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 "Several reports have demonstrated that the inactivation of pVHL tumour suppressor function is linked to abnormal extracellular fibronectin arrays in both RCC cells that lack functional pVHL and VHLK-K mouse fibroblasts [44 to 46]. However, the exact nature of such an association and the mechanism by which VHL regulates the assembly of this ECM remain poorly understood. Nevertheless, the restored ability of pVHL-positive transfectants to assemble extracellular fibronectin was mediated by b1 integrins, implying that pVHL controls ECM assembly, at least in part, through integrin signalling [46]." ;
    prov:wasQuotedFrom pubmed:15350900 .
  sub:_5 rdfs:label "Selventa" .
  sub:assertion prov:hadPrimarySource pubmed:15350900 ;
    prov:wasDerivedFrom beldoc: , sub:_4 .
}