Two closely related forms of UDP-GlcNAc: α6-D-mannoside β1,2-N-acetylglucosaminyltransferase II occur in the clawed frog Xenopus laevis - Jan Mucha; Barbara Svoboda; Sonja Kappel; Richard Strasser; Peter Bencur; Ulrike Fröhwein; Harry Schachter; Lukas Mach; Josef Glössl (Glycoconjugate Journal, 2002)