a proto-oncogenic transcription factor of the bZIP family. Dimerizes with proteins of the JUN family, thereby forming the transcription factor complex AP-1. FOS proteins function as regulators of cell proliferation, differentiation, and transformation. In some cases, expression of FOS has also been associated with apoptotic cell death. Expression increases upon a variety of stimuli, including growth factors, cytokines, neurotransmitters, polypeptide hormones, stress and cell injury. Note: This description may include information from UniProtKB.
Protein type: DNA-binding; Motility/polarity/chemotaxis; Oncoprotein; Transcription factor
Molecular Function: protein binding; protein heterodimerization activity; transcription factor activity; transcription factor binding
Biological Process: DNA methylation; inflammatory response; positive regulation of transcription from RNA polymerase II promoter; positive regulation of transcription, DNA-dependent; regulation of transcription factor activity; regulation of transcription from RNA polymerase II promoter; transforming growth factor beta receptor signaling pathway