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Invitrogen
B7-H4 Monoclonal Antibody (188), PE, eBioscience™
FIGURE: 1 / 1
B7-H4 Antibody (12-5972-82) in Flow
Staining of non-transfected (left) and mouse B7-H4-transfected (right) L5178Y cells with 0.25 µg of Rat IgG2b kappa Isotype Control PE (Product # 12-4031-82) (open histogram) or 0.25 µg of Anti-Mouse B7-H4 PE (filled histogram). Total viable cells were used for analysis.
Product Details
12-5972-82
Applications
Tested Dilution
Publications
Product Specifications
Species Reactivity
Mouse
Published species
Mouse
Host/Isotype
Rat
/ IgG2b, kappa
Recommended Isotype Control
Class
Monoclonal
Type
Antibody
Clone
188
Conjugate
Excitation/Emission Max
565/576 nm
View spectra
Form
Liquid
Concentration
0.2 mg/mL
Purification
Affinity chromatography
Storage buffer
PBS, pH 7.2
Contains
0.09% sodium azide
Storage conditions
4°C, store in dark, DO NOT FREEZE!
Shipping conditions
Ambient (domestic); Wet ice (international)
RRID
AB_466076
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.
Excitation: 488-561 nm; Emission: 578 nm; Laser: Blue Laser, Green Laser, Yellow-Green Laser.
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.
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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
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