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- _9 label "Selventa" provenance.
- large_corpus.bel rights "Copyright (c) 2011-2012, Selventa. All rights reserved." provenance.
- _8 value "Transcriptional activation by signal transducer and activator of transcription 6 (STAT6) has been shown to require the direct interaction not only with co-activators such as p300 and cAMP-responsive element-binding protein-binding protein (CBP) but also with nuclear co-activator 1, a member of the p160/steroid receptor co-activator family. Among the p160/steroid receptor co-activators, only p/CIP (nuclear co-activator 3) has been shown to be up-regulated by interleukin (IL)-4 in B cells through a STAT-6-dependent mechanism using Gene-Chip analysis. In this study, we have investigated the function of p/CIP in the transcriptional activation by STAT6. We found that p/CIP indirectly interacted with STAT6 via p300, and overexpression of the CBP-interacting domain of p/CIP (p/CIP(947-1084)) prevented the interaction of p/CIP with STAT6 by blocking the binding of p/CIP to p300. Whereas expression of p/CIP(947-1084) resulted in a marked reduction of STAT6-mediated transactivation, overexpression of wild type p/CIP resulted in significant enhancement of it. In addition, p/CIP(947-1084) markedly reduced CD23 expression on B cells stimulated with IL-4, whereas overexpression of wild type p/CIP enhanced it. Chromatin immunoprecipitations demonstrate that IL-4 increases the interaction of p/CIP with the murine immunoglobulin heavy chain germ line epsilon promoter in B cells. These results suggest that p/CIP positively regulates STAT6 transcriptional activation through formation of a STAT6, p300/CBP, and p/CIP complex." provenance.
- _8 wasQuotedFrom 15145939 provenance.
- assertion hadPrimarySource 15145939 provenance.
- large_corpus.bel title "BEL Framework Large Corpus Document" provenance.
- large_corpus.bel description "Approximately 61,000 statements." provenance.
- assertion wasDerivedFrom large_corpus.bel provenance.
- assertion wasDerivedFrom _8 provenance.
- large_corpus.bel authoredBy _9 provenance.
- large_corpus.bel version "1.4" provenance.