FcγRIIB (D8F9C) XP® Rabbit mAb (BSA and Azide Free) #81563
- WB
- IHC
- F
Supporting Data
| REACTIVITY | M |
| SENSITIVITY | Endogenous |
| MW (kDa) | 60-80 |
| Source/Isotype | Rabbit IgG |
Application Key:
- WB-Western Blotting
- IHC-Immunohistochemistry
- F-Flow Cytometry
Species Cross-Reactivity Key:
- M-Mouse
Product Information
Product Usage Information
This formulation is ideal for use with technologies requiring specialized or custom antibody labeling, including fluorophores, metals, lanthanides, and oligonucleotides. It is not recommended for ChIP, ChIP-seq, CUT&RUN or CUT&Tag assays. If you require a carrier free formulation for chromatin profiling, please contact us. Optimal dilutions/concentrations should be determined by the end user.
Formulation
Storage
Specificity / Sensitivity
Species Reactivity:
Source / Purification
Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Pro284 of mouse FcγRIIB protein.
Background
FcγRIIB (CD32B) is a low affinity, IgG Fc-binding receptor expressed on B cells, monocytes, macrophages, and dendritic cells (DCs) (1-3). It is the inhibitory Fc receptor and signals through an immunoreceptor tyrosine-based inhibitory motif (ITIM) within its carboxy-terminal cytoplasmic tail (2). Binding of immune complexes to FcγRIIB results in tyrosine phosphorylation of the ITIM motif at Tyr292 and recruitment of the phosphatase SHIP, which mediates inhibitory effects on immune cell activation (2,4). In this way, FcγRIIB suppresses the effects of activating Fc-binding receptors (3). For example, mice deficient for FcγRIIB have greater T cell and DC responses following injection of immune complexes (5,6). In addition, FcγRIIB plays a role in B cell affinity maturation (7). Signaling through FcγRIIB in the absence of signaling through the B cell receptor (BCR) is proapoptotic, while signaling through FcγRIIB and the BCR simultaneously attenuates the apoptotic signal and results in selection of B cells with higher antigen affinity (7).
- Tridandapani, S. et al. (2002) J. Biol. Chem. 277, 5082-89.
- Tridandapani, S. et al. (1997) Mol. Cell. Biol. 17, 4305-11.
- Guilliams, M. et al. (2014) Nat Rev Immunol 14, 94-108.
- Bruhns, P. et al. (2000) J. Biol. Chem. 275, 37357-64.
- Kalergis, A.M. and Ravetch, J.V. (2002) J Exp Med 195, 1653-9.
- Desai, D.D. et al. (2007) J Immunol 178, 6217-26.
- Pearse, R.N. et al. (1999) Immunity 10, 753-60.
Limited Uses
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