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> home > Products > Primary Antibodies > Antibody Collections > Recombinant Antibodies > Anti-Siglec-2 / CD22 Reference Antibody (NCI m971)
Anti-Siglec-2 / CD22 Reference Antibody (NCI m971)
Recombinant Antibody
- SPECIFICATION
- CITATIONS
- PROTOCOLS
- BACKGROUND
Application 
| FC, E, FTA |
|---|---|
| Primary Accession | P20273 |
| Reactivity | Human |
| Clonality | Monoclonal |
| Isotype | IgG1 |
| Calculated MW | 146.64 KDa |
| Target/Specificity | Siglec-2 / CD22 |
|---|---|
| Endotoxin | < 0.001EU/ µg,determined by LAL method. |
| Conjugation | Unconjugated |
| Expression system | CHO Cell |
| Format | Purified monoclonal antibody supplied in PBS, pH6.0, without preservative.This antibody is purified through a protein A column. |
| Storage | -80°C for 2 years under sterile conditions； -20°C for 1 year under sterile conditions；Avoid repeated freeze-thaw cycles. |
| 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:8627166, PubMed:34330755). 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
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Application Protocols
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$ 365.00
Cat# APR11035
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