T cell activation and immune function are regulated by the innate immune system through positive and negative costimulatory proteins. One such protein, B7-H4 (B7-homolog 4), belongs to the B7 immunoglobulin superfamily of ligand-lymphocyte interacting proteins. Expressed primarily on the membrane of lymphoid cells, B7-H4 is an immuno-inhibitory protein that interacts with receptors on the surface of T lymphocytes, thus mediating cellular and humoral immune responses. Overexpression of the B7-H4 protein is associated with certain malignancies, including ovarian and breast cancer, as its interaction with T cells suppresses tumor-associated immunity. Current research suggests that, similar to Mucin 16 (CA-125), B7-H4 may be a useful biomarker for the early detection of ovarian cancer.
Formulation
1 mg/ml in 1X PBS; BSA free, sodium azide free
Host
Rabbit
Immunogen Region
A recombinant human partial protein was used as the immunogen for this recombinant B7-H4 antibody.
Isotype
Rabbit IgG, kappa
Species Reactivity
Human
Note
Optimal dilution of the recombinant H7-B4 antibody should be determined by the researcher.
Uniprot
Q7Z7D3
Format
Purified
Purity
Protein A affinity
Storage
Store the recombinant B7-H4 antibody at 2-8oC (with azide) or aliquot and store at -20oC or colder (without azide).
Applications
ELISA, FACS, IF, IHC-P
Description
ELISA: 2-4ug/ml (order BSA/azide-free format),Flow cytometry: 1-2ug/million cells,Immunofluorescence: 1-2ug/ml,Immunohistochemistry (FFPE): 1-2ug/ml for 30 min at RT