Pro-opiomelanocortin synthesized by corticotrophs bears asparagine-linked oligosaccharides terminating with SO4-4GalNAc beta 1,4GlcNAc beta 1,2Man alpha. (1992)

Skelton T, Kumar S, Smith P, Beranek M, Baenziger J
J Biol Chem, 1992 vol.267:12998-13006