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Protein & Peptide Letters

Editor-in-Chief

ISSN (Print): 0929-8665
ISSN (Online): 1875-5305

Glycan-Binding Profile and Cell Adhesion Activity of American Bullfrog (Rana catesbeiana) Oocyte Galectin-1

Author(s): Sarkar M.A. Kawsar, Ryo Matsumoto, Yuki Fujii, Hidetaro Yasumitsu, Hideho Uchiyama, Masahiro Hosono, Kazuo Nitta, Jiharu Hamako, Taei Matsui, Noriaki Kojima and Yasuhiro Ozeki

Volume 16, Issue 6, 2009

Page: [677 - 684] Pages: 8

DOI: 10.2174/092986609788490104

Price: $65

Abstract

The glycan-binding profile of a β-galactoside-binding 15 kDa lectin (Galectin-1) purified from the oocytes of the American bullfrog, Rana catesbeiana, was studied using 61 pyridyl-aminated oligosaccharides by frontal affinity chromatography. Human blood type-A-hexasaccharide (GalNAcα1-3(Fucα1-2)Galβ1-4GlcNAcβ1-4Galβ1-4Glc) was found to exhibit the strongest ligand binding to the galectin while Forssman antigen (GalNAcα1-3GalNAcβ1-3Galα1- 4Galβ1-4Glc) and type-A-tetrasaccharide (GalNAcα1-3(Fucα1-2)Galβ1-4GlcNAcβ1-4Glc) were also extensively recognized. The kinetics of affinity of galectin-1 to type-A oligosaccharide was analysed by surface plasmon resonance using neoglycoprotein with type-A oligosaccharides. R. catesbeiana oocyte galectin adhered to human rhabdomyosarcoma cells dose dependently and the activity was specifically cancelled by the neoglycoprotein. It was concluded that galectin-1 from R. catesbeiana oocytes possesses different and rare glycan-binding properties from typical members in galectin family.

Keywords: American bullfrog (Rana catesbeiana), blood type-A hexasaccharide, cell adhesion activity, frontal affinity chromatography, galectin-1


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