Product Details
Synonyms
4Ig-B7-H3, B7-H3, CD276, PSEC0249, UNQ309, PRO352, B7 homolog 3
Source
Cynomolgus B7-H3 (4Ig) Protein, His Tag (B73-C52Ha) is expressed from human 293 cells (HEK293). It contains AA Leu 29 - Glu 465 (Accession # XP_015308534.1).
Predicted N-terminus: Leu 29
Request for sequenceMolecular Characterization

Other Tags and Version Biotin & Other Labeled Version
This protein carries a polyhistidine tag at the C-terminus.
The protein has a calculated MW of 49.0 kDa. The protein migrates as 65-80 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.
Endotoxin
Less than 1.0 EU per μg by the LAL method / rFC method.
Purity
>95% as determined by SDS-PAGE.
>95% as determined by SEC-MALS.
Formulation
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.
Contact us for customized product form or formulation.
Reconstitution
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
Shipping and Storage
This product is shipped at ambient temperature.
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
- -20°C to -70°C for 12 months in lyophilized state;
- -70°C for 3 months under sterile conditions after reconstitution.
ACRO Quality Management System
Customers Also Viewed
Performance Data
SDS-PAGE

Cynomolgus B7-H3 (4Ig) Protein, His Tag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95% (With Star Ribbon Pre-stained Protein Marker).
SEC-MALS

The purity of Cynomolgus B7-H3 (4Ig) Protein, His Tag (Cat. No. B73-C52Ha) is more than 95% and the molecular weight of this protein is around 50-80 kDa verified by SEC-MALS.
Report
Bioactivity-ELISA

Immobilized Cynomolgus B7-H3 (4Ig) Protein, His Tag (Cat. No. B73-C52Ha) at 2 μg/mL (100 μL/well) can bind Monoclonal Anti-Human B7-H3 / B7-H3 (4Ig) Antibody, Human IgG1 with a linear range of 0.1-4 ng/mL (QC tested).
Protocol
Bioactivity-SPR

Monoclonal Anti-Human B7-H3 / B7-H3 (4Ig) Antibody, Human IgG1 captured on Protein A Chip can bind Cynomolgus B7-H3 (4Ig) Protein, His Tag (Cat. No. B73-C52Ha) with an affinity constant of 7.92 nM as determined in SPR assay (Biacore 8K) (Routinely tested).
Protocol
Customer Reviews Writing Reviews

FAQ
- Product
What is the difference between Human B7-H3 and Human B7-H3 (4Ig)?
The Human B7-H3 protein with an expression range of Leu29–Pro245 contains a single pair of immunoglobulin-like V and C domains. The product with an expression range of Gly27–Thr461, named B7-H3 (4Ig), includes the entire extracellular region.
Background
Recent Advances
- English Name:
CD276 antigen
- Category:
- Approved Drugs:
0 Details
- Drugs in Clinical Trials:
72 Details
- Highest Development Stage:
NDA/BLA
[North America]: +1 800-810-0816
[Switzerland]: +41 800 040 012
[Asia & Pacific]: +86 400-682-2521



















