Toward fully synthetic homogeneous β -human Follicle-Stimulating hormone (β -hFSH) with a biantennary N-linked dodecasaccharide. synthesis of β -hFSH with chitobiose units at the natural linkage sites

Pavel Nagorny, Bernhard Fasching, Xuechen Li, Gong Chen, Baptiste Aussedat, Samuel J. Danishefsky

Research output: Contribution to journalArticle

62 Citations (Scopus)

Abstract

A highly convergent synthesis of the sialic acid-rich biantennary N-linked glycan found in human glycoprotein hormones and its use in the synthesis of a fragment derived from the β -domain of human Follicle-Stimulating Hormone (hFSH) are described. The synthesis highlights the use of the Sinay radical glycosidation protocol for the simultaneous installation of both biantennary side-chains of the dodecasaccharide as well as the use of glycal chemistry to construct the tetrasaccharide core in an efficient manner. The synthetic glycan was used to prepare the glycosylated 20-27aa domain of the β -subunit of hFSH under a Lansbury aspartylation protocol. The proposed strategy for incorporating the prepared N-linked dodecasaccharide-containing 20-27aa domain into β -hFSH subunit was validated in the context of a model system, providing protected β -hFSH subunit functionalized with chitobiose at positions 7 and 24.

Original languageEnglish (US)
Pages (from-to)5792-5799
Number of pages8
JournalJournal of the American Chemical Society
Volume131
Issue number16
DOIs
StatePublished - Apr 29 2009

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Human Follicle Stimulating Hormone
Hormones
Polysaccharides
N-Acetylneuraminic Acid
Glycoproteins
chitobiose
Acids

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

@article{c2938d5322b14b37b9cfa366414f5365,
title = "Toward fully synthetic homogeneous β -human Follicle-Stimulating hormone (β -hFSH) with a biantennary N-linked dodecasaccharide. synthesis of β -hFSH with chitobiose units at the natural linkage sites",
abstract = "A highly convergent synthesis of the sialic acid-rich biantennary N-linked glycan found in human glycoprotein hormones and its use in the synthesis of a fragment derived from the β -domain of human Follicle-Stimulating Hormone (hFSH) are described. The synthesis highlights the use of the Sinay radical glycosidation protocol for the simultaneous installation of both biantennary side-chains of the dodecasaccharide as well as the use of glycal chemistry to construct the tetrasaccharide core in an efficient manner. The synthetic glycan was used to prepare the glycosylated 20-27aa domain of the β -subunit of hFSH under a Lansbury aspartylation protocol. The proposed strategy for incorporating the prepared N-linked dodecasaccharide-containing 20-27aa domain into β -hFSH subunit was validated in the context of a model system, providing protected β -hFSH subunit functionalized with chitobiose at positions 7 and 24.",
author = "Pavel Nagorny and Bernhard Fasching and Xuechen Li and Gong Chen and Baptiste Aussedat and Danishefsky, {Samuel J.}",
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Toward fully synthetic homogeneous β -human Follicle-Stimulating hormone (β -hFSH) with a biantennary N-linked dodecasaccharide. synthesis of β -hFSH with chitobiose units at the natural linkage sites. / Nagorny, Pavel; Fasching, Bernhard; Li, Xuechen; Chen, Gong; Aussedat, Baptiste; Danishefsky, Samuel J.

In: Journal of the American Chemical Society, Vol. 131, No. 16, 29.04.2009, p. 5792-5799.

Research output: Contribution to journalArticle

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AU - Nagorny, Pavel

AU - Fasching, Bernhard

AU - Li, Xuechen

AU - Chen, Gong

AU - Aussedat, Baptiste

AU - Danishefsky, Samuel J.

PY - 2009/4/29

Y1 - 2009/4/29

N2 - A highly convergent synthesis of the sialic acid-rich biantennary N-linked glycan found in human glycoprotein hormones and its use in the synthesis of a fragment derived from the β -domain of human Follicle-Stimulating Hormone (hFSH) are described. The synthesis highlights the use of the Sinay radical glycosidation protocol for the simultaneous installation of both biantennary side-chains of the dodecasaccharide as well as the use of glycal chemistry to construct the tetrasaccharide core in an efficient manner. The synthetic glycan was used to prepare the glycosylated 20-27aa domain of the β -subunit of hFSH under a Lansbury aspartylation protocol. The proposed strategy for incorporating the prepared N-linked dodecasaccharide-containing 20-27aa domain into β -hFSH subunit was validated in the context of a model system, providing protected β -hFSH subunit functionalized with chitobiose at positions 7 and 24.

AB - A highly convergent synthesis of the sialic acid-rich biantennary N-linked glycan found in human glycoprotein hormones and its use in the synthesis of a fragment derived from the β -domain of human Follicle-Stimulating Hormone (hFSH) are described. The synthesis highlights the use of the Sinay radical glycosidation protocol for the simultaneous installation of both biantennary side-chains of the dodecasaccharide as well as the use of glycal chemistry to construct the tetrasaccharide core in an efficient manner. The synthetic glycan was used to prepare the glycosylated 20-27aa domain of the β -subunit of hFSH under a Lansbury aspartylation protocol. The proposed strategy for incorporating the prepared N-linked dodecasaccharide-containing 20-27aa domain into β -hFSH subunit was validated in the context of a model system, providing protected β -hFSH subunit functionalized with chitobiose at positions 7 and 24.

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