ArticleApplied microbiology and biotechnology2018
Analysis of the substrate specificity of α-L-arabinofuranosidases by DNA sequencer-aided fluorophore-assisted carbohydrate electrophoresis.
Article in Applied microbiology and biotechnology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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1 citing paper in PubMed, 7 citations in OpenAlex.
- High-Throughput Generation of Product Profiles for Arabinoxylan-Active Enzymes from Metagenomes.Applied and environmental microbiology · 2020Article
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9 authors at 4 institutions in 4 countries.
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Abstract
Carbohydrate-active enzyme discovery is often not accompanied by experimental validation, demonstrating the need for techniques to analyze substrate specificities of carbohydrate-active enzymes in an efficient manner. DNA sequencer-aided fluorophore-assisted carbohydrate electrophoresis (DSA-FACE) is utmost appropriate for the analysis of glycoside hydrolases that have complex substrate specificities. DSA-FACE is demonstrated here to be a highly convenient method for the precise identification of the specificity of different α-L-arabinofuranosidases for (arabino)xylo-oligosaccharides ((A)XOS). The method was validated with two α-L-arabinofuranosidases (EC 3.2.1.55) with well-known specificity, specifically a GH62 α-L-arabinofuranosidase from Aspergillus nidulans (AnAbf62A-m2,3) and a GH43 α-L-arabinofuranosidase from Bifidobacterium adolescentis (BaAXH-d3). Subsequently, application of DSA-FACE revealed the AXOS specificity of two α-L-arabinofuranosidases with previously unknown AXOS specificities. PaAbf62A, a GH62 α-L-arabinofuranosidase from Podospora anserina strain S mat+, was shown to target the O-2 and the O-3 arabinofuranosyl monomers as side chain from mono-substituted β-D-xylosyl residues, whereas a GH43 α-L-arabinofuranosidase from a metagenomic sample (AGphAbf43) only removes an arabinofuranosyl monomer from the smallest AXOS tested. DSA-FACE excels ionic chromatography in terms of detection limit for (A)XOS (picomolar sensitivity), hands-on and analysis time, and the analysis of the degree of polymerization and binding site of the arabinofuranosyl substituent.
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