PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12513788-2 2002 Amplified cDNA of mDHFR and GFP segmented from their plasmid separately were linked by PCR with the aminoacetic acid linker. Glycine 100-116 dihydrofolate reductase Mus musculus 18-23