The DOI matches its Crossref record; 35 of the 35 references it cites were found in a registry or an index.
Cellulose Surface Degradation by a Lytic Polysaccharide Monooxygenase and Its Effect on Cellulase Hydrolytic Efficiency
Open accessAbstract
Lytic polysaccharide monooxygenase (LPMO) represents a unique principle of oxidative degradation of recalcitrant insoluble polysaccharides. Used in combination with hydrolytic enzymes, LPMO appears to constitute a significant factor of the efficiency of enzymatic biomass depolymerization. LPMO activity on different cellulose substrates has been shown from the slow release of oxidized oligosaccharides into solution, but an immediate and direct demonstration of the enzyme action on the cellulose surface is lacking. Specificity of LPMO for degrading ordered crystalline and unordered amorphous cellulose material of the substrate surface is also unknown. We show by fluorescence dye adsorption analyzed with confocal laser scanning microscopy that a LPMO (from Neurospora crassa ) introduces carboxyl groups primarily in surface-exposed crystalline areas of the cellulosic substrate. Using time-resolved in situ atomic force microscopy we further demonstrate that cellulose nano-fibrils exposed on the surface are degraded into shorter and thinner insoluble fragments. Also using atomic force microscopy, we show that prior action of LPMO enables cellulases to attack otherwise highly resistant crystalline substrate areas and that it promotes an overall faster and more complete surface degradation. Overall, this study reveals key characteristics of LPMO action on the cellulose surface and suggests the effects of substrate morphology on the synergy between LPMO and hydrolytic enzymes in cellulose depolymerization. Background Lytic polysaccharide monooxygenase (LPMO) has recently been discovered to depolymerize cellulose. Results Dynamic imaging was applied to reveal the effects of LPMO and cellulase activity on solid cellulose surface. Conclusion Critical features of surface morphology for LPMO synergy with cellulases are recognized. Significance Direct insights into cellulose deconstruction by LPMO alone and in synergy with cellulases are obtained.
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Deconstruction of Lignocellulosic Biomass to Fuels and Chemicals
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Lignocellulose degradation mechanisms across the Tree of Life
Cragg, S. M., Beckham, G. T., Bruce, N. C., Bugg, T. D., Distel, D. L., Dupree, P., Etxabe, A. G., Goodell, B. S., Jellison, J., McGeehan, J. E., et al. (2015) · Current Opinion in Chemical Biology · doi:10.1016/j.cbpa.2015.10.018 · Cited by 667
Biological Pretreatment of Lignocellulosic Biomass for Biofuels and Bioproducts: An Overview
Sharma, H. K., Xu, C., & Qin, W. (2019) · Waste and Biomass Valorization · doi:10.1007/s12649-017-0059-y · Cited by 617
Oxidative cleavage of polysaccharides by monocopper enzymes depends on H2O2
Bissaro, B., Røhr, Å. K., Müller, G., Chylenski, P., Skaugen, M., Forsberg, Z., Horn, S. J., Vaaje-Kolstad, G., & Eijsink, V. G. H. (2017) · Nature Chemical Biology · doi:10.1038/nchembio.2470 · Cited by 594
Lytic Polysaccharide Monooxygenases in Biomass Conversion
Hemsworth, G. R., Johnston, E. M., Davies, G. J., & Walton, P. H. (2015) · Trends in Biotechnology · doi:10.1016/j.tibtech.2015.09.006 · Cited by 314
Kommedal, E. G., Angeltveit, C. F., Klau, L. J., Ayuso-Fernández, I., Arstad, B., Antonsen, S. G., Stenstrøm, Y., Ekeberg, D., Gírio, F., Carvalheiro, F., et al. (2023) · Nature Communications · doi:10.1038/s41467-023-36660-4 · Cited by 58
Metadata
- Authors
- Eibinger, M., Ganner, T., Bubner, P., Rošker, S., Kracher, D., Haltrich, D., Ludwig, R., Plank, H., & Nidetzky, B.
- Venue
- Journal of Biological Chemistry
- Publisher
- Elsevier BV
- Published
- 2014-12
- Volume
- 289
- Issue
- 52
- Pages
- 35929-35938
- ISSN
- 0021-9258 (ISSN-L)
- OpenAlex
- W2103990390
- Cited by
- 286
- References
- 35
- FWCI
- 10.76
- Type
- journal article
- Language
- en
- Open access
- hybrid
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- Eibinger, M., Ganner, T., Bubner, P., Rošker, S., Kracher, D., Haltrich, D., Ludwig, R., Plank, H., & Nidetzky, B. (2014). Cellulose Surface Degradation by a Lytic Polysaccharide Monooxygenase and Its Effect on Cellulase Hydrolytic Efficiency. Journal of Biological Chemistry. https://doi.org/10.1074/jbc.m114.602227
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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