PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9065390-4 1997 The transformants carrying nit1/ars did not express arylsulphatase when grown in ammonium-sufficient medium but readily accumulated the enzyme in ammonium-free medium either supplemented, or not supplemented, with nitrate or nitrite. Nitrates 214-221 uncharacterized protein Chlamydomonas reinhardtii 27-31