| Catalog Number | KRP045 |
| Alias | 免疫球蛋白mu Fc受体（IgM FcR）, Immunoglobulin mu Fc receptor , IgM FcR, Fas apoptotic inhibitory molecule 3, FAIM3, Regulator of Fas-induced apoptosis Toso, FAIM3, TOSO, |
| Size | 20ug, 50ug, 100ug, 200ug, 1mg |
| Product Description | Human FCMR(18-251 aa) |
| Molecular Name | FCMR |
| Product Introduction | 免疫球蛋白mu Fc受体（IgM FcR）免疫球蛋白mu Fc受体，调控凋亡过程。。 |
| Molecular Weight | 39-50 kDa |
| Expression System | HEK293F Cells |
| Species | Human |
| Concentration | 联系销售经理获得最新批次的浓度 |
| Purity | ≥90% |
| Purification | Affinity Purification |
| Uniprot ID | O60667 |
| Storage Condition | Store the product under sterile conditions after opening at -80℃ for 12 months. Store the lyophilized powder at -20℃. Avoid repeated freeze-thaw cycles. |
| Formulation | Supplied in PBS |
| Shipping Condition | This product is shipped on ice packs or dry ice. |
| Background | High-affinity Fc receptor for immunoglobulin M (IgM), both secreted and membrane-bound IgM (PubMed:19858324, PubMed:22675200, PubMed:36949194, PubMed:37095205). Primarily regulates IgM transport and homeostasis. In lymphoid cells, enables exocytosis of membrane-bound IgM on the plasma membrane as well as endocytosis of IgM-antigen complexes toward lysosomes for degradation. In mucosal epithelium, mediates retrotranscytosis of antigen-IgM complexes across mucosal M cells toward antigen-presenting cells in mucosal lymphoid tissues (PubMed:21908732, PubMed:28230186). Triggers costimulatory signaling and mediates most of IgM effector functions involved in B cell development and primary immune response to infection. Likely limits tonic IgM BCR signaling to self-antigens for proper negative selection of autoreactive B cells in the bone marrow and for the maintenance of regulatory B cell pool in peripheral lymphoid organs. Mediates antibody responses to T cell-dependent and T cell-independent antigens and promotes induction of an efficient neutralizing IgG response. Engages in cross-talk with antigen-receptor signaling via the non-canonical NF-kappa-B, MAP kinases and calcium signaling pathways (PubMed:19858324, PubMed:22675200, PubMed:25601920, PubMed:30840890). {ECO:0000269|PubMed:19858324, ECO:0000269|PubMed:21908732, ECO:0000269|PubMed:22675200, ECO:0000269|PubMed:25601920, ECO:0000269|PubMed:28230186, ECO:0000269|PubMed:30840890, ECO:0000269|PubMed:36949194, ECO:0000269|PubMed:37095205}. |
| Endotoxin | < 0.1 EU per ug |
| Biological Activity | Measured by its binding ability in a functional ELISA. When human IgM is immobilized at 2 μg/mL, 100 μL/well, Recombinant Human Fc mu R/FAIM3 binds with an ED50 of 0.4-2 μg/mL. |
| Product Declaration | 该产品仅供科研使用，不可直接用于人体或注射。 |
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