| ID | Sequence | Length | GC content |
|---|---|---|---|
| AGAGGCCAAAUAGAACAGGAACUUGGAACAAGCAGAAUUUAGCAUAAUG… | 1426 nt | 0.5877 | |
| AGAAGAAAGUGUCUCUCUUCCUGCUUAAACCUCUGUCUCUGACGGUCCC… | 1585 nt | 0.5874 | |
| AGAAGAAAGUGUCUCUCUUCCUGCUUAAACCUCUGUCUCUGACGGUCCC… | 1581 nt | 0.5876 |
The protein encoded by this gene is a B-cell specific antigen, and a low-affinity receptor for IgE. It has essential roles in B cell growth and differentiation, and the regulation of IgE production. This protein also exists as a soluble secreted form, then functioning as a potent mitogenic growth factor. Alternatively spliced transcript variants encoding different isoforms have been described for this gene.[provided by RefSeq, Jul 2011]
A study in mice and humans demonstrated that the FCER2 is a characteristic marker for B-cells, specifically defining the B-cell-Cd23 cluster in cardiac and mediastinal lymph node samples following myocardial infarction [Bian et al. DOI:10.3892/mmr.2025.13680]. A study in human and mouse acute wound healing demonstrated that the FCER2 is expressed in ILC1/NK cell clusters and is down-regulated in human heart disease [Fajarda et al. DOI:10.1186/s13040-020-00217-8].