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:_6 ;
    pav:version "20131211" .
  sub:_5 prov:value "All four NFI genes were expressed in human osteoblast cultures and osteosarcoma cell lines. Co-transfection with human IGFBP5 promoter luciferase reporter and murine Nfi expression vectors showed that Nfib was the most active in stimulating transcription. Nfix was less active and Nfia and Nfic were inhibitory. ......All four NFI proteins bound the NFI site in electrophoretic mobility shift experiments and NFIB bound in chromatin immunoprecipitation assays. " ;
    prov:wasQuotedFrom pubmed:18809517 .
  sub:_6 rdfs:label "Selventa" .
  sub:assertion prov:hadPrimarySource pubmed:18809517 ;
    prov:wasDerivedFrom beldoc: , sub:_5 .
}