sub:provenance {
  beldoc: dce:description "Approximately 61,000 statements." ;
    dce:rights "Copyright (c) 2011-2012, Selventa. All rights reserved." ;
    dce:title "BEL Framework Large Corpus Document" ;
    pav:authoredBy sub:_5 ;
    pav:version "1.4" .
  sub:_4 prov:value "High-level expression of MEK-DD alone was sufficient to induce clear cellular transformation of chicken embryo fibroblasts, which caused constitutive activation of endogenous MAPK, hyperphosphorylation of Fra-2, and elevation of fra-2 and c-jun gene expression. These results indicate that phosphorylation of Fra-2 by MAPK plays an important role in stimulating endogenous AP-1 activity in a positive autoregulation mechanism, in which phosphorylated Fra-2 induces fra-2 expression through AP-1 binding sites present in its promoter." ;
    prov:wasQuotedFrom pubmed:10359014 .
  sub:_5 rdfs:label "Selventa" .
  sub:assertion prov:hadPrimarySource pubmed:10359014 ;
    prov:wasDerivedFrom beldoc: , sub:_4 .
}