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- SPECIES: Human
- SOURCE SPECIES: CHO cells
- RECOMBINANT PROTEIN SEQUENCE: The extracellular domain of human B7-H4 (aa 29-258) is fused to the N-terminus of the Fc region of mouse IgG2a.
- FUSION TAG: Fc Tag
- APPLICATION NOTE: This recombinant proteins is for research use only.
- BIOLOGICAL ACTIVITY: Measured by the ablility to inhibit anti-CD3-induced proliferation of stimulated human T cells.
Properties
- PURITY: ≥98% (SDS-PAGE).
Endotoxin level is less than 0.06EU/ μg protein (LAL test; Lonza). - PHYSICAL STATE: Lyophilized
- BUFFER: Lyophilized from 0.2um-filtered solution in PBS. Reconstitute with 100 μl sterile water. Add 1X PBS to the desired protein concentration.
- STORAGE CONDITIONS: Stable for at least 1 year after receipt when stored at -20°C. Working aliquots are stable for up to 3 months when stored at -20°C.
Additional Info
- NCBI OFFICIAL SYMBOL: VTCN1
- ADDITIONAL NAMES: V-set Domain-containing T Cell Activation Inhibitor 1, VTCN1, B7h.5, Immune Costimulatory Protein B7-H4, T Cell Costimulatory Molecule B7x, Protein B7S1
- Protein Accession Number: NP_078902
- PROTEIN GI NUMBER: 99028881
- NCBI GENE ID NUMBER: 79679
Background
- B7-H4 is a B7 family member that negatively regulates T cell immunity by inhibiting of T cell proliferation, cytokine production and cell cycle progression. In vitro, B7-H4 inhibits CD4+ and CD8+ T cell proliferation, cytokine production and generation of alloreactive cytotoxic T cells (CTLs). In vivo, blockade of endogenous B7-H4 by specific monoclonal antibody promotes T cell responses. B7-H4 ia an important negative regulator of innate immunity through growth inhibition of neutrophils. B7-H4 is expressed on some tumor cancer cells. The role of B7-H4 in tumor progression may be to transform precancerous cells and then protect them from immunosurveillance.
Disclaimer
- FOR RESEARCH USE ONLY
For additional information, visit ProSci's Terms & Conditions Page. - Disclaimer: Products are intended for laboratory research purposes only and should be used by qualified personnel only. They are not intended for use in humans. ProSci is not liable for damages or injuries resulting from receipt and/or use of ProSci materials. Please refer to the Material Safety Data Sheet (MSDS) for safe storage, handling, and use procedures.
Shipping Info
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