NCIt definition : Retrovirus-associated DNA sequences (fos) originally isolated from the Finkel-Biskis-Jinkins
(FBJ-MSV) and Finkel-Biskis-Reilly (FBR-MSV) murine sarcoma viruses. The proto-oncogene
c-fos encodes a nuclear protein that dimerizes with Jun via a zipper motif to form
the transcription factor AP1 and is involved in growth-related transcriptional control.
The insertion of c-fos into FBJ-MSV or FBR-MSV induces osteogenic sarcomas in mice.
The human c-fos gene is located at 14q21-3 on the long arm of chromosome 14.;