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Your Position: > Protein > CD28 > CD8-M82E3

Biotinylated Mouse CD28 Protein, His,Avitag™, active dimer (MALS verified)

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Based on the high binding affinity between biotin-streptavidin systems, our Streptavidin series products are recommended to use together with biotinylated proteins to get lower non-specific binding results in a shorter time.

  • 동의어
    CD28,Tp44
  • 출처
    Biotinylated Mouse CD28, His,Avitag (CD8-M82E3) is expressed from human 293 cells (HEK293). It contains AA Asn 20 - Lys 149 (Accession # P31041-1).
    Predicted N-terminus: Asn 20
  • 분자 표징
    Online(Asn 20 - Lys 149) P31041-1

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

    The protein has a calculated MW of 18.6 kDa. As a result of glycosylation, the protein migrates as 34-42 kDa under reducing (R) condition, and 60-70 kDa under non-reducing (NR) condition (SDS-PAGE).

  • 비오틴화
    비오틴화 of this product is performed using Avitag™ technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin.
  • Biotin:Protein Ratio
    Passed as determined by the HABA assay / binding ELISA.
  • 내독소
    Less than 1.0 EU per μg by the LAL method.
  • 순도

    >90% as determined by SDS-PAGE.

    >90% as determined by SEC-MALS.

  • 레시피

    Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Normally trehalose is added as protectant before lyophilization.

    Contact us for customized product form or formulation.

  • 재구성

    Please see Certificate of Analysis for specific instructions.

    For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

  • 보관

    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:

    1. -20°C to -70°C for 12 months in lyophilized state;
    2. -70°C for 3 months under sterile conditions after reconstitution.
SDS-PAGE
Biotinylated Mouse CD28, His,Avitag (Cat. No. CD8-M82E3) SDS-PAGE gel

Biotinylated Mouse CD28, His,Avitag on SDS-PAGE under reducing (R) and non-reducing (NR) conditions. The gel was stained with Coomassie Blue. The purity of the protein is greater than 90%.

SEC-MALS
Biotinylated Mouse CD28, His,Avitag (Cat. No. ) MALS images

The purity of Biotinylated Mouse CD28, His,Avitag (Cat. No. CD8-M82E3) is more than 90% and the molecular weight of this protein is around 57-69 kDa verified by SEC-MALS.

Bioactivity-ELISA
Biotinylated Mouse CD28, His,AvitagBiotinylated Mouse CD28, His,Avitag (Cat. No. CD8-M82E3) ELISA bioactivity

Immobilized Biotinylated Mouse CD28, His,Avitag (Cat. No. CD8-M82E3) at 1 μg/mL (100 μL/well) on Streptavidin (Cat. No. STN-N5116) precoated (0.5 μg/well) plate, can bind Mouse B7-1, Fc Tag (Cat. No. CD0-M5259) with a linear range of 0.6-10 ng/mL (QC tested).

Biotinylated Mouse CD28, His,AvitagBiotinylated Mouse CD28, His,Avitag (Cat. No. CD8-M82E3) ELISA bioactivity

Immobilized Biotinylated Mouse CD28, His,Avitag (Cat. No. CD8-M82E3) at 1 μg/mL (100 μL/well) on Streptavidin (Cat. No. STN-N5116) precoated (0.5 μg/well) plate, can bind Human B7-1, Mouse IgG2a Fc Tag (Cat. No. B71-H52A4) with a linear range of 0.2-5 ng/mL (Routinely tested).

Biotinylated Mouse CD28, His,AvitagBiotinylated Mouse CD28, His,Avitag (Cat. No. CD8-M82E3) ELISA bioactivity

Immobilized Biotinylated Mouse CD28, His,Avitag (Cat. No. CD8-M82E3) at 1 μg/mL (100 μL/well) on Streptavidin (Cat. No. STN-N5116) precoated (0.5 μg/well) plate, can bind Human B7-1, Fc Tag (Cat. No. B71-H5259) with a linear range of 0.2-2 ng/mL (Routinely tested).

  • 백그라운드
    T-cell-specific surface glycoprotein CD28 is also known as TP44, is a single-pass type I membrane protein which contains one Ig-like V-type (immunoglobulin-like) domain. is one of the molecules expressed on T cells that provide co-stimulatory signals, which are required for T cell activation. CD28 is the receptor for CD80 (B7.1) and CD86 (B7.2). When activated by Toll-like receptor ligands, the CD80 expression is upregulated in antigen presenting cells (APCs). The CD86 expression on antigen presenting cells is constitutive. CD28 is the only B7 receptor constitutively expressed on naive T cells.
  • Clinical and Translational Updates
      
  • Please contact us via TechSupport@acrobiosystems.com if you have any question on this product.

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