CD276/B7H3 Antibody (YA4334)
(Synonyms: B7H3; B7-H3; 4Ig-B7-H3; CD276)Based on 1 Customer Validation
CD276/B7H3 Antibody (YA4334) is a Mouse-derived and non-conjugated IgG1 monoclonal antibody, targeting to CD276/B7H3.
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Host:
Mouse
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Isotype:
IgG
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Application:
WB, IHC-P, ICC/IF, FC, ELISA
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Reactivity :
Human, Mouse, Rat, Rabbit, Monkey
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Formulation:
Supplied in PBS with 0.05% 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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ICC/IF
ICC/IF: Immunocytochemistry/
Immunofluorescence |
FC
FC: Flow Cytometry
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ELISA
ELISA: Enzyme Linked Immunosorbent Assay
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|---|---|---|---|---|---|
| Dilution Ratio | 1:500-1:2000 | 1:100-1:500 | 1:50-1:500 | 1:200-1:400 | 1:10000 |
Product Details
CD276/B7H3 Antibody (YA4334) is a Mouse-derived and non-conjugated IgG1 monoclonal antibody, targeting to CD276/B7H3.
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Host Mouse
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Clonality Monoclonal
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Species ReactivityHuman, Mouse, Rat, Rabbit, Monkey
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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.
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Calculated Molecular Weight Predicted band size: 57 kDa
Purified recombinant fragment of human CD276 aa 30-130.
affinity purified.
Non-conjugated
Unmodified
IgG
Product Properties
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Appearance
Solution
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Formulation
Supplied in PBS with 0.05% sodium azide.
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Concentration
Batch-dependent, Please check the COA for the concentration of each lot. Check Lot Concentration
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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.
Verification Images
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Western blot analysis was performed on protein extracts (30 μg) from HT-1080 (lane 2), SH-SY5Y (lane 3) and HeLa (lane 4) using CD276/B7H3 antibody. Proteins were transferred onto a 0.45 μm PVDF membrane using the Trans-Blot® Turbo™ system for 13 min. The membrane was then blocked with 5% nonfat milk in TBST (HY-K1025) for 1 h at room temperature. Thhe primary antibody (1:1000) and loading control antibody GAPDH Antibody (HRP) (HY-P80954A) (1:2500) were diluted in 5% nonfat milk in TBST and incubated with the membrane overnight at 4°C. After washing, the membrane of primary antibody was incubated with HRP-conjugated goat anti-mouse IgG (H&L) secondary antibody (HY-P8001) (1:5000) diluted in 5% nonfat milk in TBST for 1 h at room temperature. Protein bands were visualized using an Ultra High Sensitivity ECL detection kit (HY-K1005).
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Western blot analysis was performed on protein extracts (30 μg) from HepG2 (lane 2) and Caco-2 (lane 3) using CD276/B7H3 antibody. Proteins were transferred onto a 0.45 μm PVDF membrane using the Trans-Blot® Turbo™ system for 13 min. The membrane was then blocked with 5% nonfat milk in TBST (HY-K1025) for 1 h at room temperature. Thhe primary antibody (1:1000) and loading control antibody GAPDH Antibody (HRP) (HY-P80954A) (1:2500) were diluted in 5% nonfat milk in TBST and incubated with the membrane overnight at 4°C. After washing, the membrane of primary antibody was incubated with HRP-conjugated goat anti-mouse IgG (H&L) secondary antibody (HY-P8001) (1:5000) diluted in 5% nonfat milk in TBST for 1 h at room temperature. Protein bands were visualized using an Ultra High Sensitivity ECL detection kit (HY-K1005).
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Immunohistochemical analysis of paraffin-embedded human cervix tissue using CD276/B7H3 Antibody (HY-P84637, 1/500). The section was pretreated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) for 8 minutes. The tissues were blocked with quick block buffer for 0.5 hours at room temperature, washed with PBS and PBST, and then incubated with the primary antibody overnight at 4℃. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
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Immunohistochemical analysis of paraffin-embedded human gallbladder tissue using CD276/B7H3 Antibody (HY-P84637, 1/500). The section was pretreated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) for 8 minutes. The tissues were blocked with quick block buffer for 0.5 hours at room temperature, washed with PBS and PBST, and then incubated with the primary antibody overnight at 4℃. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
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Immunohistochemical analysis of paraffin-embedded human tonsil tissue using CD276/B7H3 Antibody (HY-P84637, 1/500). The section was pretreated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) for 8 minutes. The tissues were blocked with quick block buffer for 0.5 hours at room temperature, washed with PBS and PBST, and then incubated with the primary antibody overnight at 4℃. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
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Immunohistochemical analysis of paraffin-embedded human thyroid gland tissue using CD276/B7H3 Antibody (HY-P84637, 1/500). The section was pretreated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) for 8 minutes. The tissues were blocked with quick block buffer for 0.5 hours at room temperature, washed with PBS and PBST, and then incubated with the primary antibody overnight at 4℃. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
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Immunohistochemical analysis of paraffin-embedded human adrenal gland tissue using CD276/B7H3 Antibody (HY-P84637, 1/500). The section was pretreated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) for 8 minutes. The tissues were blocked with quick block buffer for 0.5 hours at room temperature, washed with PBS and PBST, and then incubated with the primary antibody overnight at 4℃. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
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Immunohistochemical analysis of paraffin-embedded human endometrium tissue using CD276/B7H3 Antibody (HY-P84637, 1/500). The section was pretreated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) for 8 minutes. The tissues were blocked with quick block buffer for 0.5 hours at room temperature, washed with PBS and PBST, and then incubated with the primary antibody overnight at 4℃. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
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Immunohistochemical analysis of paraffin-embedded human Glioma tissue using CD276 theta antibody was performed. The section was pretreated using high-temperature mediated EDTA antigen retrieval buffer (pH 9.0), for 20 minutes. The tissues were incubated with primary antibody (HY-P84637, 1:100 dilution) at room temperature for 20 minutes. Detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. The tissues were counterstained with hematoxylin and mounted with neutral balsam mounting medium.
