The occurrence of novel 9-O-sulfated N-glycolylneuraminic acid-capped alpha 2->5-O-glycolyl-linked oligo/polyNeu5Gc chains in sea urchin egg cell surface glycoprotein - Identification of a new chain termination signal for polysialyltransferase - Kitazume, S; Kitajima, K; Inoue, S; Haslam, SM; Morris, HR; Dell, A; Lennarz, WJ; Inoue, Y (JOURNAL OF BIOLOGICAL CHEMISTRY, 1996)