The invention relates to a conjugate of a saccharide covalently bound to a carrier protein, wherein the saccharide comprises repetitive units of 1,5 ribitol phosphate in which all the ribitol residues are substituted by N-acetyl D-glucosaminyl residues at the 4-position, and wherein said N-acetyl D-glucosaminyl residues are exclusively in anomeric configuration α or are exclusively in anomeric configuration β and wherein the carrier protein provides at least one epitope to the conjugate which is recognized by T helper lymphocytes.
该发明涉及一种被共价结合到载体蛋白质的糖苷共轭物,其中该糖苷包括1,5
核糖醇
磷酸的重复单元,在这些
核糖醇残基的4位被N-乙酰-
D-葡萄糖胺残基取代,并且所述的N-乙酰-
D-葡萄糖胺残基仅以α异构或仅以β异构的构型存在,载体蛋白质为该共轭物提供至少一个被T辅助淋巴细胞识别的表位。