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Biotinylated Human B7-H3 (4Ig) /B7-H3b Protein 5215



  • Expression: HEK293
  • Functional: Yes (ELISA)
  • Amino Acid Range: Gly27-Thr461
Weight1 lbs
Dimensions9 × 5 × 2 in
product tag

C-His-Avi, also biotinylated

Biotinylated Human B7-H3 (4Ig) /B7-H3b Protein 5215

Size and concentration
100, 500µg and lyophilized
Storage Instructions
Valid for 12 months from date of receipt when stored at -80°C. Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.
Storage buffer
Shipped at ambient temperature.
> 95% as determined by Tris-Bis PAGE
target relevance
B7-H3, a member of the B7 family of immunomodulatory molecules, is overexpressed in a wide range of solid cancers.B7-H3 binds to activated T cells via an as yet unidentified receptor. In assays using sub-optimal amount so anti-CD3 stimulation, 2Ig‑B7‑H3 enhances T cell proliferation, T cell interferon-gamma (IFN-gamma) production, and cytotoxic T cells induction.
Protein names
CD276 antigen (4Ig-B7-H3) (B7 homolog 3) (B7-H3) (Costimulatory molecule) (CD antigen CD276)
Gene names
CD276,CD276 B7H3 PSEC0249 UNQ309/PRO352
Protein family
Immunoglobulin superfamily, BTN/MOG family
FUNCTION: May participate in the regulation of T-cell-mediated immune response. May play a protective role in tumor cells by inhibiting natural-killer mediated cell lysis as well as a role of marker for detection of neuroblastoma cells. May be involved in the development of acute and chronic transplant rejection and in the regulation of lymphocytic activity at mucosal surfaces. Could also play a key role in providing the placenta and fetus with a suitable immunological environment throughout pregnancy. Both isoform 1 and isoform 2 appear to be redundant in their ability to modulate CD4 T-cell responses. Isoform 2 is shown to enhance the induction of cytotoxic T-cells and selectively stimulates interferon gamma production in the presence of T-cell receptor signaling. {ECO:0000269|PubMed:11224528, ECO:0000269|PubMed:12906861, ECO:0000269|PubMed:14764704, ECO:0000269|PubMed:15314238, ECO:0000269|PubMed:15682454, ECO:0000269|PubMed:15961727}.
Subellular location
SUBCELLULAR LOCATION: Membrane {ECO:0000305}; Single-pass type I membrane protein {ECO:0000305}.
TISSUE SPECIFICITY: Ubiquitous but not detectable in peripheral blood lymphocytes or granulocytes. Weakly expressed in resting monocytes. Expressed in dendritic cells derived from monocytes. Expressed in epithelial cells of sinonasal tissue. Expressed in extravillous trophoblast cells and Hofbauer cells of the first trimester placenta and term placenta. {ECO:0000269|PubMed:11224528, ECO:0000269|PubMed:14764704, ECO:0000269|PubMed:15961727, ECO:0000269|PubMed:16049332, ECO:0000269|PubMed:16274630}.
SUBUNIT: Interacts with TREML2 and this interaction enhances T-cell activation. {ECO:0000269|PubMed:18650384}.
Target Relevance information above includes information from UniProt accession : Q5ZPR3
The UniProt Consortium


ELISA with Biotinylated Human B7-H3 (4Ig) /B7-H3b Protein
Immobilized Anti-B7-H3 Antibody, hFc Tag at 2µg/ml (100µl/Well) on the plate. Dose response curve for Biotinylated Human B7-H3 (4Ig) , His Tag with the EC50 of 8.8ng/ml determined by ELISA.
HPLC of Biotinylated Human B7-H3 (4Ig) /B7-H3b Protein
The purity of Biotinylated Human B7-H3 (4Ig) is greater than 95% as determined by SEC-HPLC.
SDS-PAGE gel of Biotinylated Human B7-H3 (4Ig) /B7-H3b Protein
Biotinylated Human B7-H3 (4Ig) on Tris-Bis PAGE under reduced condition. The purity is greater than 95%.


Published literature highly relevant to the biological target of this product and referencing this antibody or clone are retrieved from PubMed database provided by The United States National Library of Medicine at the National Institutes of Health.



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