GA631000: Fmoc-Thr(Man(Ac)4-α-D)-OHProtein O mannosylation ( O Man) is an essential modification in fungi and animals and contrasts most other types of protein O glycosylation, as it is initiated in the endoplasmic reticulum via transfer from dolichol monophosphate activated mannose to serine and threonine residues of secretory proteins 169219 08 3 Fmoc Thr( D Man) OH (Peracetate); Fmoc Thr( D Mannose) OH (Peracetate); Fmoc Thr(alpha D Man) OH (Peracetate); Fmoc L Thr(Man(Ac)4 D) OH;