Thermo Fisher Scientific B7-H4 (Immuno-Inhibitory Protein) Recombinant Rabbit Monoclonal Antibody (B7H4, 2652R)

Applications

Tested Dilution

Publications

Immunohistochemistry (Paraffin) (IHC (P))

1-2 µg/mL

-

Immunocytochemistry (ICC/IF)

1-2 µg/mL

-

Flow Cytometry (Flow)

1-2 µg/10^6 cells

-

Product Specifications

Species Reactivity

Human

Host/Isotype

Rabbit / IgG

Expression System

HEK293 cells

Class

Recombinant Monoclonal

Type

Antibody

Clone

B7H4, 2652R

Immunogen

A recombinant fragment of human B7-H4 protein

Conjugate

Unconjugated Unconjugated Unconjugated

Form

Liquid

Concentration

1 mg/mL

Purification

Protein A/G

Storage buffer

PBS, pH 7.4

Contains

no preservative

Storage conditions

-20°C or -80°C if preferred

Shipping conditions

Ambient (domestic); Wet ice (international)

Product Specific Information

Antibody is tested in direct ELISA (Use Ab at 2-4 µg/mL for coating.

Immunohistochemistry (PFA fixed): incubate antibody for 30 min RT. Staining of formalin-fixed tissues requires heating tissue sections in 10mM Tris with 1mM EDTA, pH 9.0, for 45 min at 95 degrees C followed by cooling at RT for 20 minutes.

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.