Anti-CD89 Monoclonal Antibody (Clone:A59)-FITC Conjugated
Figure 1: Surface staining of CD89 in human peripheral blood with anti-CD89 (A59) FITC.
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Amount : | 100 tests |
Isotype : | Mouse IgG1 |
Storage condition : | Store in the dark at 2-8°C. Do not freeze. Avoid prolonged exposure to light. |
CD89 (Fc-alpha-R) is a type I transmembrane glycoprotein serving as a receptor for IgA. Soluble CD89 is detectable in serum and retains its IgA binding capacity. For signal transduction the association with FcR gamma chain homodimers is needed. CD89 is expressed on granulocytes, monocytes, macrophages, dendritic cells and myeloid cell lines. Its expression is upregulated in presence of IgA immune complexes, stimulators (such as LPS, PMA), TNF alpha, IL1 beta or GM-CSF, and it is downregulated in presence of TGF beta and suramin. Binding of IgA-opsonized targets to CD89 leads to phagocytic and cytotoxic processes of the immunologic defense.
Subcellular location: | Secreted |
Tissue Specificity: | Isoform A.1, isoform A.2 and isoform A.3 are differentially expressed between blood and mucosal myeloid cells. Isoform A.1, isoform A.2 and isoform A.3 are expressed in monocytes. Isoform A.1 and isoform A.2 are expressed in alveolar macrophages; however only one isoform is expressed at alveolar macrophages surfaces. |
BioGrid: | 108498. 5 interactions. |
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