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  • Title: The ability of a ternary complex to form over the serum response element correlates with serum inducibility of the human c-fos promoter.
    Author: Shaw PE, Schröter H, Nordheim A.
    Journal: Cell; 1989 Feb 24; 56(4):563-72. PubMed ID: 2492906.
    Abstract:
    Rapid induction of c-fos transcription by serum and phorbol esters requires the serum response element (SRE). The SRE contains a 20 bp element of interrupted dyad symmetry (DSE) that is bound by p67/SRF. We have identified a hitherto unrecognized protein with an apparent size of 62 kd. This novel component, p62, is shown to be an integral but physically separable part of a ternary complex formed with p67/SRF and the SRE. Alone, p62 fails to bind the SRE but requires DSE-bound p67/SRF and sequences both within and outside the DSE for its interaction with DNA. In vivo, the response of the c-fos promoter to serum is severely impaired by mutations that abolish ternary complex formation in vitro.
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