title: Cd28 and Ctla-4, two related members of the Ig supergene family, are tightly linked on proximal mouse chromosome 1.
authors.affiliation: Department of Medicine, Duke University Medical Center, Durham, NC 27705.
authors.forename: T A
authors.initials: TA
authors.lastname: Howard
authors.forename: J M
authors.initials: JM
authors.lastname: Rochelle
authors.forename: M F
authors.initials: MF
authors.lastname: Seldin
mesh_terms: D000818:Animals; D000945:Antigens, Differentiation, T-Lymphocyte / Q000235:genetics*; D018106:CD28 Antigens; D002874:Chromosome Mapping; D015342:DNA Probes; D008040:Genetic Linkage; D051379:Mice; D008809:Mice, Inbred C3H; D005810:Multigene Family; D012150:Polymorphism, Restriction Fragment Length; D013602:T-Lymphocytes, Cytotoxic / Q000276:immunology*
chemical_list: D000945:Antigens, Differentiation, T-Lymphocyte; D018106:CD28 Antigens; D015342:DNA Probes