PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 28961511-7 2017 Kn/Ks values were between 0 and 1, suggesting the purifying selection among BnAP2/ERF TFs. Potassium 3-5 floral homeotic protein APETALA 2 Brassica napus 76-81