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CD28 Protein (CD28) (AA 19-152) (Fc Tag)

This Recombinant CD28 protein is produced in HEK-293 Cells. There is 1 publication available.
Catalog No. ABIN6253669
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Quick Overview for CD28 Protein (CD28) (AA 19-152) (Fc Tag) (ABIN6253669)

Target

See all CD28 Proteins
CD28

Protein Type

Recombinant

Biological Activity

Active

Origin

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Human, Cynomolgus, Rhesus Monkey

Source

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HEK-293 Cells

Purity

>95 % as determined by SDS-PAGE.
  • Protein Characteristics

    AA 19-152

    Purification tag / Conjugate

    This CD28 protein is labelled with Fc Tag.

    Sequence

    AA 19-152

    Characteristics

    This protein carries a mouse IgG2a Fc tag at the C-terminus. The protein has a calculated MW of 42.0 kDa. The protein migrates as 50-66 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

    Endotoxin Level

    Less than 0.1 EU per μg by the LAL method.
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  • Restrictions

    For Research Use only
  • Format

    Lyophilized

    Buffer

    50 mM Tris, 100 mM Glycine, pH 7.5

    Handling Advice

    Please avoid repeated freeze-thaw cycles.

    Storage

    -20 °C
  • Zhao, Lee, Lin, Gassen, Xu, Huang, Xiao, Bonorino, Lu, Bui, Hui: "PD-L1:CD80 Cis-Heterodimer Triggers the Co-stimulatory Receptor CD28 While Repressing the Inhibitory PD-1 and CTLA-4 Pathways." in: Immunity, Vol. 51, Issue 6, pp. 1059-1073.e9, (2019) (PubMed).

  • Target

    CD28

    Alternative Name

    CD28

    Background

    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.

    Molecular Weight

    42.0 kDa

    NCBI Accession

    NP_006130

    Pathways

    TCR Signaling, Fc-epsilon Receptor Signaling Pathway, EGFR Signaling Pathway, Regulation of Leukocyte Mediated Immunity, Positive Regulation of Immune Effector Process, Production of Molecular Mediator of Immune Response
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