function:Triggers cytolytic activity only in natural killer cells (NK) expressing high surface densities of natural cytotoxicity receptors.,PTM:Phosphorylated.,similarity:Contains 1 Ig-like (immunoglobulin-like) domain.,subunit:Homodimer. Interacts with PTN6 and, upon phosphorylation, with PTN11 and SH2D1A/SAP.,tissue specificity:Expressed by all (resting and activated) natural killer cells (NK), T- and B-lymphocytes.,
Cell membrane ; Single-pass type I membrane protein .
Expressed by all (resting and activated) natural killer cells (NK), T- and B-lymphocytes (PubMed:11489943). Increased surface expression on T-cells of systemic lupus erythematosus (SLE) patients (PubMed:22184727).
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