Abstract
Oligosaccharides in human urine were converted to pyridylamino (PA)-derivatives. From the PA-oligosaccharides, a saccharide that was chromatographically identical with a synthetic standard, Xylα1→3Xylα1→3Glc-PA, was isolated by gel filtration and HPLC. Structure analysis showed that the saccharide was Xylα1→3Xylα1→3Glc-PA. It is likely that Xylα1→3Xylα1→3Glc originated from such glycoconjugates as blood coagulation factors VII and IX, and protein Z.