title: Rat cell surface antigens: Nonidentity of the H-4 and Ag-F traits.
abstract: Animals partially congenic to Lewis have been bred that differ at the locus, linked to C., which controls the Ag-F antigenic trait. Skin grafts from these animals, placed on Lewis recipients, were not rejected. This result demonstrates that Ag-F does not mediate skin incompatibility and, thus, is distinct from H-4, which was defined based on a demonstrable incompatibility and which is also linked to C.
authors.affiliation: Department of Pathology, University of Pennsylvania, 19104, Philadelphia, Pennsylvania.
authors.forename: K F
authors.initials: KF
authors.lastname: Mitchell