Table of Contents
International Journal of Carbohydrate Chemistry
Volume 2009, Article ID 398284, 4 pages
Research Article

-Cyclodextrin Increases Hydrolysis of Gangliosides by Sialidase from Arthrobacter ureafaciens: Hydrolysis of Gangliosides

1Japan Chemical Innovation Institute, 1-3-5 Jimbocho, Chiyoda-ku, Tokyo 101-0051, Japan
2Kaneka Corporation, 3-2-4, Nakanoshima, Kita-ku, Osaka 530-8288, Japan
3Institute of Industrial Science, The University of Tokyo, 4-6-1, Komaba, Meguro-ku, Tokyo 153-8505, Japan

Received 3 November 2008; Accepted 16 December 2008

Academic Editor: Chun-Hung Lin

Copyright © 2009 Rie Mitsumori et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Sialidase is a ubiquitous enzyme that catalyzes the hydrolytic removal of terminal sialic acid residues from oligosaccharides in glycolipids and glycoproteins. Ganglioside GM1 has been usually found to be resistant to various sialidases. Arthrobacter ureafaciens sialidase has been reported to remove sialyl residues of ganglioside GM1 in the presence of bile salts. However, bile salts are difficult to be removed, and disturb HPTLC analysis. Using -cyclodextrin ( -CD) as a novel additive agent, ganglioside GM1 was efficiently hydrolyzed to asialo-GM1 by A. ureafaciens sialidase.