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Articles by Daniel Bartosik
Insights into a water-mediated catalytic triad architecture in CE20 carbohydrate esterases - Nature Communications
Abstract Carbohydrate esterases modify polysaccharides by removing different ester moieties thereby affecting their physicochemical properties and their accessibility by glycoside hydrolases. We determined the full-length structures of two members (Fl8CE20_II and PpCE20_II) from the carbohydrate esterase family 20 (CE20) by X-ray crystallography that feature an ancillary domain, inserted into the catalytic SGNH-hydrolase domain.
Metaproteomic Dataset on Semi‐Diurnal Variability of the Bacterioplankton Communities During a Spring Phytoplankton Bloom in the North Sea
CAZymes carbohydrate-active enzymes LTER long-term ecological research MAGs metagenome-assembled genomes PCoA principal coordinate analysis R2 Pearson correlation coefficient Just as other meta-omics technologies, microbial metaproteomics expands the application of proteomics from pure cultures and simple model systems to complex biological systems consisting of entire microbial communities and possibly host cells [1].
Biochemical Characterization of Multimodular Xylanolytic Carbohydrate Esterases from the Marine Bacterium Flavimarina sp. Hel_I_48
1 Introduction Modern biotechnological research has made the sustainable manufacturing of chemicals, pharmaceuticals, and other high-value products a major objective in response to growing environmental concerns and depleting petrochemical supplies. Exploiting renewable resources and developing enzyme-based processes as a sustainable route toward the extraction of valuable components are key elements of these efforts.
Alpha-glucans from bacterial necromass indicate an intra-population loop within the marine carbon cycle - Nature Communications
Abstract Phytoplankton blooms provoke bacterioplankton blooms, from which bacterial biomass (necromass) is released via increased zooplankton grazing and viral lysis. While bacterial consumption of algal biomass during blooms is well-studied, little is known about the concurrent recycling of these substantial amounts of bacterial necromass.
Novel laminarin-binding CBMs in multimodular proteins of marine Bacteroidota feature prominently in phytoplankton blooms
Abstract The β-(1,3)-glucan laminarin functions as storage polysaccharide in marine stramenophiles such as diatoms. Laminarin is abundant, water-soluble and structured simply, making it an attractive substrate for marine bacteria. As a consequence, many marine bacteria have developed competitive strategies to scavenge and decompose laminarin, which involves carbohydrate-binding modules (CBMs) as key players.
Diatom fucan polysaccharide precipitates carbon during algal blooms
Abstract The formation of sinking particles in the ocean, which promote carbon sequestration into deeper water and sediments, involves algal polysaccharides acting as an adhesive, binding together molecules, cells and minerals. These as yet unidentified adhesive polysaccharides must resist degradation by bacterial enzymes or else they dissolve and particles disassemble before exporting carbon.
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