Omburtamab
Based on 1 Customer Validation
Omburtamab (Mab 8H9) is a mouse monoclonal immunoglobulin G1 (IgG1) antibody targeting B7-H3. Omburtamab specifically binds to the glycoprotein antigen B7-H3, which is widely expressed on the surface of tumor cells. As a targeting carrier for recombinant toxins, it delivers PE38 to inhibit cellular protein synthesis and induce cytotoxicity in antigen-expressing cancer cells. Omburtamab can be used in research related to glioma, breast cancer, osteosarcoma and neuroblastoma.
For research use only. We do not sell to patients.
- Purity: 99.16%
- CAS No.: 1895083-75-6
- Molecular Weight:144.98 kDa
-
Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
Biological Activity
Mouse IgG2a kappa
Mouse
B7-H3/CD276
-
Cell Line:CRL1427 and other tumor cell lines
-
Concentration:15 mg/ml
-
Incubation Time:1 h
-
Result:Exhibited moderate to strong immunofluorescence binding reactivity on the tested tumor cell membranes.
-
Cell Line:U2OS and NMB7
-
Concentration:15 mg/ml
-
Incubation Time:1, 2, 4, 8, 12, 24, 36, 48 h
-
Result:Did not show a significant loss of binding during the 48-hour culture period, indicating it is not easily modulated off or internalized from the cell surface.
-
Cell Line:NMB7, LAN-1, HTB82, U2OS, HeLa, 293
-
Concentration:1 mg
-
Incubation Time:16 h
-
Result:Specifically immunoprecipitated a broad band protein of approximately 90 kDa (a single 58 kDa band after N-glycanase treatment).
-
Animal Model:Female athymic nude mice (6-8 weeks old) were subcutaneously implanted in the flank with 5 x 106 LAN-1 neuroblastoma cells[4]
-
Dosage:50 μCi, corresponding to 13-30 μg
-
Administration:i.v.; single dose; 48 h
-
Result:Exhibited excellent in vivo tumor-targeting specificity.
| NCT Number | Sponsor | Condition | Start Date |
Phase
|
|---|---|---|---|---|
| NCT01329991 | Plexxikon| | 2011-05 | PHASE1 |
Unconjugated
The product can be reconstituted/diluted with sterile PBS or saline.
-
IgG1-kappa
ELISA, FACS, Functional assay
-
Immobilized CD276/B7-H3 Protein, Human (433a.a, HEK293, His, HY-P70652) can bind Omburtamab. The EC50 for this effect is 45.43 ng/mL. -
Flow cytometric analysis of 1.5×106 THP-1 cells with Omburtamab (HY-P99157, red). Cells were fixed with 4% paraformaldehyde and permeabilised with 90% methanol. Then stained with the primary antibody at 1/200 dilution for an hour at 4℃. Alexa Goat Anti-Human IgG H&L (AF488) (HY-P83776) was used as the secondary antibody at 1/1,000 dilution for 30 minutes at 4℃. Human IgG1 kappa Isotype Control (HY-P99001, blue) was used as the isotype control, cells without incubation with primary antibody were used as the unlabeled control (black).
Chemical Information
-
CAS No. 1895083-75-6
-
Appearance Liquid
-
Molecular Weight 144.98 kDa
-
Color Colorless to light yellow
-
SMILES
[Omburtamab]
-
Synonyms
Mab 8H9
-
Shipping
Shipping with dry ice.
-
Formulation
Please refer to the lot-specific COA for specific buffer information.
-
Storage
Please store the product under the recommended conditions in the Certificate of Analysis.
Purity & Documentation
-
Data Sheet (272 KB)
-
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)
-
Inhibitory Antibodies User Guide (603 KB)
References
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)