PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9504406-0 1998 Nonadditive effects of double mutations at the flexible loops, glycine-67 and glycine-121, of Escherichia coli dihydrofolate reductase on its stability and function. Glycine 63-70 Dihydrofolate reductase Escherichia coli 111-134 9504406-0 1998 Nonadditive effects of double mutations at the flexible loops, glycine-67 and glycine-121, of Escherichia coli dihydrofolate reductase on its stability and function. Glycine 78-85 Dihydrofolate reductase Escherichia coli 111-134