PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 28508285-6 2017 Reactions between HNO3 and histidine residues in AI and AII resulted in the formation of dominant [MAI-H+(HNO3)]- and [MAII-H+(HNO3)]- ions. Histidine 27-36 angiotensinogen Homo sapiens 56-59