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:_3 ;
    pav:version "1.4" .
  sub:_2 prov:value "The activation of Ras also requires stimulation of the tyrosine phosphatase SHP2, through its interaction with receptor substrates such as Gab-1 or IRS1/2. Once activated, Ras operates as a molecular switch, stimulating a serine kinase cascade through the stepwise activation of Raf, MEK and ERK. Activated ERK can translocate into the nucleus, where it catalyses the phosphorylation of transcription factors such as p62TCF, initiating a transcriptional programme that leads to cellular proliferation or differentiation53. Blockade of the pathway with dominant negative mutants or pharmacological inhibitors prevents the stimulation of cell growth by insulin, but has no effect on the metabolic actions of the hormone" ;
    prov:wasQuotedFrom pubmed:11742412 .
  sub:_3 rdfs:label "Selventa" .
  sub:assertion prov:hadPrimarySource pubmed:11742412 ;
    prov:wasDerivedFrom beldoc: , sub:_2 .
}