CD276/B7H3 Antibody (YA4779)
(Synonyms: CD276; B7H3; PSEC0249; CD276 antigen; 4Ig-B7-H3; B7 homolog 3; B7-H3; Costimulatory molecule; CD antigen CD276)CD276/B7H3 Antibody (YA4779) is a Mouse-derived and non-conjugated monoclonal antibody, targeting to CD276/B7H3.
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Host:
Mouse
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Application:
WB, IHC-P, ICC/IF, FC, ELISA
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Reactivity :
Human
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Formulation:
Supplied in PBS containing 50% glycerol, 0.5% BSA and 0.02% sodium azide.
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Conjugation:
Non-conjugated
Applications
| Application |
WB
WB: Western Blot
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IHC-P
IHC-P: Immunohistochemistry-Paraffin
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FC
FC: Flow Cytometry
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ELISA
ELISA: Enzyme Linked Immunosorbent Assay
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ICC/IF
ICC/IF: Immunocytochemistry/
Immunofluorescence |
|---|---|---|---|---|---|
| Dilution Ratio | 1:500-1:2000 | 1:200-1:1000 | 1:200-1:400 | 1:10000 | 1:50-200 |
Product Details
CD276/B7H3 Antibody (YA4779) is a Mouse-derived and non-conjugated monoclonal antibody, targeting to CD276/B7H3.
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Host Mouse
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Clonality Monoclonal
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Species ReactivityHuman
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Observed Molecular WeightObserved band size: 100 kDaNote: Due to possible protein modifications or aggregation, the molecular weight should be confirmed by actual measurement, and the predicted value is for reference only.
Purified recombinant fragment of human CD276 expressed in E. Coli.
affinity purified.
Non-conjugated
Unmodified
Product Properties
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Appearance
Solution
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Formulation
Supplied in PBS containing 50% glycerol, 0.5% BSA and 0.02% sodium azide.
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Storage & Stability
Stored at -20°C for 1 year. Avoid repeated freeze / thaw cycles.
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Shipping
Shipping with blue ice.
Background
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Function
CD276/B7-H3 is a member of the B7 family of immune checkpoint molecules and plays an important role in regulating immune responses. As a co-stimulatory/co-inhibitory protein, it affects both adaptive and innate immune responses. CD276/B7-H3 was first discovered on dendritic cells and is widely expressed in various tumor tissues, including breast cancer, lung cancer, ovarian cancer, and gastric cancer. Its upregulation is often associated with poor prognosis, increased tumor invasiveness, and metastasis. CD276/B7-H3 has a dual role in the immune system. It can act as a co-stimulatory molecule, enhancing T cell proliferation and cytotoxicity in certain cases, but it can also function as a co-inhibitory molecule by suppressing T cell activity and promoting immune evasion by tumors, thus contributing to tumor progression and metastasis. This dual function makes CD276/B7-H3 a promising target in cancer immunotherapy research. In the tumor microenvironment, its expression is linked to immune suppression, further promoting tumor growth and metastasis. Research strategies targeting B7-H3 include monoclonal antibodies, antibody-drug conjugates (ADC), bispecific antibodies, and chimeric antigen receptor (CAR) T cell therapies. These strategies have demonstrated promising results in preclinical studies, enhancing immune responses and inhibiting tumor growth in various tumor models[1].
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Subcellular Localization
Membrane; Single-pass type I membrane protein
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Expression
Tissue_specificity:It is ubiquitous but undetectable in peripheral blood lymphocytes or granulocytes. It is weakly expressed in resting monocytes. It is expressed in monocyte-derived dendritic cells. It is expressed in sinus epithelial cells. It is expressed in extravillous trophoblast cells and Hofbauer cells of the placenta in early pregnancy and at term.
Induction:By bacterial lipopolysaccharides (LPS) in monocytes and by ionomycin in T and B-lymphocytes. Up-regulated in cells mediating rejection of human transplants -
Isoforms & Post-Translational Modification
Q5ZPR3 has 4 isomers: Q5ZPR3-1: 57235 Da (predicted); Q5ZPR3-2: 33791 Da (predicted); Q5ZPR3-3: 52761 Da (predicted); Q5ZPR3-4: 57165 Da (predicted).
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Subunit
Interacts with TREML2 and this interaction enhances T-cell activation
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SwissProt ID
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Synonyms
CD276; B7H3; PSEC0249; CD276 antigen; 4Ig-B7-H3; B7 homolog 3; B7-H3; Costimulatory molecule; CD antigen CD276
Documentation