CD276 [B7-H3] (human) (rec.)

CHF 380.00
In stock
CHI-HF-200B7H3-C05050 µgCHF 380.00
More Information
Product Details
Synonyms B7-H3
Product Type Protein
Properties
Source/Host HEK 293 cells
Sequence

The extracellular domain of human CD276 [B7-H3] (aa 29-245) is untagged.

Crossreactivity Human
Biological Activity

Measured by its ability to inhibit anti-CD3-induced proliferation of stimulated human T cells.

MW ~35kDa (SDS-PAGE)
Purity ≥95% (SDS-PAGE)
Endotoxin Content <1EU/mg protein (LAL test; Lonza).
Reconstitution Reconstitute 50µg vial with 100 µl sterile water to a concentration of 0.5mg/ml.
Add 1X PBS to the desired protein concentration.
Formulation Lyophilized from 0.2μm-filtered solution in PBS.
Other Product Data

NCBI reference NP_079516.1: CD276 (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.
PBS containing at least 0.1% BSA should be used for further dilutions.
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
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Product Specification Sheet
Datasheet Download PDF

CD276 (B7-H3) is a member of the B7/CD28 superfamily of costimulatory molecules serving as an accessory modulator of T cell response. B7 family molecules, which are expressed on antigen-presenting cells and display extracellular regions containing immunoglobulin (Ig) variable (V)- and constant (C)-like domains, are known to modulate T cell receptor (TCR)-mediated T cell activation by providing co-signals that are either stimulatory or inhibitory. B7-H3 provides a stimulatory signal to T cells. However, recent studies suggest a negative regulatory role for B7-H3 in T cell responses. B7-H3 inhibited T cell proliferation mediated by antibody to T cell receptor or allogeneic antigen-presenting cells. B7-H3 is a negative regulator that preferentially affects T(H)1 responses. B7-H3 may play an important role in muscle-immune interactions, providing further evidence of the active role of muscle cells in local immunoregulatory processes. Recently, B7-H3 expression has also been found in a variety of different human cancers, including prostate cancer, clear cell renal cell carcinoma (ccRCC), non-small-cell lung cancer (NSCLC), pancreatic cancer, gastric cancer, ovarian cancer, colorectal cancer (CRC) and urothelial cell carcinoma. B7-H3 was expressed in some human cancers and correlated with poor outcome of cancer patients.

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