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 CTLA-4 (cytotoxic T lymphocyte-associated protein-4) and CD28 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 counter receptor for CD28 and CTLA-4 that is expressed on the antigen-presenting cell.
Formulation
1 mg/ml in 1X PBS; BSA free, sodium azide free
Host
Mouse
Immunogen Region
A recombinant human partial protein (amino acids 35-142) was used as the immunogen for this CD80 antibody.
Isotype
Mouse IgG2b, kappa
Species Reactivity
Human
Note
Optimal dilution of the antibody should be determined by the researcher.
Uniprot
P33681
Format
Purified
Purity
Protein G affinity chromatography
Storage
Store the CD80 antibody at 2-8oC (with azide) or aliquot and store at -20oC or colder (without azide).