Unique cleavage of 2-acetamido-2-deoxy-D-glucose from the reducing end of biantennary complex type oligosaccharides.
Basic treatment of a biantennary complex-type sialyloligosaccharide, as well as its asialo form, was found to lead to the specific cleavage of 2-acetamido-2-deoxy-d-glucose (GlcNAc) from the reducing end. The resultant oligosaccharides were identical to those prepared by treatment with endo-beta-glycosidase-M, which cleaves the glycosidic bond between two GlcNAc residues at the reducing end of N-linked oligosaccharides. In addition, mechanistic studies suggested that an elimination reaction in the reducing-end terminal GlcNAc residue causes this specific cleavage reaction.
Murase
Takefumi
T
International Graduate School of Arts and Sciences, Yokohama City University, 22-2, Seto, Kanazawa-ku, Yokohama 236-0027, Japan.
Kajihara
Yasuhiro
Y
D000117:Acetylglucosamine / Q000737:chemistry*; D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D008969:Molecular Sequence Data; D009844:Oligosaccharides / Q000737:chemistry*; D010084:Oxidation-Reduction; D013237:Stereoisomerism
D009844:Oligosaccharides; D000117:Acetylglucosamine