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Key Documents

MABF558

Sigma-Aldrich

Anti-CD28 Antibody (human), PE, clone CD28.2

clone CD28.2, from mouse

Synonym(s):

T-cell-specific surface glycoprotein CD28, TP44, CD antigen CD28

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About This Item

UNSPSC Code:
12352203
eCl@ss:
32160702
NACRES:
NA.41

biological source

mouse

Quality Level

conjugate

PE

antibody form

purified antibody

antibody product type

primary antibodies

clone

CD28.2, monoclonal

species reactivity

human

packaging

pkg of 5 μL (0.25 μg/test)

technique(s)

flow cytometry: suitable
immunohistochemistry: suitable
immunoprecipitation (IP): suitable

isotype

IgG1κ

UniProt accession no.

shipped in

wet ice

target post-translational modification

unmodified

Gene Information

human ... CD28(940)

General description

The CD28.2 antibody reacts with human CD28, a 44 kDa type I surface glycoprotein which acts as a co-stimulatory receptor in support of the T cell receptor (TCR). CD28 exists as a homodimer with specificity for two known ligands, known as B7-1 (CD80) and B7-2 (CD86), which are expressed on activated B cells and antigen-presenting cells. These ligands trigger CD28 signaling in concert with TCR activation to drive T cell proliferation, induce high-level expression of IL-2, impart resistance to apoptosis, and enhance T cell cytotoxicity. The interaction / co-stimulatory signaling between the B7 ligands and CD28 provides crucial communication between T cells and B cells or APCs to coordinate the adaptive immune response. Other members of the CD28 family of receptors include CTLA-4 (CD152), PD-1 (CD279), ICCOS and BTLA.The CD28.2 antibody may be used as a phenotypic marker for human CD28, expressed on all CD4+ T cells and CD8+ T cells, and is widely used as a reagent for activation of the CD28 receptor in vitro and in vivo. This antibody is also reported to be cross-reactive with several non-human species, including Baboon, Chimpanzee, Cynomolgus, and Rhesus.
This mouse monoclonal antibody Anti-CD28 (human), PE, clone CD28.2 validated for use in IP, IHC & Flow Cytometry for the detection of CD28.

Quality

The monoclonal antibody was purified from tissue culture supernatant via affinity chromatography. The purified antibody was conjugated under optimal conditions, with unreacted dye removed from the preparation.

Flow Cytometry Analysis: 0.25 µg of this antibody detected CD28 in one million human peripheral blood lymphocytes.

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Storage Class Code

12 - Non Combustible Liquids

WGK

nwg


Certificates of Analysis (COA)

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