PMID-sentid Pub_year Sent_text compound_name comp_offset prot_official_name organism prot_offset 17004056-2 2007 Hairy root lines transformed with pmt presented fivefold higher PMT activity than the control, and the methylputrescine (MPUT) levels of the resulting engineered hairy roots increased four to fivefold compared to the control and wild-type roots, but there was no significant increase in tropane alkaloids. mput 121-125 putrescine N-methyltransferase 1 Nicotiana tabacum 34-37