3,3'-diiodothyronine + PAPS => 3,3'-diiodothyronine 4-sulfate + PAP EC Number: 2.8.2.1 Edited: D'Eustachio, P, 2006-03-11 18:40:17 Pubmed10199779 Pubmed10512730 Pubmed11077054 Pubmed11739018 Pubmed9463486 Reactome Database ID Release 43176474 Reactome, http://www.reactome.org ReactomeREACT_6722 Reviewed: D'Eustachio, P, 2008-05-28 08:30:54 Six SULT enzymes, SULT1A1 (Li et al. 2001), 1A3 (Kester, Kaptein et al. 1999), 1B1 (Wang et al. 1998), 1C1 (Li et al. 2000), 1E1 (Li and Anderson 1999; Kester, van Dijk et al. 1999), and 2A1 (Li and Anderson 1999), can catalyze the sulfonation of 3,3'-diiodothyronine (T2) in vitro or in tissue culture model systems. These six enzymes also catalyze the sulfonation of 3,5,3'-triiodothyronine (T3).