Fos-related antigen 1 (FRA1) is a protein that in humans is encoded by the FOSL1 gene. [5] [6]
The Fos gene family consists of 4 members: c-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. [6]
FOSL1 has been shown to interact with USF1 (human gene) [7] and C-jun. [7]
This article incorporates text from the United States National Library of Medicine, which is in the public domain.