attributes.tag: source_name
attributes.value: GM12878
attributes.tag: biomaterial_provider
attributes.value: Coriell; http://ccr.coriell.org/Sections/Search/Search.aspx?PgId=165&q=GM12878
attributes.tag: cell line
attributes.value: GM12878
attributes.tag: treatment
attributes.value: ActinomycinD-24h
attributes.tag: method
attributes.value: RNAPII-ChIA-PET
attributes.tag: antibody
attributes.value: RNAPII (BioLegend, catalog# 664912)