PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 23039308-8 2012 Partial replacement of the PF(6)(-) anion with the bulkier AsF(6)(-) anion forms crystals with similar crystallographic parameters. pyrazofurin 27-29 arylsulfatase F Homo sapiens 59-62