NK cell repertoire of activating and inhibitory receptors. AR, activating receptor; BAG6, BCL2-associated athanogene 6; DAP10, DNAX activating protein of 12 KDa; DAP12, DNAX activating protein of 12 KDa; DNAM1, DNAX accessory molecule 1; GAGs, glycosaminoglycans; Gal-9, galectin-9; HA, hemagglutinin; HS, heparan sulfate; IR, inhibitory receptor; ITAM, immunoreceptor tyrosine-based activation motif; ITIM, immunoreceptor tyrosine-based activation motif; ITSM, immunoreceptor tyrosine-based switch motif; ITT-like, immunoglobulin tail tyrosine-like; KIR, killer immunoglobulin like receptor; KLRG1, killer cell lectin-like receptor G1; LAIR1, leukocyte-associated immunoglobulin like receptor-1; LILRB1, leukocyte Ig-like receptor B1; MIC-A/B, MHC class I chain-related proteins A and B; PD1, programmed cell death protein 1; PDL-1, programmed cell death ligand 1; PDL-2, programmed cell death ligand 2; TIGIT, T-cell immunoreceptor with Ig and ITIM domains; TIM3, T-cell immunoglobulin mucin domain-3; YXXM, Y stands for tyrosine, X for any amino acid residue, and M for methionine.