Cellular oncogene fos, FBJ murine osteosarcoma viral v fos oncogene homolog antibody FBJ Osteosarcoma Virus, FOS, FOS protein, G0 G1 switch regulatory protein 7, G0S7, Oncogene FOS, Proto oncogene protein c fos, v fos FBJ murine osteosarcoma viral oncogene homolog, FOS, AP-1, C-FOS, p55, FOS_HUMAN, Proto-oncogene c-Fos, G0/G1 switch regulatory protein 7.
The Fos gene family consists of 4 members: FOS, FOSB, FOSL1, and FOSL2. These genes encode leucine zipper proteins that can dimerize with proteins of the JUN family, thereby forming the transcription factor complex AP-1. As such, the FOS proteins have been implicated as regulators of cell proliferation, differentiation, and transformation. In some cases, expression of the FOS gene has also been associated with apoptotic cell death. [provided by RefSeq, Jul 2008].