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Invitrogen
B7-H4 Monoclonal Antibody (188), eBioscience™
FIGURE: 1 / 1
B7-H4 Antibody (14-5972-82) in Flow
Staining of non-transfected (left) and mouse B7-H4 transfected (right) L5178Y cells with 0.25 µg Rat IgG2b kappa Isotype Control Purified (Product # 14-4031-82) (open histogram) or 0.25 µg Anti-Mouse B7-H4 Purified (filled histogram) followed by Anti-Rat IgG Biotin (Product # 13-4813-85) and Streptavidin PE (Product # 12-4317-87). Total viable cells were used for analysis.
Product Details
14-5972-82
Applications
Tested Dilution
Publications
Product Specifications
Species Reactivity
Mouse
Published species
Mouse
Host/Isotype
Rat
/ IgG2b, kappa
Class
Monoclonal
Type
Antibody
Clone
188
Conjugate
Form
Liquid
Concentration
0.5 mg/mL
Purification
Affinity chromatography
Storage buffer
PBS, pH 7.2
Contains
0.09% sodium azide
Storage conditions
4° C
Shipping conditions
Ambient (domestic); Wet ice (international)
RRID
AB_467769
Product Specific Information
Description: The 188 monoclonal antibody was generated against and reacts with mouse B7-H4 also known as B7S1, B7X. Cross reactivity of this antibody to other proteins has not been determined. B7-H4 is a newly discovered member of the B7 family reported to inhibit T cell activation, cell cycle progression and IL-2 production. The ligand for B7-H4 has not been identified yet. Simultaneous double staining of cells with two anti-mouse B7-H4 antibodies, Clone 9 and 188, suggests that epitopes recognized by these mAbs are different and/or there is no steric hindrance when antibodies are used together. 188 stains mouse B7-H4 transfected cells and not spleen cells. Exact expression pattern of B7-H4 has not been fully characterized.
Applications Reported: The 188 antibody has been reported for use in flow cytometric analysis.
Applications Tested: The 188 antibody has been tested by flow cytometric analysis of transfected cells. This can be used at less than or equal to 0.5 µg per test. A test is defined as the amount (µg) of antibody that will stain a cell sample in a final volume of 100 µL. Cell number should be determined empirically but can range from 10^5 to 10^8 cells/test. It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest.
Purity: Greater than 90%, as determined by SDS-PAGE.
Aggregation: Less than 10%, as determined by HPLC.
Filtration: 0.2 µm post-manufacturing filtered.
Target Information
B7-H4 (B7x, VTCN1) a costimulatory protein which is reported to function as a negative regulator of T-cell mediated immunity. Although B7-H4 binds an unknown receptor, it is thought to deliver an inhibitory signal to T-cells preventing their proliferation, cell cycle progression and interleukin-2 production. B7-H4 deficient mice are only minimally affected; suggesting B7-H4 is important in the fine tuning of the T-cell mediated immune response. B7-H4 is expressed on activated T-cells, B-cells, monocytes and dendritic cells. Aberrant expression has been associated with cancers of the lung, breast and ovary in humans. B7-H4 is expressed primarily on the membrane of lymphoid cells, and as an immunoinhibitory protein that interacts with receptors on the surface of T lymphocytes, it is involved in mediating cellular and humoral immune responses. Overexpression of B7-H4 is associated with certain malignancies, including ovarian and breast cancer, which may be a mechanism by which tumor cells suppress T cell immunity and facilitate tumor progression. Further, VTCN1 may be a useful biomarker for the early detection of ovarian cancer and Renal Cell Carcinoma (RCC).
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Bioinformatics
Protein Aliases: B7 homolog 4; B7-H4; FLJ22418; Immune costimulatory protein B7-H4; Protein B7S1; RP11-229A19.4; T cell costimulatory molecule B7x; V-set domain containing T-cell activation inhibitor 1; vtcn1
Gene Aliases: B7h4; B7s1; B7x; BC032925; Vtcn1
UniProt ID: (Mouse) Q7TSP5
Entrez Gene ID: (Mouse) 242122
Performance Guarantee
If an Invitrogen™ antibody doesn't perform as described on our website or datasheet,we'll replace the product at no cost to you, or provide you with a credit for a future purchase.*
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