PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 23967680-6 2013 Strains with Thr70-type Nap A showed significantly higher levels of Fe3+ and Fe2+ uptake than strains with other type, Ser70-type Nap A, which is found in standard strains. ferric sulfate 68-72 NSF attachment protein alpha Homo sapiens 24-29