PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 17581885-6 2007 In this article, the interaction of trimethyllysine with tryptophan is compared with that of its neutral analog, tert-butylnorleucine (2-amino-7,7-dimethyloctanoic acid), within the context of a beta-hairpin peptide model system. trimethyllysine 36-51 amyloid beta precursor protein Homo sapiens 193-199