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Anti-CD22 Reference Antibody (Suciraslimab)

Anti-CD22 Reference Antibody (Suciraslimab) on SDS-PAGE under reducing (R) condition. The purity of the protein is greater than 95%.
The purity of Anti-CD22 Reference Antibody (Suciraslimab) is 97.4%, determined by SEC-HPLC.
Immobilized huCD22-His at 2 µg/mL can bind Suciraslimab, EC50= 0.004412 µg/mL.

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Product Information
Application Applications Legend: E=ELISA WB=Western Blotting IHC=Immunohistochemistry IHC-P=Immunohistochemistry (Paraffin) IP=Immunoprecipitation IF=Immunofluorescence IC=Immunochemistry ICC=Immunocytochemistry FC=Flow Cytometry DB=Dot Blot	Functional assay, Kinetics (SPR), Kinetics (BLI), FACS, E, FTA
Primary Accession	P20273
Reactivity	Human
Clonality	Monoclonal
Isotype	IgG1-REM
Calculated MW	95348 Da

Additional Information
Target/Specificity	Siglec-2 / CD22
Expression system	CHO

For Research Use Only. Not For Use In Diagnostic Procedures.

Patent Notice: The variable region sequence of this antibody is derived from a published third-party patent. This product is manufactured independently as a Research Use Only (RUO) reagent and is not licensed, sponsored, or endorsed by the patent holder. It is intended solely for research purposes. Customers considering any commercial, diagnostic, or therapeutic use should independently evaluate freedom-to-operate with respect to relevant third-party patents.

Protein Information
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.