ArticleJournal of bacteriology2014
Extracellular secretion of noncatalytic plant cell wall-binding proteins by the cellulolytic thermophile Caldicellulosiruptor bescii.
Article in Journal of bacteriology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed, 25 citations in OpenAlex.
- A highly conserved ABC transporter mediates cello-oligosaccharide uptake in the extremely thermophilic, lignocellulolytic bacteriumApplied and environmental microbiology · 2026Article
- Structural insights into xyloglucan recognition by an ABC transporter from a Gram-positive, thermophilic bacterium.bioRxiv : the preprint server for biology · 2025Article
- Nonspecific Binding of a Putative S-Layer Protein to Plant Cell Wall Polysaccharides-Implication for Growth Competence ofInternational journal of molecular sciences · 2025Article
- Unifying themes and distinct features of carbon and nitrogen assimilation by polysaccharide-degrading bacteria: a summary of four model systems.Applied microbiology and biotechnology · 2021Review
- Article
- Caldicellulosiruptor bescii Adheres to Polysaccharides via a Type IV Pilin-Dependent Mechanism.Applied and environmental microbiology · 2020Article
- Improved Methods for Preparing the Telomere Tethering Complex Bqt1-Bqt2 for Structural Studies.The protein journal · 2020Article
- The biology and biotechnology of the genus Caldicellulosiruptor: recent developments in 'Caldi World'.Extremophiles : life under extreme conditions · 2020Review
- Genomic and physiological analyses reveal that extremely thermophilic Caldicellulosiruptor changbaiensis deploys uncommon cellulose attachment mechanisms.Journal of industrial microbiology & biotechnology · 2019Article
- Comparative Biochemical and Structural Analysis of Novel Cellulose Binding Proteins (Tāpirins) from Extremely ThermophilicApplied and environmental microbiology · 2019Article
- Mining the biomass deconstructing capabilities of rice yellow stem borer symbionts.Biotechnology for biofuels · 2019Article
- The diversity and specificity of the extracellular proteome in the cellulolytic bacteriumBiotechnology for biofuels · 2018Article
- Functional Analysis of the Glucan Degradation Locus in Caldicellulosiruptor bescii Reveals Essential Roles of Component Glycoside Hydrolases in Plant Biomass Deconstruction.Applied and environmental microbiology · 2017Article
- Forest Soil Bacteria: Diversity, Involvement in Ecosystem Processes, and Response to Global Change.Microbiology and molecular biology reviews : MMBR · 2017Review
- Decoding the complete arsenal for cellulose and hemicellulose deconstruction in the highly efficient cellulose decomposer Paenibacillus O199.Biotechnology for biofuels · 2016Article
- Discrete and structurally unique proteins (tāpirins) mediate attachment of extremely thermophilic Caldicellulosiruptor species to cellulose.The Journal of biological chemistry · 2015Article
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Caldicellulosiruptor bescii efficiently degrades cellulose, xylan, and native grasses at high temperatures above 70°C under anaerobic conditions. C. bescii extracellularly secretes multidomain glycoside hydrolases along with proteins of unknown function. In this study, we analyzed the C. bescii proteins that bind to the cell walls of timothy grass by using mass spectrometry, and we identified four noncatalytic plant cell wall-binding proteins (PWBPs) with high pI values (9.2 to 9.6). A search of a conserved domain database showed that these proteins possess a common domain related to solute-binding proteins. In addition, 12 genes encoding PWBP-like proteins were detected in the C. bescii genomic sequence. To analyze the binding properties of PWBPs, recombinant PWBP57 and PWBP65, expressed in Escherichia coli, were prepared. The PWBPs displayed a wide range of binding specificities: they bound to cellulose, lichenan, xylan, arabinoxylan, glucuronoxylan, mannan, glucomannan, pectin, oligosaccharides, and the cell walls of timothy grass. The proteins showed the highest binding affinity for the plant cell wall, with association constant (Ka) values of 5.2 × 10(6) to 44 × 10(6) M(-1) among the insoluble polysaccharides tested, as measured using depletion binding isotherms. Affinity gel electrophoresis demonstrated that the proteins bound to the acidic polymer pectin most strongly among the soluble polysaccharides tested. Fluorescence microscopic analysis showed that the proteins bound preferentially to the cell wall in a section of grass leaf. Binding of noncatalytic PWBPs with high pI values might be necessary for efficient utilization of polysaccharides by C. bescii at high temperatures.
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