Roles for APIS and the 20S proteasome in adenovirus E1A-dependent transcription

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Roles for APIS and the 20S proteasome in adenovirus E1A-dependent transcription.

We have determined distinct roles for different proteasome complexes in adenovirus (Ad) E1A-dependent transcription. We show that the 19S ATPase, S8, as a component of 19S ATPase proteins independent of 20S (APIS), binds specifically to the E1A transactivation domain, conserved region 3 (CR3). Recruitment of APIS to CR3 enhances the ability of E1A to stimulate transcription from viral early gen...

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Adenovirus E1A proteins interact with the cellular YY1 transcription factor.

The adenovirus 12S and 13S E1A proteins have been shown to relieve repression mediated by the cellular transcription factor YY1. The 13S E1A protein not only relieves repression but also activates transcription through YY1 binding sites. In this study, using a variety of in vivo and in vitro assays, we demonstrate that both E1A proteins can bind to YY1, although the 13S E1A protein binds more e...

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ژورنال

عنوان ژورنال: The EMBO Journal

سال: 2006

ISSN: 0261-4189,1460-2075

DOI: 10.1038/sj.emboj.7601169