PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12232440-3 1994 When excised leaves were fed 32P-labeled inorganic phosphate, NR was phosphorylated on seryl residues in both the light and dark. Phosphorus-32 29-32 nitrate reductase [NADH] 1 Zea mays 62-64