PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 28219012-5 2017 The results of this study demonstrate that the oxidation of RK by mushroom tyrosinase rapidly produces 4-(3-oxobutyl)-1,2-benzoquinone (RK-quinone), which is converted within 10-20 min to (E)-4-(3-oxo-1-butenyl)-1,2-benzoquinone (DBL-quinone). quinone 127-134 MCF.2 cell line derived transforming sequence Homo sapiens 230-233 28219012-8 2017 DBL-quinone is more reactive than RK-quinone, as judged by their half-lives (6.2 min vs 10.5 min, respectively), and decays rapidly to form an oligomeric pigment (RK-oligomer). quinone 4-11 MCF.2 cell line derived transforming sequence Homo sapiens 0-3