PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 16022506-10 2005 Concentrations of Cr(VI) (3.1-50 microM) with a corresponding 1:10 ratio of Asc oxidized between 0.3% and 1.5% of all guanines within the duplex DNA strand to Sp. chromium hexavalent ion 18-24 steroid sulfatase Homo sapiens 76-79