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Glycosyl Conjugates of Biotinylated Diaminopyridine Applied for Study of Carbohydrate-to-carbohydrate Interaction

Overview
Journal Glycoconj J
Publisher Springer
Date 2010 Aug 11
PMID 20697955
Citations 1
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Abstract

Previous studies by us and others established that cell-cell adhesion is mediated by specific carbohydrate-to-carbohydrate interaction (CCI). Those previous studies were based on various biochemical and biophysical approaches, including the use of labeled glycosyl epitopes with fluorescent tag. However, these methods ideally require that the glycosyl epitope must be fixed to a solid phase molecule, preferably with multivalency. The purpose of the present study is to establish a CCI process using specific glycosyl residues conjugated to biotinylated diaminopyridine (BAP), and to observe: (i) clear occurrence of homotypic CCI between "Os Fr.B" having 5-6 GlcNAc termini, vs. absence of such homotypic CCI between "Os Fr.1" having 2 GlcNAc termini; (ii) occurrence of heterotypic CCI between GM3 ganglioside and Os Fr.B, vs. absence of such heterotypic CCI between GM3 and Os Fr.1. Interaction between Os Fr.B-BAP conjugate and Os Fr.B-ceramide mimetic (Os Fr.B-mCer) was demonstrated based on two experiments: (i) dose-dependent binding of Os Fr.B-BAP conjugate to polystyrene plates coated with Os Fr.B-mCer was observed in the presence of bivalent cation, a prerequisite for all CCI processes, and such binding was abolished by EDTA; (ii) binding between equal nanomolar Os Fr.B-BAP and Os Fr.B-mCer was inhibited by mM concentration Os Fr.B without conjugate, in dose-dependent manner. Thus, cell adhesion processes based on homotypic CCI between N-linked glycans having multiple GlcNAc termini, and heterotypic CCI between GM3 and such glycans, were clearly observed using BAP conjugates of glycosyl epitopes.

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Harvey D Mass Spectrom Rev. 2014; 34(3):268-422.

PMID: 24863367 PMC: 7168572. DOI: 10.1002/mas.21411.

References
1.
Yoon S, Nakayama K, Hikita T, Handa K, Hakomori S . Epidermal growth factor receptor tyrosine kinase is modulated by GM3 interaction with N-linked GlcNAc termini of the receptor. Proc Natl Acad Sci U S A. 2006; 103(50):18987-91. PMC: 1748164. DOI: 10.1073/pnas.0609281103. View

2.
Tomiya N, Awaya J, Kurono M, Endo S, Arata Y, Takahashi N . Analyses of N-linked oligosaccharides using a two-dimensional mapping technique. Anal Biochem. 1988; 171(1):73-90. DOI: 10.1016/0003-2697(88)90126-1. View

3.
Yoon S, Nakayama K, Takahashi N, Yagi H, Utkina N, Wang H . Interaction of N-linked glycans, having multivalent GlcNAc termini, with GM3 ganglioside. Glycoconj J. 2006; 23(9):639-49. DOI: 10.1007/s10719-006-9001-4. View

4.
Tomiya N, Yamaguchi T, Awaya J, Kurono M, Endo S, Arata Y . Structural analyses of asparagine-linked oligosaccharides of porcine pancreatic kallikrein. Biochemistry. 1988; 27(18):7146-54. DOI: 10.1021/bi00418a072. View

5.
Yuen C, Gee C, Jones C . High-performance liquid chromatographic profiling of fluorescent labelled N-glycans on glycoproteins. Biomed Chromatogr. 2002; 16(4):247-54. DOI: 10.1002/bmc.154. View