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Description
B7-H3/CD276 Fc Chimera Protein, MouseProduct Specification Species Mouse Synonyms B7 H3, CD276; B7H3, B7 H3, CD276 antigen, CD276 molecule, CD276, B7H34Ig B7 H3, B7 H3B7 homolog 3, Costimulatory molecule Accession Q8VE98 Amino Acid Sequence Val29 Phe244, with hIgG Fc Expression System HEK293 Molecular Weight 65 80kDa (Reducing) Purity 95% by SDS PAGE & 95% by SEC HPLC Endotoxin <0. 1EU g Conjugation Unconjugated Physical Appearance Lyophilized Powder Storage Buffer PBS, PH7. 4, 5%
Product Specification
| Species | Mouse |
| Synonyms | B7-H3, CD276; B7H3, B7-H3, CD276 antigen, CD276 molecule, CD276, B7H34Ig-B7-H3, B7-H3B7 homolog 3, Costimulatory molecule |
| Accession | Q8VE98 |
| Amino Acid Sequence | Val29-Phe244, with hIgG Fc |
| Expression System | HEK293 |
| Molecular Weight | 65-80kDa (Reducing) |
| Purity | ＞95% by SDS-PAGE & ＞95% by SEC-HPLC |
| Endotoxin | <0.1EU/μg |
| Conjugation | Unconjugated |
| Physical Appearance | Lyophilized Powder |
| Storage Buffer | PBS, PH7.4, 5% trehalose |
| Reconstitution | Reconstitute at 0.1-1 mg/ml according to the size in ultrapure water after rapid centrifugation. |
| Stability & Storage | · 12 months from date of receipt, lyophilized powder stored at -20 to -80℃. · 3 months, -20 to -80℃ under sterile conditions after reconstitution. · 1 week, 2 to 8℃ under sterile conditions after reconstitution. · Please avoid repeated freeze-thaw cycles. |
| Reference | Review Front Immunol . 2021 Jul 19:12:701006.eCollection 2021. |
Background
B7 homolog 3 (B7-H3, CD276) is a member of the B7 family of cell surface ligands that regulate T cell activation and immune responses. B7-H3 protein contains two extracellular Ig-like V-type domains and two IgG-like C2-type domains, a transmembrane domain, and a short intracellular domain. Early research examining the biological process of B7-H3 suggested that B7-H3 is a positive regulator of T cell response. Subsequent research studies indicated that B7-H3 is a negative regulator of T cell response, and that the protein inhibits T cell proliferation. One possibility is that B7-H3 interacts with two distinct sets of receptors, resulting in seemingly opposite biological outcomes. B7-H3 is expressed by antigen presenting cells, activated T cells, and a few normal tissues, including placenta and prostate. Expression of B7-H3 is seen in several cancer types, including prostate, breast, colon, lung, and gastric cancers, and in endothelial cells from tumor associated vasculature
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