The Mode of Binding of Carbohydrate in Ricin D

抄録

Determination of the amino acid sequences of the three glycopeptides obtained from proteolytic digests of ricin D reveals that the site of carbohydrate linkage is at the Asx residue in all three peptides. Established structures of the glycopeptides are as follows:
Ala chain: (glucosamine₂ mannose₆)
Asx-Asx-Gly-Thr
(glucosamine₂ mannose₇)
Asx-Asx-Thr-Glu-Pro
Ile Chain: (glucosamine₂ mannose₄)
Ile-Asx-Phe