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Catalog Number | orb1958866 |
---|---|
Category | Small Molecules |
Description | CD89 Protein, Human, Recombinant (His) |
Purity | 98.40% |
MW | Approxiamtely 25 kDa |
Biological Activity | FCAR, also called FcαRI or CD89, is a type I transmembrane receptor for Fc region of IgA which is the most abundant immunoglobulin in mucosal areas but is only the second most common antibody isotype in serum. This receptor is present on the surface of myeloid lineage cells such as neutrophils, monocytes, macrophages, and eosinophils, especially phagocytes located in mucosal areas. Upon ligand IgA binding, FcαRI associates with the FcR γ signaling molecule bearing the immunoreceptor tyrosine-based activation motif (ITAM) through a unique charge-based mechanism and triggers multiple cell-mediated immune responses. It has been reported that Fc RI is a dual-function receptor that can mediate both inflammatory and anti-inflammatory responses depending on the type of interaction with its ligand. Sustained aggregation of FCAR results in activation of target-cell functions such as antigen presentation and cytokine release. In contrast, Monomeric targeting with serum IgA or with a variety of anti-FcαRI Fab fragments triggers an inhibitory response and additionally induces apoptosis. FcαRI thus play an fundamental role in preventing tumor development and growth, as well as in controlling inflammation. |
Note | For research use only |
Expiration Date | 12 months from date of receipt. |
≥90% as determined by SDS-PAGE | |
This protein contains the human FCAR(Met1-Asn227) was fused with the C-terminal His Tag and expressed in Mammalian cells. |
> 97% by SDS-PAGE. | |
KMP1122, Recombinant Human CD89/FCAR Protein is produced by HEK293 expression system. The target protein is expressed with sequence (Gln22-Asn227) of human CD89/FCAR (Accession #NP_001991.1) fused with an Fc, 6×His Tag at the C-terminus. |
≥90% as determined by SDS-PAGE | |
This protein contains the human FCAR(Gln22-Asn227) was fused with the C-terminal His-Fc Tag and expressed in Mammalian cells. |
98.00% | |
Approxiamtely 26.74 kDa |
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