PMID: 2105311Feb 5, 1990Paper

The structure of (xylose)2glucose-O-serine 53 found in the first epidermal growth factor-like domain of bovine blood clotting factor IX.

The Journal of Biological Chemistry
S HaseT Ikenaka

Abstract

We reported the presence of a new trisaccharide composed of two xylose and reducing terminal glucose residues linked to serine residues of bovine blood clotting factors VII and IX (Hase, S., Kawabata, S., Nishimura, H., Takeya, H., Sueyoshi, T., Miyata, T., Iwanaga, S., Takao, T., Shimonishi, Y., and Ikenaka, T. (1988) J. Biochem. (Tokyo) 104, 867-868). The present paper describes the detailed structural analysis of the trisaccharide. Glycopeptides were prepared from bovine factor IX by digestion with Pronase followed by purification by column chromatography. The trisaccharide was released from the protein by the beta-elimination reaction with hydrazine, and the reducing end of the sugar chain was tagged with 2-aminopyridine. The fluorescent pyridylamino derivative of the trisaccharide was purified by gel filtration and reversed-phase high performance liquid chromatography. The glycopeptides and pyridylamino-trisaccharide thus obtained were subjected to methylation study, 500-MHz 1H nuclear magnetic resonance spectroscopy, and periodate oxidation. Glucose and xylose belong to the D series by high performance liquid chromatography on a chiral column. From the results, the structure of the trisaccharide is proposed as: D-Xyl p al...Continue Reading

Related Concepts

Related Feeds

ASBMB Publications

The American Society for Biochemistry and Molecular Biology (ASBMB) includes the Journal of Biological Chemistry, Molecular & Cellular Proteomics, and the Journal of Lipid Research. Discover the latest research from ASBMB here.

Blood Clotting Disorders

Thrombophilia includes conditions with increased tendency for excessive blood clotting. Blood clotting occurs when the body has insufficient amounts of specialized proteins that make blood clot and stop bleeding. Here is the latest research on blood clotting disorders.