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- _5 label "Selventa" provenance.
- large_corpus.bel rights "Copyright (c) 2011-2012, Selventa. All rights reserved." provenance.
- _4 value "Cotransfection of the reporter genes with truncated versions of the ER shows that the two non-ligand activators of ER require different regions of the receptor to produce their effects on transcription. EGF acts primarily by means of transactivation domain AF-1, whereas cAMP acts via transactivation domain AF-2 of the ER. A point mutation that removes a major site of inducible phosphorylation within the AF-1 domain of the ER abolishes the response to EGF, but the response to estradiol and cAMP is retained. Specific inhibition of cAMP-activated protein kinase (protein kinase A) prevents the response to elevated cAMP but does not affect EGF or estradiol responses. Overexpression of the protein kinase A catalytic subunit in HeLa cells results in an amplified response to estradiol, similar to that induced by cholera toxin with 3-isobutyl-1-methyl-xanthine. Comparable experiments performed using COS-1 cells produce similar results but also reveal cell type- and promoter-specific aspects of the activation mechanisms. Apparently, the ER may be activated by three different signal molecules, estradiol, EGF, and cAMP, each using a mechanism that is distinguishable from that of the others." provenance.
- _4 wasQuotedFrom 9178752 provenance.
- assertion hadPrimarySource 9178752 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 _4 provenance.
- large_corpus.bel authoredBy _5 provenance.
- large_corpus.bel version "1.4" provenance.