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Beschreibung

Mouse monoclonal antibody purified from serum-free cell culture supernatant by thiophilic adsorption and size exclusion chromatography. Supplied with a positive control lysate consisting of EGF-treated HepG2 cells. Recognizes the ~55 kDa c-fos protein phosphorylated at Ser374 by MAP kinase., This PhosphoDetect Anti-Fos (pSer³,⁷,⁴,) Mouse mAb (34E4) is validated for use in ELISA, Immunoblotting for the detection of Fos (pSer³,⁷,⁴,)., The early gene product c-Fos is expressed following mitogenic stimulation and functions as a sensor for MAPK signal duration. When MAPK activation is transient, MAPK activity declines before accumulation of the c-Fos protein. When MAPK activation is sustained, c-Fos is phosphorylated by MAPK at Ser374. Phosphorylation stabilizes the Fos protein and primes c-Fos for additional phosphorylation at Thr325., Recognizes the ~55 kDa c-Fos protein phosphorylated at Ser374. Does not detect the unphosphorylated form.