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- Table of Contents
Facts about Low affinity immunoglobulin gamma Fc region receptor II-b.
Involved in many different effector and regulatory functions such as phagocytosis of immune complexes and modulation of antibody production by B- cells. Binding to this receptor results in down-modulation of earlier state of cell activation triggered via antigen receptors on B-cells (BCR), T-cells (TCR) or through another Fc receptor.
Human | |
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Gene Name: | FCGR2B |
Uniprot: | P31994 |
Entrez: | 2213 |
Belongs to: |
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No superfamily |
CD32 antigen; CD32b; CD32Fc fragment of IgG, low affinity II, receptor for (CD32); CDw32; Fc fragment of IgG, low affinity IIb, receptor (CD32); Fc fragment of IgG, low affinity IIb, receptor for (CD32); Fc gamma RIIB; FCG2; Fc-gamma RII-b; fc-gamma-RIIb; FCGR2; FCGR2B; FcgRIIB; FCRIIB; fcRII-b; IGFR2; IgG Fc receptor II-b; low affinity immunoglobulin gamma Fc region receptor II-b
Mass (kDA):
34.044 kDA
Human | |
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Location: | 1q23.3 |
Sequence: | 1; NC_000001.11 (161647243..161678654) |
Is the most broadly distributed Fc-gamma- receptor. Expressed in monocyte, neutrophils, macrophages, basophils, eosinophils, Langerhans cells, B-cells, platelets cells and placenta (endothelial cells). Not detected in natural killer cells.
Cell membrane; Single-pass type I membrane protein.
PMID: 2531080 by Stuart S.G., et al. Human IgG Fc receptor (hFcRII; CD32) exists as multiple isoforms in macrophages, lymphocytes and IgG-transporting placental epithelium.
PMID: 2529342 by Brooks D.G., et al. Structure and expression of human IgG FcRII(CD32). Functional heterogeneity is encoded by the alternatively spliced products of multiple genes.