Biotinylated Human HLA-DRA1*01:01&HLA-DRB1*04:01&TDP1 (KWCANPDWIHIDTTPFAGLV) Complex Protein (Monomer, MALS verified)

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HL1-H82E9-50ug
$300.00
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HL1-H82E9-200ug
$700.00
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HL1-H82E9
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Synonyms

HLA-DRA1*0101 & HLA-DRB1*0401 & TDP1(KWCANPDWIHIDTTPFAGLV)

Source

Biotinylated Human HLA-DRA1*01:01&HLA-DRB1*04:01&TDP1 (KWCANPDWIHIDTTPFAGLV) Complex Protein (HL1-H82E9) is expressed from human 293 cells (HEK293). It contains AA Ile 26 - Glu 216 (HLA-DRA1*0101) & Gly 30 - Lys 227 (HLA-DRB1*0401) & KWCANPDWIHIDTTPFAGLV peptide (Accession # CAI2388006.1 (HLA-DRA1*0101) & CAI9239961.1 (HLA-DRB1*0401) & KWCANPDWIHIDTTPFAGLV).

Predicted N-terminus: Ile 26 & Lys

Molecular Characterization

Biotinylated Human HLA-DRA1*01:01&HLA-DRB1*04:01&TDP1 (KWCANPDWIHIDTTPFAGLV) Complex Protein is produced by co-expression of HLA-DRA1 and HLA-DRB1 loaded with TDP1 peptide.

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

The protein has a calculated MW of 30.4 kDa and 29.2 kDa. The protein migrates as 37-41 kDa and 33-35 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.

Labeling

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

Purity

>90% as determined by SDS-PAGE.

>90% as determined by SEC-MALS.

Formulation

Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 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.

Introduction de fond

Biotinylated human HLA-DRA101:01&HLA-DRB104:01 forms an MHC class II heterodimer, assembling with the TDP1-derived peptide KWCANPDWIHIDTTPFAGLV to generate this biotin-labeled peptide-MHC complex. MHC II molecules present antigens to CD4⁺ T helper cells to initiate adaptive immune responses. TDP1 participates in D damage repair, and its epitope-specific immune response is implicated in antitumor immunity. This complex facilitates detection and study of antigen-specific CD4⁺ T cells for immunological research and vaccine development.