p-CD28 (Y218) Peptide 
Datasheet
COA
MSDS
SHIP
Product Name :
p-CD28 (Y218) Peptide Applications :
Blocking Background :
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. Alternative Name :
T-cell-specific surface glycoprotein CD28; TP44 Swiss-Prot :
P10747 Product :
1 mg/ml in DI water. Purification&Purity :
Synthetic peptide p-CD28 (Y218). (Note: the amino acid sequence is proprietary). The purity is > 98%. Storage&Stability :
Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze-thaw cycles. Specificity :
This peptide can be used with studies using BS4665 p-CD28 (Y218) pAb.
p-CD28 (Y218) Peptide Applications :
Blocking Background :
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. Alternative Name :
T-cell-specific surface glycoprotein CD28; TP44 Swiss-Prot :
P10747 Product :
1 mg/ml in DI water. Purification&Purity :
Synthetic peptide p-CD28 (Y218). (Note: the amino acid sequence is proprietary). The purity is > 98%. Storage&Stability :
Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze-thaw cycles. Specificity :
This peptide can be used with studies using BS4665 p-CD28 (Y218) pAb.
Blocking peptide available as BS4665PP