FCRL2
Domain
Contains 2 copies of a cytoplasmic motif that is referred to as the immunoreceptor tyrosine-based inhibitor motif (ITIM). The phosphorylated ITIM motif bind the SH2 domain of PTPN6.
Function
May have an regulatory role in normal and neoplastic B cell development.
Post-translational modifications
Isoform 2 is N- and O-glycosylated, and phosphorylated.
Tissue Specificity
Expressed in the secondary lymphoid organs, spleen and lymph node. Expression is limited to the mature B-cell lines. Highly expressed in CD19 and within the mantle zones of the tonsil tissue. Isoform 2 is expressed in the spleen, peripheral blood and bone marrow. Isoform 2 and isoform 4 are expressed in B-cell lines. Preferentially expressed in memory B-cells (at protein level).
Cellular localization
- Cell membrane
- Single-pass type I membrane protein
Alternative names
CD307b, FCRH2, IFGP4, IRTA4, SPAP1, UNQ9236/PRO31998, FCRL2, Fc receptor-like protein 2, FcR-like protein 2, FcRL2, Fc receptor homolog 2, IFGP family protein 4, Immunoglobulin receptor translocation-associated protein 4, SH2 domain-containing phosphatase anchor protein 1, FcRH2