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CD22 Antibody
Rabbit mAb
- SPECIFICATION
- CITATIONS
- PROTOCOLS
- BACKGROUND
Application 
| WB |
|---|---|
| Primary Accession | P20273 |
| Reactivity | Rat |
| Clonality | Monoclonal |
| Other Names | CD22; BLCAM ; Leu14; Lyb8; SIGLEC2 ; B cell receptor CD22 precursor; MGC130020; |
| Isotype | Rabbit IgG |
| Host | Rabbit |
| Calculated MW | 95348 Da |
| Dilution | WB 1:500~1:2000 |
|---|---|
| Purification | Affinity-chromatography |
| Immunogen | A synthesized peptide derived from human CD22 |
| Description | Acts as a regulator of B cell signaling. CD22 is expressed as both a cytoplasmic and membrane protein during discrete stages of B cell lymphocyte differentiation. The cytoplasmic form of CD22, expressed early in B cell development, is a useful marker for acute lymphocytic leukemia. The membrane form of CD22 is expressed in mature B cells prior to their differentiation into plasma cells. Alternative splicing results in two different isoforms, CD22α and CD22β. |
| Storage Condition and Buffer | Rabbit IgG in phosphate buffered saline , pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol. Store at +4°C short term. Store at -20°C long term. Avoid freeze / thaw cycle. |
| Name | CD22 {ECO:0000303|PubMed:1691828, ECO:0000312|HGNC:HGNC:1643} |
|---|---|
| Function | Most highly expressed siglec (sialic acid-binding immunoglobulin-like lectin) on B-cells that plays a role in various aspects of B-cell biology including differentiation, antigen presentation, and trafficking to bone marrow (PubMed:34330755, PubMed:8627166). Binds to alpha 2,6-linked sialic acid residues of surface molecules such as CD22 itself, CD45 and IgM in a cis configuration. Can also bind to ligands on other cells as an adhesion molecule in a trans configuration (PubMed:20172905). Acts as an inhibitory coreceptor on the surface of B-cells and inhibits B-cell receptor induced signaling, characterized by inhibition of the calcium mobilization and cellular activation. Mechanistically, the immunoreceptor tyrosine-based inhibitory motif domain is phosphorylated by the Src kinase LYN, which in turn leads to the recruitment of the protein tyrosine phosphatase 1/PTPN6, leading to the negative regulation of BCR signaling (PubMed:8627166). If this negative signaling from is of sufficient strength, apoptosis of the B-cell can be induced (PubMed:20516366). |
| Cellular Location | Cell membrane; Single-pass type I membrane protein |
| Tissue Location | B-lymphocytes. |
Research Areas
Citations (0)
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info@abcepta.com, and receive a free "I Love Antibodies" mug.
Application Protocols
Provided below are standard protocols that you may find useful for product applications.
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$ 350.00
$ 175.00
Cat# AP90342
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