PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 19151070-5 2009 Taken together, these results suggest that the NtMEK2-SIPK/WIPK cascade is involved in regulating polyamine synthesis, especially putrescine synthesis, through transcriptional regulation of the biosynthetic genes in tobacco. Polyamines 98-107 mitogen-activated protein kinase 3-like Nicotiana tabacum 59-63