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| Product Name | Recombinant Human B-Cell Activating Factor (TNFSF13B/BAFF), Partial, Active |
| Catalog No. | PTR-HMM-0171 |
| Description | Active human TNFSF13B fragment corresponding to residues 134-285, produced in mammalian cells with an N-terminal hFc tag. Functional interaction with BCMA and TNFRSF13C has been confirmed. |
| Intended Use | BAFF receptor interaction studies, functional ELISA, LSPR, cytokine research, and assay development. |
| Principle / Technology | A defined recombinant protein region is expressed and purified, then its structural integrity and target-binding function are evaluated using the listed biochemical binding assays. |
| Detection Method | SDS-PAGE; SEC-HPLC; functional ELISA; LSPR |
| Sample Type | Purified recombinant protein |
| Performance Range / Specifications | >=90% by SDS-PAGE; >=90% by SEC-HPLC; calculated molecular weight 46.6 kDa; package options: 10 ug; 20 ug; 50 ug; 100 ug; 200 ug; 500 ug; 1 mg. |
| Sensitivity / LOD | Functional ELISA showed binding to human BCMA with an EC50 of 221.3-298.6 ng/mL and to TNFRSF13C with an EC50 of 9.943-15.72 ng/mL. LSPR measured a BCMA binding affinity of 39 nM. |
| Specificity | Binds human BCMA and TNFRSF13C. |
| Reaction Conditions / Protocol | Briefly centrifuge the vial before opening. Reconstitute with sterile deionized water to 0.1-1.0 mg/mL. For long-term storage, add 5-50% glycerol as appropriate, divide into aliquots, and freeze. |
| Components / Formulation | Tris- or PBS-based buffer containing 6% trehalose before lyophilization |
| Storage Conditions | Store at -20 C or -80 C upon receipt. Aliquot before repeated use and avoid repeated freeze-thaw cycles. |
| Shelf Life | Typical stability is 6 months for liquid material and 12 months for lyophilized material when stored at -20 C or -80 C. |
| Package Specifications | 10 ug; 20 ug; 50 ug; 100 ug; 200 ug; 500 ug; 1 mg |
| Product Form | Lyophilized powder |
| Quality Control | Purity evaluated by SDS-PAGE and SEC-HPLC; endotoxin tested by LAL assay; biological activity verified by functional ELISA, LSPR. |
| Key Features | Active Human recombinant protein; 134-285 aa expression region; Mammalian cell expression; N-terminal hFc tag; >=90% by SDS-PAGE; >=90% by SEC-HPLC; low endotoxin. |
| Purity | >=90% by SDS-PAGE; >=90% by SEC-HPLC |
| Activity / Unit Definition | Functional ELISA showed binding to human BCMA with an EC50 of 221.3-298.6 ng/mL and to TNFRSF13C with an EC50 of 9.943-15.72 ng/mL. LSPR measured a BCMA binding affinity of 39 nM. |
| Molecular Weight | 46.6 kDa |
| Source / Origin | Human protein produced in Mammalian cell. |
| Expiration Date / Stability | Typical stability is 6 months for liquid material and 12 months for lyophilized material when stored at -20 C or -80 C. |
| Regulatory / Compliance | For research use only; not for clinical diagnosis or treatment. |
| Compatibility | BAFF receptor interaction studies, functional ELISA, LSPR, cytokine research, and assay development. |
| Recommended Buffer System | Tris- or PBS-based buffer containing 6% trehalose before lyophilization |
| Application Notes / Precautions | Avoid repeated freezing and thawing. A working aliquot may be kept at 4 C for up to one week. |
| Alternative Names / Synonyms | B lymphocyte stimulator (BLyS); B-cell-activating factor (BAFF); Dendritic cell-derived TNF-like molecule; TNF- and APOL-related leukocyte expressed ligand 1 (TALL-1) |
| Lead Time | 3-7 business days |
| Availability Status | In Stock |
| Host Species | Human |
| Tag Information | N-terminal hFc tag |
| Amino Acid Sequence | AVQGPEETVTQDCLQLIADSETPTIQKGSYTFVPWLLSFKRGSALEEKENKILVKETGYFFIYGQVLYTDKTYAMGHLIQRKKVHVFGDELSLVTLFRCIQNMPETLPNNSCYSAGIAKLEEGDELQLAIPRENAQISLDGDVTFFGALKLL |
| UniProt Accession | Q9Y275 |
| Protein Length | 152 amino acids |
| Expression Region | 134-285 aa |
| Endotoxin Level | <1.0 EU/ug by LAL assay |
For research use only, not for clinical use.
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