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Biotinylated Human BTLA (31-134) Protein, Fc Tag, Avi Tag (Avitag™)  pdf  pdf  pdf


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Synonym

BTLA,CD272

Source

Biotinylated Human BTLA (31-134), Fc Tag (BTA-H82F8) is expressed from human 293 cells (HEK293). It contains AA Lys 31 - Thr 134 (Accession # Q7Z6A9).

Predicted N-terminus: Lys 31

Molecular Characterization

BTLA(Lys 31 - Thr 134)Q7Z6A9
Fc(Pro 100 - Lys 330)P01857
Avi

This protein carries a human IgG1 Fc tag at the C-terminus, followed by an Avi tag (Avitag™).

The protein has a calculated MW of 40.5 kDa. The protein migrates as 55-66 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

Biotinylation

Biotinylation of this product is performed using Avitag™ technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin.

Biotin:Protein Ratio

The biotin to protein ratio is 0.5-1 as determined by the HABA assay.

Endotoxin

Less than 1.0 EU per μg by the LAL method.

Purity

>95% as determined by SDS-PAGE.

Formulation

Lyophilized from 0.22 μm filtered solution in 50 mM tris, 100 mM glycine, pH7.5. Normally trehalose is added as protectant before lyophilization.

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.

Storage

For long term storage, the product should be stored at lyophilized state at -20°C or lower.

Please avoid repeated freeze-thaw cycles.

No activity loss is observed after storage at:

  1. 4-8°C for 12 months in lyophilized state;
  2. -70°C for 3 months under sterile conditions after reconstitution.
 

SDS-PAGE

Biotinylated Human BTLA (31-134), Fc Tag (Catalog # BTA-H82F8) SDS-PAGE gel

Biotinylated Human BTLA (31-134), Fc Tag on SDS-PAGE under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 95%.

Bioactivity

Biotinylated Human BTLA (31-134), Fc Tag (Catalog # BTA-H82F8) ELISA bioactivity

Immobilized Human HVEM, Fc Tag (Catalog # HVM-H5258) at 10 μg/mL (100 μL/well) can bind Biotinylated Human BTLA, Fc Tag (Catalog # BTA-H82F8) with a linear range of 0.3-5 μg/mL.

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Background

B- and T-lymphocyte attenuator (BTLA) is also known as B- and T-lymphocyte-associated protein, CD antigen CD272. BTLA contains one Ig-like V-type (immunoglobulin-like) domain. As a lymphocyte inhibitory receptor, BTLA / CD272 inhibits lymphocytes during immune response. BTLA / CD272 can interact with tyrosine phosphatases PTPN6/SHP-1 and PTPN11/SHP-2, and interact with TNFRSF14/HVEM.

References

Please contact us via TechSupport@acrobiosystems.com if you have any question on this product.


Limited Use License

The Biotin AviTag technology is covered by U.S. Pat. No: 5,874,239 and includes any and all materials, methods, kits and related derivatives claimed by this patent. The purchase of the Acrobiosystems’s Avitag™ proteins confers to the purchaser the limited right to use the Avitag™ technology for non-commercial, or research use, or for purposes of evaluating the Avitag™ technology.

Commercial use of the Avitag™ technology to manufacture a commercial product, or use of the Avitag™ technology to facilitate or advance research which will be applied to the development of a commercial product requires a license from Avidity, LLC. Examples of Commercial use include, but are not limited to biosensors, diagnostics, therapeutic applications, proximity assays, and drug screening assays.