PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 10398706-2 1999 The leaf and root steady-state mRNA levels of citrate synthase, acotinase, IDH, and glutamine synthetase were found to respond similarly to nitrate, whereas those for cytosolic NADP-dependent isocitrate dehydrogenase and fumarase responded differently. Nitrates 141-148 glutamine synthetase Nicotiana tabacum 85-105