|Detection of XCR1 in Human PBMCs by Flow Cytometry. Human peripheral blood mononuclear cells (PBMCs) treated with LPS were stained with Goat Anti-Human XCR1 PE‑conjugated Antigen Affinity-purified Polyclonal Antibody (Catalog # FAB857P, filled histogram) or isotype control antibody (Catalog # IC108P, open histogram). View our protocol for Staining Membrane-associated Proteins.|
|Detection of XCR1 in NS0 Mouse Cell Line Transfected with Human XCR1 and eGFP by Flow Cytometry. NS0 mouse myeloma cell line transfected with human XCR1 and eGFP was stained with either (A) Goat Anti-Human XCR1 PE‑conjugated Antigen Affinity-purified Polyclonal Antibody (Catalog # FAB857P) or (B) Normal Goat IgG Phycoerythrin Control (Catalog # IC108P). View our protocol for Staining Membrane-associated Proteins.|
XCR1, also known as GPR5 and Lymphotactin/SCM-1 (Single Cysteine Motif 1) Receptor, is a 38 kDa member of the G-protein coupled receptor 1 family. It binds XCL1/Lymphotactin/SCM-1 alpha and XCL2/SCM-1 beta. In addition, Human Herpes Virus 8 (HHV8) encodes two viral chemokines vCCL2/vMIP-II and vCCL3/vMIP-III that function as an antagonist and a highly selective agonist, respectively, for XCR1. XCR1 is expressed on neutrophils, CD8+ T cells, NK cells, CD4+ T cells and B cells. Human XCR1 is a 333 amino acid (aa), 7-transmembrane molecule. It contains a 32 aa N-terminus that lacks glycosylation sites and a 42 aa C-terminal cytoplasmic tail. Over the extracellular regions used for immunization, human XCR1 shares 62%, 54% and 64% aa identity with canine, mouse and porcine XCR1, respectively.
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