Anti-Fc receptor like 1 antibodies are used for the immunodetection of the protein encoded by the FCRL1 gene. In humans, the canonical protein has a reported length of 429 amino acid residues and a mass of 46.9 kDa. Its subcellular localization is in the cell membrane. Alternative splicing is reported to yield 4 different isoforms for this protein. It is notably expressed in secondary lymphoid tissues by mature subsets of B-cells. It is believed to function as a an activating coreceptor in B-cells. Post-translational modifications have been described, including phosphorylation and glycosylation. Other names for this target antigen include IFGP family protein 1, fc receptor homolog 1, fcR-like protein 1, hIFGP1, immune receptor translocation-associated protein 5, and Fc receptor-like protein 1. Gene orthologs have been identified in the mouse, bovine and chimpanzee species. A number of Fc receptor like 1 antibodies have been mentioned in research publications and have associated citations. Western Blot is a widely used application for these antibodies. ELISA and Flow Cytometry are also common applications.