Passed as determined by the HABA assay / binding ELISA.
Purity
>95% as determined by SDS-PAGE.
Formulation
Lyophilized from 0.22 μm filtered solution in 0.1 M Sodium citrate, 150 mM NaCl, pH5.5 with trehalose as protectant.
Contact us for customized product form or formulation.
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.
Shipping and Storage
This product is shipped at ambient temperature.
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.
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Performance Data
SDS-PAGE
Biotinylated Human respiratory syncytial virus A (strain A2) Pre-F0, His,Avitag 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 Biotinylated Human respiratory syncytial virus A (strain A2) Pre-F0, His,Avitag (Cat. No. RSF-V82E7) is more than 85% and the molecular weight of this protein is around 185-225 kDa verified by SEC-MALS.
Report
Bioactivity-ELISA
Immobilized Anti-Fusion glycoprotein F0 Antibody, Human IgG1 (D25) at 5 μg/mL (100 μL/well) can bind Biotinylated Human respiratory syncytial virus A (strain A2) Pre-F0, His,Avitag (Cat. No. RSF-V82E7) with a linear range of 0.1-8 ng/mL (QC tested).
Protocol
Immobilized Anti-Fusion glycoprotein F0 Antibody, Mouse IgG2a (101F) at 5 μg/mL (100 μL/well) can bind Biotinylated Human respiratory syncytial virus A (strain A2) Pre-F0, His,Avitag (Cat. No. RSF-V82E7) with a linear range of 0.2-16 ng/mL (QC tested).
Protocol
Immobilized Recombinant Mouse Anti-RSV F Antibody (5C4) at 5 μg/mL (100 μL/well) can bind Biotinylated Human respiratory syncytial virus A (strain A2) Pre-F0, His,Avitag (Cat. No. RSF-V82E7) with a linear range of 0.2-16 ng/mL (QC tested).
Protocol
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FAQ
- Product
What do “pre” and “post” refer to in the names of viral proteins?
In virology, “pre” refers to the conformation of a viral surface glycoprotein before fusion with the host cell membrane, while “post” refers to the conformation after membrane fusion and entry into the host cell. Both are naturally occurring states in the viral life cycle. Because the “pre” conformation represents a critical stage before viral entry, antibodies designed against this state often exhibit stronger neutralizing activity and are therefore more effective in preventing infection.
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