PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 20086098-7 2010 The immunopurified BAF250b E3 ubiquitin ligase was found to target histone H2B at lysine 120 for monoubiquitination in vitro. Lysine 82-88 H2B clustered histone 21 Homo sapiens 75-78