CD22 Monoclonal Antibody

Catalogue Numbers: MB65764-50, MB65764-100

Sizes: 50µl, 100µl

Product: Mouse IgG1. Liquid in PBS, pH 7.3, and 0.02% sodium azide.

Swiss-Prot: P20273

Host: Mouse

Reactivity: Human

Applications: IF, FC

All Applications: IF (1/50 - 1/200)

Background: CD22 (also known as siglec-2) is a member of the sialic acid-binding immunoglobulin-type lectin (Siglec) family of immunomodulatory receptors. CD22 can bind to its ligand α 2,6-linked sialic acid on different cells (trans interaction) as well as on the same cells (cis interaction). CD22 is predominantly expressed on B cells and functions as an inhibitory co-receptor for the B cell receptor (BCR). After BCR ligation, the tyrosine kinase Lyn is activated and phosphorylates two distal of the four ITIM motifs in the intracellular carboxy-terminal region of CD22, which then recruit tyrosine phosphatases, including SHP-1, to the plasma membrane, and in turn, they get tyrosine-phosphorylated and activated to damp the signaling pathways initiated by BCR ligation. CD22 has been actively pursued as a therapeutic target for autoimmune diseases. Due to almost exclusive expression on B cells, it is also actively pursued as a therapeutic target for multiple B cell malignancies.

Purification and Purity: The monoclonal antibody was affinity-purified from mouse antiserum by affinity-chromatography using epitope-specific immunogen and the purity is > 95% (by SDS-PAGE).

Storage and Stability: Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze-thaw cycles.

Specificity: Recognizes human CD22

Extra Notes: Flow cytometric analysis of human peripheral blood lymphocytes using Anti-CD22 Antibody, followed by anti-mouse IgG PE.

Bioworld Molecular Weight: ~ 95 kDa

Note: For research use only, not for use in diagnostic procedure.

Alternative Name: SIGLEC2; B-cell receptor CD22; B-lymphocyte cell adhesion molecule; BL-CAM; Sialic acid-binding Ig-like lectin 2; Siglec-2; T-cell surface antigen Leu-14; CD antigen CD22

Immunogen: Native purified human CD22.

Conjugate: Unconjugated

Modification: Unmodified