mannose (a1-6) (ethanolamineP) mannose (a1-4) glucosaminyl-acyl-PI + dolichol phosphate D-mannose -> mannose (a1-2) mannose (a1-6) (ethanolamineP) mannose (a1-4) glucosaminyl-acyl-PI + dolichol phosphate Authored: D'Eustachio, P, 2005-04-04 21:01:34 Edited: D'Eustachio, P, 0000-00-00 00:00:00 In the eighth reaction of GPI synthesis, a third mannose residue is added, catalyzed by PIG-B (Takahashi et al. 1996). Pubmed8861954 Reactome Database ID Release 43162821 Reactome, http://www.reactome.org ReactomeREACT_1308