title: Home schooling of NK cells.
abstract: In this issue of Immunity, Chalifour et al. (2009) show that for natural killer (NK) cells to achieve their full effector potential, NK inhibitory receptors must developmentally interact with MHC-I ligands expressed in cis.
authors.affiliation: Molecular Biology Section, Laboratory of Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892-1892, USA. dhm@nih.gov
authors.forename: David H
authors.initials: DH
authors.lastname: Margulies
mesh_terms: D000818:Animals; D006801:Humans; D007694:Killer Cells, Natural / Q000276:immunology*; D008024:Ligands; D008285:Major Histocompatibility Complex / Q000276:immunology*; D054340:Receptors, KIR / Q000378:metabolism*
chemical_list: D008024:Ligands; D054340:Receptors, KIR