Recombinant Human Immunoglobulin alpha Fc receptor (FCAR), Truncated

Uniprot Id

P24071

Target Species

Human

Target Name

FCAR

Target Full Name

Immunoglobulin alpha Fc receptor

Target Function

Binds to the Fc region of immunoglobulins alpha. Mediates several functions including cytokine production.

Target Subcellular Location

[Isoform A.1]: Cell membrane; Single-pass type I membrane protein.; [Isoform A.2]: Cell membrane; Single-pass type I membrane protein.; [Isoform A.3]: Cell membrane; Single-pass type I membrane protein.; [Isoform B]: Secreted.; [Isoform B-delta-S2]: Secreted.

Target Tissue Specificity

Isoform A.1, isoform A.2 and isoform A.3 are differentially expressed between blood and mucosal myeloid cells. Isoform A.1, isoform A.2 and isoform A.3 are expressed in monocytes. Isoform A.1 and isoform A.2 are expressed in alveolar macrophages; however

Target Synonyms

FCAR; CD89; Immunoglobulin alpha Fc receptor; IgA Fc receptor; CD antigen CD89

Target Background

This gene is a member of the immunoglobulin gene superfamily and encodes a receptor for the Fc region of IgA. The receptor is a transmembrane glycoprotein present on the surface of myeloid lineage cells such as neutrophils, monocytes, macrophages, and eosinophils, where it mediates immunologic responses to pathogens. It interacts with IgA-opsonized targets and triggers several immunologic defense processes, including phagocytosis, antibody-dependent cell-mediated cytotoxicity, and stimulation of the release of inflammatory mediators. Multiple alternatively spliced transcript variants encoding different isoforms have been described for this gene.