PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9154941-3 1997 In order to characterize the interaction, NMR studies were performed which involved titrating a series of polyphenols into a synthetic 19-residue PRP fragment. Polyphenols 106-117 prion protein Homo sapiens 146-149 9154941-5 1997 Measurement of dissociation constants indicates that the larger and more complex polyphenols interact more strongly with the PRP fragment; the order of binding affinity was determined as procyanidin dimer B-2 > pentagalloylglucose > trigalloylglucose >> proanthocyanidin monomer (-)-epicatechin approximately propyl gallate. Polyphenols 81-92 prion protein Homo sapiens 125-128 9154941-7 1997 The more complex polyphenols interact with the PRP fragment in a multidentate fashion; moreover, they self-associate or stack when bound. Polyphenols 17-28 prion protein Homo sapiens 47-50 9154941-8 1997 Thus, a model is proposed in which multiple polyphenol/polyphenol and polyphenol/PRP interactions act cooperatively to achieve precipitation. Polyphenols 44-54 prion protein Homo sapiens 81-84