Evidence map›Paper›PMID 40481253›Full record

ArticleScientific reports2025

Characterization of glycoside hydrolases involved in xyloglucan degradation in the thermophilic bacterium Thermotoga maritima.

Yuzuki Kawai, Akihiko Kameyama, Haruhiko Sakuraba, Tomohiko Matsuzawa

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Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

4 authors.

Yuzuki KawaiFaculty of Agriculture, Department of Applied Biological Science , Kagawa University, 2393 Ikenobe, Miki, 761-0795, Kagawa, Japan.
Akihiko KameyamaCellular and Molecular Biotechnology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, 305-8565, Ibaraki, Japan.
Haruhiko SakurabaFaculty of Agriculture, Department of Applied Biological Science , Kagawa University, 2393 Ikenobe, Miki, 761-0795, Kagawa, Japan.
Tomohiko MatsuzawaFaculty of Agriculture, Department of Applied Biological Science , Kagawa University, 2393 Ikenobe, Miki, 761-0795, Kagawa, Japan. matsuzawa.tomohiko@kagawa-u.ac.jp.

Funding

Japan Society for the Promotion of Science 24K01668
6 · The paper itself

Abstract

Xyloglucan, a plant hemicellulosic polysaccharide, has a β-glucan main chain and complex side chains composed of sugars such as xylose, galactose and fucose. In this study, we identified xyloglucan degradation-related enzymes in the thermophilic bacterium Thermotoga maritima. TmCel74, belonging to glycoside hydrolase (GH) family 74, was found to be an endo-processive-type xyloglucanase that degraded xyloglucan into xyloglucan oligosaccharides and was able to cleave the β-glucan main chain at both unbranched and xylosylated glucosyl residues. The gene locus of TmCel74 was located near the loci encoding α-L-fucosidase (GH29), α-xylosidase TmAxy31 (GH31), and β-galactosidase TmBgalB (GH42). TmAxy31 and TmBgalB released xylosyl and galactosyl residues, respectively, from xyloglucan oligosaccharides, but not from xyloglucan polysaccharides, indicating that these exo-type glycoside hydrolases cooperatively degrade the side chains of xyloglucan oligosaccharides produced from xyloglucan by TmCel74. Our findings shed light on the complex genetic locus required for xyloglucan degradation in T. maritima.

Indexed as

Bacterial ProteinsGlucansGlycoside HydrolasesThermotoga maritimaXylansSubstrate SpecificityXylosidasesBacterial ProteinsGlucansGlycoside HydrolasesXylansxyloglucanXylosidasesGlycoside hydrolaseOligosaccharideThermotoga maritimaXyloglucanXyloglucanase

Identifiers

PMID40481253
PMCPMC12144081

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.