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Your Position: Home > Immune Checkpoint Proteins > CD28 > Mouse CD28 Protein, His Tag

Mouse CD28 Protein, His Tag

  • Synonym
    CD28,Tp44
  • Source
    Mouse CD28, His Tag (CD8-M52H6) is expressed from human 293 cells (HEK293). It contains AA Asn 20 - Lys 149 (Accession # P31041-1).
    Predicted N-terminus: Asn 20
  • Molecular Characterization
    Online(Asn 20 - Lys 149) P31041-1

    This protein carries a polyhistidine tag at the C-terminus.

    The protein has a calculated MW of 16.9 kDa. The protein migrates as 30-35 kDa and 55 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

  • Endotoxin
    Less than 1.0 EU per μg by the LAL method.
  • Purity

    >90% as determined by SDS-PAGE.

  • Formulation

    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.

  • 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 was 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
Mouse CD28, His Tag (Cat. No. CD8-M52H6) SDS-PAGE gel

Mouse CD28, His Tag on SDS-PAGE under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 90%.

Bioactivity-ELISA
Mouse CD28, His TagMouse CD28, His Tag (Cat. No. CD8-M52H6) ELISA bioactivity

Immobilized Mouse CD28, His Tag (Cat. No. CD8-M52H6) at 5 μg/mL (100 μL/well) can bind Mouse B7-1, Fc Tag (Cat. No. CD0-M5259) with a linear range of 0.156-5 μg/mL (QC tested).

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