Antibody data

Product number
BS4665 - Provider product page
Provider
Bioworld Technology, Inc
Product name
CD28 (phospho Y218) polyclonal antibody
Antibody type
Polyclonal
Antigen
Synthetic phosphopeptide derived from human CD28 around the phosphorylation site of Serine 218.
Description
T cell proliferation and lymphokine production are triggered by occupation of the TCR by antigen, followed by a costimulatory signal that is delivered by a ligand expressed on antigen presenting cells. The B7-related cell surface proteins CD80 (B7-1) and CD86 (B7-2) are expressed on antigen presenting cells, bind the homologous T cell receptors CD28 and CTLA-4 (cytotoxic T lymphocyte-associated protein-4) and trigger costimulatory signals for optimal T cell activation. CTLA-4 shares 31% overall amino acid identity with CD28, and it has been proposed that CD28 and CTLA-4 are functionally redundant. SLAM is a novel receptor on T cells that, when engaged, potentiates T cell expansion in a CD28-independent manner. B7, also designated BB1, is another ligand or counterreceptor for CD28 and CTLA-4 that is expressed on the antigen-presenting cell.
Reactivity
Human, Mouse, Rat
Host
Rabbit
Isotype
IgG
Vial size
100ul
Concentration
1 mg/ml
Storage
Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze-thaw cycles.
CD28 protein structure - BS4665 shown in red.