Thermo Fisher Scientific SPIB Polyclonal Antibody
Rabbit polyclonal antibody recognizing Spi-B transcription factor. Validated for Western blot at 3–5 µg/mL. Reacts with multiple species including human and mouse. Supplied as a liquid, Protein A purified, stored in PBS with BSA and sodium azide.
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Applications
- Western Blot (WB): 3–5 µg/mL
Product Specifications
| 항목 | 내용 |
|---|---|
| Species Reactivity | Bovine, Dog, Horse, Human, Mouse, Non-human primate |
| Host / Isotype | Rabbit / IgG |
| Class | Polyclonal |
| Type | Antibody |
| Immunogen | A portion of amino acid 15–65 of human Spi-B |
| Conjugate | Unconjugated |
| Form | Liquid |
| Concentration | 0.5 mg/mL |
| Purification | Protein A |
| Storage Buffer | PBS with 0.05% BSA |
| Contains | 0.05% sodium azide |
| Storage Conditions | Store at 4°C short term. For long-term storage, store at -20°C, avoiding freeze/thaw cycles. |
| Shipping Conditions | Ambient (domestic); Wet ice (international) |
| RRID | AB_2541001 |
Target Information
Spi-B is a transcription factor belonging to the ETS family, containing a conserved ETS domain that mediates specific DNA binding. It may form homotypic interactions and interacts with IRF4, CREBBP, EP300, SPI1/PU.1, JUN, and TBP. As a sequence-specific transcriptional activator, it binds to the PU-box (5'-GAGGAA-3'), a purine-rich DNA sequence acting as a lymphoid-specific enhancer.
Two isoforms of Spi-B are reported. It is primarily expressed in plasmacytoid dendritic cells (pDCs) and promotes their development while blocking viral replication. Spi-B is not expressed in T-cells or granulocytes but may be present in liver stem cells and B-cells, supporting B-cell receptor signaling, B-cell development, and antigenic stimulation.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
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