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 "20131211" . 
  
sub:_4 prov:value "Furthermore, p38(MAPK), ERK1/2, JNK, and Smad1 were phosphorylated by BMP4. Using specific MAPK inhibitors, a dominant negative Smad1 construct, and Smad1 siRNA, we found that the antiproliferative and prodifferentiation effects of BMP4 were Smad1 dependent with JNK also contributing to differentiation." ;
    
prov:wasQuotedFrom pubmed:15516492 . 
  
sub:_5 rdfs:label "Selventa" . 
  
sub:assertion prov:hadPrimarySource pubmed:15516492 ;
    
prov:wasDerivedFrom beldoc: , 
sub:_4 . 
}