PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8694791-7 1996 In the presence of nitrate the delta ynil::URA3 mutant extrudes approx. Nitrates 19-26 orotidine-5'-phosphate decarboxylase Saccharomyces cerevisiae S288C 43-47