PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 6743343-0 1984 NMR studies on angiotensin II: histidine and phenylalanine ring stacking and biological activity. Phenylalanine 45-58 angiotensinogen Homo sapiens 15-29 6743343-2 1984 The chemical shifts for the aromatic protons of the phenylalanine residue in angiotensin II are consistent with shielding and restricted rotation for this side-chain. Phenylalanine 52-65 angiotensinogen Homo sapiens 77-91 6743343-4 1984 These findings suggest a stacking interaction for the histidine and phenylalanine side-chains in angiotensin II which is important for activating angiotensin receptors. Phenylalanine 68-81 angiotensinogen Homo sapiens 97-111