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A 1:1,000 dilution of MA5-45888 was sufficient for detection of c-fos in 10 µg of serum starved HeLa cells treated with PMA by ECL immunoblot analysis using goat anti-mouse IgG:HRP as the secondary antibody.|Detects 62 kDa band. Observed molecular weight of band is higher than predicted 41 kDa band due to post translational modifications.
FBJ murine osteosarcoma viral oncogene homolog is commonly known as Cellular protooncogene Fos (c-Fos). It belongs to the fos transcription factor family and is encoded by the C-FOS gene located on chromosome 14. c-Fos heterodimerizes with c-Jun to form the Activator Protein -1 (AP-1) transcription factor which regulates transcription of several genes that play an important role in cellular signal transduction, cell proliferation and differentiation. c-Fos has been shown to be phosphorylated by various stimuli including growth factors and insulin at atleast seven different sites. The best known upstream kinase for phosphorylation at Threonine 232 is ERK MAPK which regulates localization of c-Fos to the nucleus and is thus important for c-Fos induced transcriptional activity.
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