FITC Anti-Human CD22 Antibody
182.81 €
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Catalog number: 866 - RD20666F-20Test
Product Category: Business & Industrial > Science & Laboratory
Gentaur
Size: 20Test
102-P107
Anti-Human CD22 Antibody
Siglec-2 (sialic acid binding Ig-like lectin 2), also known as CD22, is a 130-140 kDa type I transmembrane glycoprotein with seven Ig-like domains in the extracellular region and three ITIM motifs in its cytoplasmic region. Alternate splicing generates an additional isoform that lacks the third and fourth Ig-like domains. Siglec-2 is expressed on B cells, preferentially binds alpha 2-6 linked sialic glycans including CD45 and mediates B cell - B cell interactions. Phosphorylation of Tyr822 within one of the ITIMs is important for Siglec-2 signal transduction through its association with the kinases Lyn, PI 3-Kinase p85 alpha, and SYK.
523.74 €
RD20666F-100Tests
FITC Anti-Human CD22 Antibody
CD22 is a 130 kD type I transmembrane glycoprotein also known as Siglec-2 and BL-CAM. It is a member of the immunoglobulin superfamily (sialoadhesion subgroup). CD22 is expressed in the cytoplasm of pro-B and pre-B cells, and on the surface of mature B and activated B cells, but not on plasma cells. CD22 is present in the B cell receptor complex and associates with SHP-1, Syk, Lck, Lyn, and phospholipase Cγ1. A primary function of CD22 is thought to be in limiting antigen receptor signaling by modulating B cell activation threshold. CD22 has been shown to bind to CD45RO and CD75, although the natural ligands for this molecule remain controversial.