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LAIR1 is a transmembrane glycoprotein(approx. 32kDa) expressed on the majority of human peripheral blood mononuclear leukocytes including T cells, B cells, NK cells, macrophages and dendritic cells. LAIR1 recruits SHP1 and SHP2 tyrosine phosphatases upon activation, and cross-linking of the LAIR1 molecule on NK cells results in strong inhibition of NK cell mediated cytotoxicity. This clone is reported to inhibit NK cell triggering via CD16 molecules.