sub:provenance {
  sub:assertion dcterms:description "[Our results suggest that this allelic variation at the promoter region of the prodynorphin gene (alleles with three or four repeats), which may result in enhanced transcription of the gene, may contribute to relative protection and decrease individual vulnerability to develop cocaine dependence or abuse.]. Sentence from MEDLINE/PubMed, a database of the U.S. National Library of Medicine."@en ;
    wi:evidence dgn-void:source_evidence_literature ;
    sio:SIO_000772 miriam-pubmed:11992566 ;
    prov:wasDerivedFrom dgn-void:PSYGENET ;
    prov:wasGeneratedBy eco:ECO_0000203 .
  dgn-void:PSYGENET pav:importedOn "2017-02-21"^^xsd:date .
  dgn-void:source_evidence_literature a eco:ECO_0000212 ;
    rdfs:comment "Gene-disease associations inferred from text-mining the literature."@en ;
    rdfs:label "DisGeNET evidence - LITERATURE"@en .
}