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Immunohistochemical analysis of paraffin-embedded human Liver cyst tissue using CD276 theta antibody was performed. The section was pretreated using high-temperature mediated EDTA antigen retrieval buffer (pH 9.0), for 20 minutes. The tissues were incubated with primary antibody (HY-P84637, 1:100 dilution) at room temperature for 20 minutes. Detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. The tissues were counterstained with hematoxylin and mounted with neutral balsam mounting medium.
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Immunohistochemical analysis of paraffin-embedded human Kimura's disease tissue using CD276 theta antibody was performed. The section was pretreated using high-temperature mediated EDTA antigen retrieval buffer (pH 9.0), for 20 minutes. The tissues were incubated with primary antibody (HY-P84637, 1:100 dilution) at room temperature for 20 minutes. Detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. The tissues were counterstained with hematoxylin and mounted with neutral balsam mounting medium.
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Immunohistochemical analysis of paraffin-embedded human Mucoepidermoid carcinoma tissue using CD276 theta antibody was performed. The section was pretreated using high-temperature mediated EDTA antigen retrieval buffer (pH 9.0), for 20 minutes. The tissues were incubated with primary antibody (HY-P84637, 1:100 dilution) at room temperature for 20 minutes. Detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. The tissues were counterstained with hematoxylin and mounted with neutral balsam mounting medium.
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Immunohistochemical analysis of paraffin-embedded human solitary fibrous tumor tissue using CD276 theta antibody was performed. The section was pretreated using high-temperature mediated EDTA antigen retrieval buffer (pH 9.0), for 20 minutes. The tissues were incubated with primary antibody (HY-P84637, 1:100 dilution) at room temperature for 20 minutes. Detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. The tissues were counterstained with hematoxylin and mounted with neutral balsam mounting medium.
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Immunohistochemical analysis of paraffin-embedded human cervical squamous cell carcinoma tissue using CD276 theta antibody was performed. The section was pretreated using high-temperature mediated EDTA antigen retrieval buffer (pH 9.0), for 20 minutes. The tissues were incubated with primary antibody (HY-P84637, 1:100 dilution) at room temperature for 20 minutes. Detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. The tissues were counterstained with hematoxylin and mounted with neutral balsam mounting medium.
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Flow cytometric analysis of 1X106 THP-1 cells labeling CD276/B7H3 Antibody (HY-P84637, red). Cells were stained with the primary antibody at 1/200 dilution for an hour at 4℃. AF488-conjugated Goat Anti-Mouse IgG H&L (HY-P8005) was used as the secondary antibody at 1/1,000 dilution for 30 minutes at 4℃. Mouse IgG Isotype Control (HY-P80757, blue) was used as the isotype control, cells without incubation with primary antibody were used as the unlabeled control (black).
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Flow cytometric analysis of 1X106 THP-1 cells labeling CD276/B7H3 Antibody (HY-P84637, red). Cells were stained with the primary antibody at 1/200 dilution for an hour at 4℃. AF488-conjugated Goat Anti-Mouse IgG H&L (HY-P8005) was used as the secondary antibody at 1/1,000 dilution for 30 minutes at 4℃. Mouse IgG Isotype Control (HY-P80757, blue) was used as the isotype control, cells without incubation with primary antibody were used as the unlabeled control (black).
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
B7H3; B7-H3; 4Ig-B7-H3; CD276
Documentation
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Data Sheet (259 KB)
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SDS (251 KB)
- English - EN (251 KB)
- Français - FR (251 KB)
- Deutsch - DE (251 KB)
- Norwegian - NO (251 KB)
- Español - ES (251 KB)
- Swedish - SV (251 KB)
- Italian - IT (251 KB)
- Korean - KR (251 KB)
- Portuguese - PT (251 KB)
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User Guide for Antibodies (1077 KB)