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Chimerigen
B7-H4 (human):Fc (human) (rec.)
460
CHF
CHF 460.00
In stock
CHI-HF-210B7H4-C100100 µgCHF 460.00
| Product Details | |
|---|---|
| Synonyms | V-set Domain-containing T Cell Activation Inhibitor 1; VTCN1; B7h.5; Immune Costimulatory Protein B7-H4; T Cell Costimulatory Molecule B7x; Protein B7S1 |
| Product Type | Protein |
| Properties | |
| Source/Host | CHO cells |
| Sequence |
The extracellular domain of human B7-H4 (aa 29-258) is fused to the N-terminus of the Fc region of human IgG1. |
| Crossreactivity | Human |
| Biological Activity |
Measured by the ablility to inhibit anti-CD3-induced proliferation of stimulated human T cells. Human T lymphocytes cultured for 72 hours with PHA were incubated for an additional 3 days in 96 well place coated with 500ng/ml anti-CD3 and 10μg/ml human B7H4/Fc. The presence of human B7H4/Fc at 10μg/ml inhibited anti CD3 response by 30-50%. Optimal dilutions should be determined by each laboratory for each application. |
| Purity | ≥98% (SDS-PAGE) |
| Endotoxin Content | <0.06EU/μg protein (LAL test; Lonza). |
| Reconstitution | Reconstitute with 100 µl sterile water. Add 1X PBS to the desired protein concentration. |
| Formulation | Lyophilized from 0.2μm-filtered solution in PBS. |
| Protein Negative Control | |
| Other Product Data |
NCBI reference NP_078902.2: B7-H4 (human) |
| Declaration | Manufactured by Chimerigen. |
| Shipping and Handling | |
| Shipping | BLUE ICE |
| Short Term Storage | +4°C |
| Long Term Storage | -20°C |
| Handling Advice |
Avoid freeze/thaw cycles. Centrifuge lyophilized vial before opening and reconstitution. |
| Use/Stability |
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. |
| Documents | |
| MSDS | Inquire |
| Product Specification Sheet | |
| Datasheet |
 Download PDF |
Description
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.
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