sub:provenance {
  beldoc: dce:description "Approximately 2000 hand curated statements drawn from 57 PubMeds." ;
    dce:rights "Copyright (c) 2011-2012, Selventa. All Rights Reserved." ;
    dce:title "BEL Framework Small Corpus Document" ;
    dc:license "Creative Commons Attribution-Non-Commercial-ShareAlike 3.0 Unported License" ;
    pav:authoredBy sub:_7 ;
    pav:version "1.6" .
  sub:_6 prov:value """Chromatin immunoprecipitation analysis (Fig. 3B) revealed a dose-dependent increase
in H3K27me3, which coincided with recruitment of EZH2 and SUZ12 (components of
the “initiation” polycomb repressor complex 2 that catalyze H3K27me3), as well
as Bmi1, a member of “maintenance” polycomb repressor complex 1 (27). Additional
analysis confirmed the dose-dependent deacetylation of H4K16, which coincided
with recruitment of SirT1, a class III histone deacetylase that mediates H4K16deacet
ylation (28).""" ;
    prov:wasQuotedFrom pubmed:19351856 .
  sub:_7 rdfs:comment "support@belframework.org" ;
    rdfs:label "Selventa" .
  sub:assertion prov:hadPrimarySource pubmed:19351856 ;
    prov:wasDerivedFrom beldoc: , sub:_6 .
}