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Multimerization of AAGTGA and GAAAGT generates sequences that mediate virus inducibility by mimicking an interferon
D Näf1, S E Hardin, C Weissmann
1Institut für Molekularbiologie I. Universität Zürich, Switzerland.
Abstract:
Multimeric AAGTGA and GAAAGT, when inserted before a minimal promoter, mediate virus-inducible transcription. We have determined that the active sequence within these multimers is TGAAAGTGAAAGT, which is structurally similar to GAGAAGTGAAAGT, a positive response element delineated in the beta-interferon gene promoter. Both sequences behave like protoenhancers and are similar as regards induction by virus or interferon regulatory factor 1 when supported by a simian virus 40 enhancer.