Genetic mapping in the mouse of four loci related to the jun family of transcriptional activators.

Southern blot analysis of DNAs from somatic cell hybrids and the progeny of an intersubspecies backcross were used to identify and chromosomally map four loci in the mouse containing sequences cross-reactive to members of the jun family of transcriptional activators. The murine homolog of v-jun, Jun, was mapped to chromosome (Chr) 4, and a locus containing jun B-related sequences (Junb) was mapped to Chr 8. Probes for jun D identified two genetic loci; one, Jund-1, is near Junb on Chr 8, and a second, previously unidentified locus termed Jund-2, was mapped to Chr 2.