PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
22252316-1	2012	Ubiquitylation of H2B on lysine 120 (H2Bub) is associated with active transcriptional elongation.	Lysine	25-31	H2B clustered histone 21	Homo sapiens	18-21