PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 17194760-7 2007 A second region of H2A.Z is found, with trimethyl K9 H3 at the inner centromere. trimethyl k9 h3 40-55 H2A.Z variant histone 1 Homo sapiens 19-24