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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. [provided by RefSeq, Jul 2014]
Predicted intracellular proteins Protein evidence (Ezkurdia et al 2014)
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GO:0003700 [transcription factor activity, sequence-specific DNA binding] GO:0006355 [regulation of transcription, DNA-templated] GO:0006357 [regulation of transcription from RNA polymerase II promoter] GO:0043565 [sequence-specific DNA binding]