PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 29156968-4 2018 As a result, alkaloids 1, 2, and 4 exhibited cytotoxicities against all the five tested tumor cell lines with IC50 value of less than 20 muM. Alkaloids 13-22 latexin Homo sapiens 137-140