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  Mixed-linkage glucan oligosaccharides produced by automated glycan assembly serve as tools to determine the substrate specificity of lichenase

Dallabernardina, P., Schuhmacher, F., Seeberger, P. H., & Pfrengle, F. (2017). Mixed-linkage glucan oligosaccharides produced by automated glycan assembly serve as tools to determine the substrate specificity of lichenase. Chemistry – A European Journal, 23(13), 3191-3196. doi:10.1002/chem.201605479.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-3D81-A Version Permalink: http://hdl.handle.net/21.11116/0000-0006-595C-0
Genre: Journal Article

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 Creators:
Dallabernardina, Pietro1, Author              
Schuhmacher, Frank2, Author              
Seeberger, Peter H.2, Author              
Pfrengle, Fabian1, Author              
Affiliations:
1Fabian Pfrengle, Biomolekulare Systeme, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863303              
2Peter H. Seeberger - Automated Systems, Biomolekulare Systeme, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863306              

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Free keywords: automated glycan assembly, plant cell wall, mixed-linkage glucan
 Abstract: The mixed-linkage (1→3),(1→4)-D-glucan (MLG) specific glycosyl hydrolase lichenase is an important biochemical tool for the structural characterization of MLGs. It holds potential for application in the brewery, animal feed, and biofuel industries. Several defined MLG oligosaccharides obtained by automated glycan assembly are used to analyze the substrate specificities of Bacillus subtilis lichenase. Two glucose building blocks (BBs), equipped with a temporary Fmoc protecting group in the C-3 or C-4 position, served to assemble different oligosaccharides using an automated oligosaccharide synthesizer. Light-induced cleavage of the glycan products from the solid support followed by global deprotection provided seven MLG oligosaccharides of different length and connectivity. After incubation of the MLG oligosaccharides with lichenase, the digestion products were analyzed by HPLC-MS. These digestion experiments provided insights into the enzyme's active site that is in line with other recent evidence suggesting that the substrate specificity of lichenases has to be reconsidered. These results demonstrate that synthetic MLG oligosaccharides are useful tools to analyse mixed-linkage β-glucanases.

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 Dates: 2017-01-132017
 Publication Status: Published in print
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 Identifiers: DOI: 10.1002/chem.201605479
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Title: Chemistry – A European Journal
  Other : Chem. – Eur. J.
  Other : Chem. Eur. J.
Source Genre: Journal
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Publ. Info: Weinheim : Wiley-VCH
Pages: - Volume / Issue: 23 (13) Sequence Number: - Start / End Page: 3191 - 3196 Identifier: ISSN: 0947-6539